I just did this job on my 2005 Altima 2.5. One comment I wanted to make is to make sure you use "deep" 14mm sockets on the 5 manifold bolts. Regular sockets will bottom out and I accidentally stripped the first nut. It stripped so easily it was impossible to get off without cutting it off. That made the job an hour longer than it need to be :(
I want to thank you guys for posting this video. It helped and guided me to install the exhaust manifold and catalytic converter on my daughters 2003 Nissan Altima. Without this video i think it would of taken me a longer time. I did it by myself in 3 and 1/2 hours, and ive never done this before. Thanks guys.
I'm doing my daughters tomorrow. can't really afford to have it done so I'm gonna try at home . thanks for your input it let's me belive I've got this :)
My sister and I ordered this part for her nissan We choose the right part but it was out of stock and yet our order came in less than a week, everything in neat condition. thank you You people rock.
Just finished my install. Thanks 1Aauto for the step by step. That long bolt for the Alternator is what took the most time, everything else I did with confidence thanks to 1Aauto
+Julius W Thank you for the great reply. We love to empower our customers by showing you how-to perform your own auto repairs while installing our high quality auto parts. Have a great day! 1aauto.com
This was much helping and very similar for the Nissan x-trail T30. The only difference is that you have to remove the wheel and a shield to get to the tensioner. Thanks for the video!😊👍🏻 saved a lot of money. Replaced the fan belt while I was at it. No more squeaky sounds 🎶 5,5 hour job with some troublesome bolts.
Can't thank you enough for your awesome and helpful videos. You've saved me so much frustration and probably thousands of dollars as well. By the way, the 06 (and maybe 05) Altimas have only one O2 sensor connected to the exhaust manifold. The second one is on the other cat located underneath the car. The FSM diagram seems to have the wrong diagram for the '06 as well so it's extra confusing. Also there's no donut gasket on the OEM manifold flange nor on the replacement manifold. I think the torch should be the absolute last resort, especially since most of us don't have lifts and are using jackstands. An open flame in a confined space near the fuel tank just sounds like a bad idea for us amateurs. Irwin makes an excellent bolt extractor socket which basically is hammered/chiseled onto the bolt head giving the needed grip on rusty rounded bolts. It can be connected to a ratchet, but I had an air impact wrench and boy, was it a lifesaver. The impact wrench with the bolt extractor will either break the nut or the bolt. Make sure to get the deep well sockets. They're 31 for a set on Amazon. I think Harbor Freight makes a similar version
Catalytic converter replacement at Nissan dealership is $1,200. At a local mechanic it's $600. Watching the video I understand why... what a PITA to have to remove the alternator. I'm guessing breaking loose the connector bolts from the exhaust is the toughest part. Do you have a part number for the O2 sensor for a 2006 Altima S?
The lower O2 sensor can be salvaged, if it is tight, by leaving it attached to the catalytic converter when the cat is removed. The O2 sensor can then be removed by holding the catalytic converter's manifold in a bench vise and removing the O2 sensor with an O2 socket that has a steel ring around it to stop it spreading.
I made up a steel ring to slide fit over the outside diameter of my O2 wrench. The ring stops the O2 socket spreading open if I have to really torque on the sensor to remove it. This works very well. I installed some scrub screws in the ring to hold it in position while in use.
I just did this job yesterday. The worst part is the belt, especially if it gets off track. I did not need a torch, as PB Blaster is legit. It makes life more simple if your replace the alternator while its off.
+MJ Cummings Thanks for watching. If any of our viewers needs to make this repair, we carry the auto repair part shown in this video on our website. Here is a link to them www.1aauto.com/1A/direct-fit-catalytic-converter/Nissan/Altima/1AEEM00620?RUclips&CTA+Comment&R0fsWjS9Q
Great video never known how easy fixing cars is. And the guys at the shop that I've taken my car to tried to charge an 1000$ to take off an simple part. Again thanks for the help, now I'll be able to save an extra 800$
+Wade N Thanks for checking us out! This is typically how you will find aftermarket replacements, however, it is possible to find them separately as well. 1aauto.com
What exactly is that second lug nut hole for on this ? I put in my O2 sensor but now idk if im suppose to place anything there? My manifold exhaust quiets down after I place or cover that particular lug nut hole, thanks
Typically, the manifold/ cat converter on the engine head goes bad much before the the cat downstream since it is the first one the gases get to. Also, good job disconnecting that battery before screwing with O2 sensors. Could short the ecm that way.
Hello. Thanks for your videos. I have the same car. Everytime I look something for my car your videos show up. I have the check engine light on. The mechanic checked the error code and told me that the code is about the upper catalytic converter or the oxygen sensor on it. However the car has no problem when running. I guess when you have a faulthy sensor you should have other problems or symptoms. The car has 103.000 miles. Do you think the problem is the catalytic converter or the oxygen sensor? Thx
3 QUESTIONS...ANYTHING TO LOOK OUT FOR WHEN REMOVING/REPLACING THE BELT ON THE PULLEYS? WILL IT JUST GO BACK TO THE RIGHT TENSION WHEN RETURNED TO THE ALTERNATOR PULLEY & LASTLY WHAT DO YOU DO WITH THE BELT WHEN YOU TAKE IT OFF THE ALTERNATOR SO IT DOESNT COME OFF OF THE OTHER PULLEYS? THANKS SO MUCH FOR YOUR IN DEPTH VIDEOS AND IM LOOKING FORWARD TO YOUR RESPONSE SORRY FOR ALL CAPS KEYBOARD IS BROKEN
I hope someone can help me. I have a 04 Altima 3.5L SE, is this the same process? And I need a catalytic converter is the long big part the converter already assembled to the manifold? I'm a newbie working on cars and I'm trying to learn.
I would like to take this project on myself but am concerned about removing the alternator. Is it possible to remove the manifold without taking off the alternator? Any help with this would be greatly appreciated
My car is saying it has that p0420 code on it threshold below efficiency bank 1 I had a 2003 Nissan Altima do you guys think it’s the manifold or the one under the car
I have a Nissan sentra SER 02 and I noticed that when you took off the heat shield you went behind the alternator. when I got my car it didn't have the heat shield. Does that mean I have to take off the alternator to try and get out the manifold? or was that just because of the shield being the size it is?...also you video did help because I plan on doing it myself.
So how many o2 sensors does an 05 Nissan Altima 2.5 have? I have p 0420 code on. Ima try to change the o2 sensors before wanting to change the catayliac converter.
I think you can but will need a 14mm gear wrench to get the last nut off under the alternator. I suggest pulling the cooland reservoir and just completely remove that fuse and wire box. Makes it a shot ton easier to remove the alternator.
@@dandeal326 yes, I wasted so much time trying to get out the bolt. Then imagined trying to get it back in. The only thing that worked was the O2 sensor, which really surprised me, figured I'd be buying a new one.
use 6 point sockets on manifold bolts, sometimes the stud will come off with the bolt, thats ok. if you did strip the nut then try removing the stud with a star socket, not sure what size, maybe 10 mil., the nut will come off with it. or heat them
+Keith Lewis We do not have a way of being able to diagnose the issue that you are experiencing with your vehicle but suggest taking it to a local mechanic for a proper diagnosis.
So I just got this done to my 05 Nissan Altima yesterday, he said he couldn't out the heat cover back on because the new catalytic converter was bigger? 🤔 Yet my car shakes and jilts when in idle (stopped at a light) then it stalls/ loses power and cuts off then I have to put in park and restart the vehicle....what could have went wrong during the replacement?
I have found it is easier to remove the A/F Sensor (Downstream O2) if the heat shield is removed first, but don't be surprised if it doesn't come out or it breaks. You will need a new A/F Sensor anyway, so Don't even bother with it.
@5:48 How come you guys put the alternator and engine cover back on? ;-P hehe Good video, looks like it'll be very similar to my 2003 Sentra SE-R Spec-V. My O2 sensor corroded around the edges and fell out, leaving a thumb-sized hole in the manifold. I've got it in there with some QuikSteel and JB Weld, but it's my 3rd attempt, the first 2 it fell back out. So here I am looking to replace the entire thing soon. Luckily I don't have to worry about the O2 sensor since I know it's shot anyway, heh. I'll check out your site while I go shopping for manifolds. I very much appreciate the simple, quick, to-the-point video. Well done.
+CeruleanDragon1 Part of another video looks like it was accidently put in. Sorry. Hope this helped out If any of our viewers needs to make this repair here's a link to them replacement part shown in this video on our website www.1aauto.com/1A/direct-fit-catalytic-converter/Nissan/Altima/1AEEM00620?RUclips&CTA%20Comment&ATony
+Lorenzo Chaparro We do recommend following the correct procedure which is to remove the alternator to gain access. However, if you can gain access without damaging anything you would be able to without removing the alternator.
I have a 02 altima and I believe I need a new catalytic converter but do I need to change the converter and the pipe because they both are rusted and black?
+Sean Anderson Yes, this part will pass PA inspection. Be sure to check the 'Vehicle Fit' tab to make sure it is the correct part for your vehicle. Thanks for checking us out!
2006 Nissan Altima 2.5 1a auto what's the difference between your in house catalytic converter brand and other brands on your site ? Which brand are you using on this video?
+devin mason Our economy converter is manufactured just like the OE converter. The one shown in this video is our economy converter. Here is a link to them on our website. Hope this helps you out www.1aauto.com/1A/direct-fit-catalytic-converter/Nissan/Altima/1AEEM00620?RUclips&CTA+Comment&R0fsWjS9Q
If it's an exhaust manifold and it has a light coating of protective oil on it, it may smoke for a bit as it warms up and the oil burns off. Thanks for watching.
+Joel H We wouldn't be able to diagnose an issue here, but if the only thing causing your issue is the catalytic converter, this will rectify the issue. 1aau.to/m/Shop-1AAuto-c
I had this done at a repair shop. My 2005 Nissan Altima 2.5 came back working fine for a few days. But then the manifold began to leak. Come to find out, the shop i went to put brass or copper nuts on the studs. They came loose. Now my new manifold is warped and leaks. Ill have to pay for that again. The nuts are worthless, as are the studs now. My question is, where can i buy the correct studs and nuts to begin my repairs?
raymond smith SAME ISSUE....SAME CAR...I've paid almost 1800$ for this exhaust manifold convertor sensor nonsense in the past 30 days....I think they're ripping me off because I have some class about myself...They think I'm rich because of how I carry myself......Mechanics these days are nothing but thieves...They'll half way fix the problem ON PURPOSE because they know you'll come back to them....I don't think they even care about the stress they cause ppl...It's very stressful and financially draining....At this point, I think I just going to take it to a nissan dealership repair shop....Atleast the dealership will fix the problem...Yes they charge alot but you know they'll fix the problem because the dealership guys are EXPERTS on nissan....I'm soo frustrated...and my emissions test is due soon. I don't know what to do.
Question. What's the thing that's on top of the radiator and the fans that connects into the air filter? My 03 altima is missing that on piece and I can't figure out what's it called. Edit: if a 2003 nissan altima 2.5l engine is missing the part I'm talking about above, could not having that part cause the engine code p0507?
+AlphaDesigns Since there could be multiple reasons why you’re experiencing this difficulty with your vehicle, I strongly recommend that you have a reputable mechanic inspect it. They’ll be able to troubleshoot the problem and tell you what part or parts you’ll need for the repair. We are unsure of the part that you are referring to, having someone look at the item in person will be a lot more accurate.
@@1AAuto I can't afford to take it to a mechanic, hence trying to figure it out on my own. If I could afford it I would have already taken it to mechanic
+Chris Rodriguez The catalytic converter is actually one whole unit that needs to be replaced when it fails. Here's a link to the new part. We ship most orders placed in the US with free shipping! www.1aauto.com/1A/direct-fit-catalytic-converter/Nissan/Altima/1AEEM00620?RUclips&CTA%20Comment&ATony
My question is. I have a 2002 3.5se Altima. when I start it cold. u hear a strange sound from passenger side of engine but when hot it stops. what is the name of the converter behind my engine? one is under one is under the engine. the one behind my mechanic says leaks. I don't know the name every time I try to order.
It sounds like your talking about the catalytic converter. We carry them with FREE SHIPPING in the lower 48 states on our website. Here's a link to them if you would like to see what we carry. www.1aauto.com/1A/direct-fit-catalytic-converter/Nissan/Altima/-/-/2002?VIdeoReply&VideoReply&ATony
+Makaveli 214 We don't have a how-to video for your vehicle right now, but the basic steps in this video should be enough to do this task. Buy this part for your vehicle on 1AAuto.com: 1aau.to/m/Shop-1AAuto-c
Will this Cat Pass california emission? i have a California Emissions Nissan altima 03 and Want to know if it work on my nissan and if i will pass emission
+Joshua Moore Thanks for checking us out! There are not specific torque specifications for the alternator. Just tighten until tight. Just be sure to not overtighten. Please let us know if you have any further questions, thank you.
@@1AAuto awesome! I tackled this job in just 3 hours today. Including oil change and spark plugs. As I was bolting in the alternator bolts, I realized that it's aluminum so, I didn't get too crazy with it. The job went very smooth because of this video. Thanks a ton!
Hi guys, I got a p0420 bank 1 code on my 2016 nissan Altima. I need a new catalytic converter. Can you give me a recommendation that I should go with for my vehicle
+Israel Pelayo Great question! Unfortunately, due to state emissions regulations, we cannot ship this item to the state of California as it is not C.A.R.B ( California Air Research Board) approved for use in this state. This also holds true for New York, as well. We apologize for the inconvenience. For non-California/New York residents, 1A Auto offers this part here: www.1aauto.com/1A/direct-fit-catalytic-converter/Nissan/Altima/1AEEM00620?RUclips&CTA%20Comment&ATony
+mexicucho83 The part # for the Exhaust manifold Catalytic Converter Assembly for your vehicle is : 1AEEM00620. Please let us know if you have any additional questions. Thank you!
+mexicucho83 You can find this part here: 1aauto.com/2002-06-nissan-altima-sentra-exhaust-manifold-catalytic-converter-assembly-cateran-inc/i/1aeem00620/342404/2002
+john aranjo Thanks for watching! I would offer them from us, but unfortunately we do not carry them at this time. Check with your local auto parts store, and if all else fails you can try the dealership. www.1aauto.com
+jesus pimentel If you need the part shown in this video it can be purchased here! www.1aauto.com/1A/direct-fit-catalytic-converter/Nissan/Altima/1AEEM00620?RUclips&CTA+Comment&R0fsWjS9Q
I've used your alternator and the video to replace the alternator before and it was perfect. On this one, are there two catalytic converters? You have this one and a video and for my 2004 Altima 2.5, you also have an exhaust pipe with Cat. Are there two and do I need to replace both? Asking because a shop said I need to replace the cat and the cost of the Cat was $500 from them. They didn't mention anything about the "Exhaust pipe with Cat" shown in your catalog and video here: www.1aauto.com/2002-06-nissan-altima-exhaust-pipe-with-catalytic-converter/i/1accd00255?f=392025&y=2004&video=PRODUCT_INSTALLATION_VIDEO
all the studs broke off to the cylinder head ! I should of taken to a muffler shop they were going to charge me $100.00 to replace the manifold and stupid me trying to save $100.00 now cost me $500.00
+Juan Sanchez Depending on what you received they can come with a bung so you can plug the extra hole. You will want to clear this up with the seller to make sure you have the correct part first! 1aauto.com
+Donna Terri Here is a link to the replacement part shown in this video on our website. Hope this helps you out. www.1aauto.com/1A/direct-fit-catalytic-converter/Nissan/Altima/1AEEM00620?RUclips&CTA+Comment&R0fsWjS9Q
I have a question on the Cadillac sts 05. Saying catalytic converter code for emission do I have to change the whole system or can I just do the converter?
Thanks for watching. That is a question you will need to ask you mechanic. Unfortunately exhaust systems are out in the open and tend to rot at the flange for the pipes. If the flange is rotted, when you install the new pipe it wont seal. If the flanges are OK then you can simply do the Convertor. So it really depends on the individual vehicle. Hope this helped! 1aauto.com 888-844-3393
I was told by the dealer who sold me my altima with what turned out to be a bad pre cat. They keep saying do not disconnect the battery for any sort of work. So how would i remove the power source from the alternator without disconnecting the battery?
√ *Watch the Video*
√ *Buy The Part at 1A Auto* 1aau.to/m/Visit-1AAuto
√ *Do it Yourself*
√ *Save Money*
I just did this job on my 2005 Altima 2.5. One comment I wanted to make is to make sure you use "deep" 14mm sockets on the 5 manifold bolts. Regular sockets will bottom out and I accidentally stripped the first nut. It stripped so easily it was impossible to get off without cutting it off. That made the job an hour longer than it need to be :(
Thanks for watching, have a great day! 1aauto.com 866-403-3393
I want to thank you guys for posting this video. It helped and guided me to install the exhaust manifold and catalytic converter on my daughters 2003 Nissan Altima. Without this video i think it would of taken me a longer time. I did it by myself in 3 and 1/2 hours, and ive never done this before. Thanks guys.
+Gino Hernandez Nice work. We're glad the video helped you out. 1aauto.com 866-403-3393
I'm doing my daughters tomorrow. can't really afford to have it done so I'm gonna try at home . thanks for your input it let's me belive I've got this :)
My sister and I ordered this part for her nissan We choose the right part but it was out of stock and yet our order came in less than a week, everything in neat condition. thank you You people rock.
Thanks for checking us out. Have a great day! 1aauto.com 888-844-3393
you guys are awesome. keep building your library of tutorials and you can keep me as a customer.
Just finished my install. Thanks 1Aauto for the step by step. That long bolt for the Alternator is what took the most time, everything else I did with confidence thanks to 1Aauto
+Julius W Thank you for the great reply. We love to empower our customers by showing you how-to perform your own auto repairs while installing our high quality auto parts. Have a great day! 1aauto.com
This was much helping and very similar for the Nissan x-trail T30. The only difference is that you have to remove the wheel and a shield to get to the tensioner. Thanks for the video!😊👍🏻 saved a lot of money. Replaced the fan belt while I was at it. No more squeaky sounds 🎶 5,5 hour job with some troublesome bolts.
It’s easier to remove the O2 sensors after you pull the manifold
+William Hubbell If they are in the way, it may give you a little more room. 1aauto.com
Can't thank you enough for your awesome and helpful videos. You've saved me so much frustration and probably thousands of dollars as well.
By the way, the 06 (and maybe 05) Altimas have only one O2 sensor connected to the exhaust manifold. The second one is on the other cat located underneath the car. The FSM diagram seems to have the wrong diagram for the '06 as well so it's extra confusing. Also there's no donut gasket on the OEM manifold flange nor on the replacement manifold.
I think the torch should be the absolute last resort, especially since most of us don't have lifts and are using jackstands. An open flame in a confined space near the fuel tank just sounds like a bad idea for us amateurs.
Irwin makes an excellent bolt extractor socket which basically is hammered/chiseled onto the bolt head giving the needed grip on rusty rounded bolts. It can be connected to a ratchet, but I had an air impact wrench and boy, was it a lifesaver. The impact wrench with the bolt extractor will either break the nut or the bolt. Make sure to get the deep well sockets. They're 31 for a set on Amazon. I think Harbor Freight makes a similar version
Catalytic converter replacement at Nissan dealership is $1,200. At a local mechanic it's $600. Watching the video I understand why... what a PITA to have to remove the alternator. I'm guessing breaking loose the connector bolts from the exhaust is the toughest part. Do you have a part number for the O2 sensor for a 2006 Altima S?
The lower O2 sensor can be salvaged, if it is tight, by leaving it attached to the catalytic converter when the cat is removed. The O2 sensor can then be removed by holding the catalytic converter's manifold in a bench vise and removing the O2 sensor with an O2 socket that has a steel ring around it to stop it spreading.
That is *if* it's working. If the cat is bad, it's highly possible the O2 sensor has been destroyed as well.
So if it clogged up and there's no exhaust coming out which pipe should i replace first? The shop quoted me 1,300 dollars for the whole job....
Thanks for this well done instructional video. Sorry I can't order from you, I'min CA.
I made up a steel ring to slide fit over the outside diameter of my O2 wrench. The ring stops the O2 socket spreading open if I have to really torque on the sensor to remove it. This works very well. I installed some scrub screws in the ring to hold it in position while in use.
i use a hose clamp to keep the o2 socket from expanding
Peter Tyrrell good job
I just did this job yesterday. The worst part is the belt, especially if it gets off track. I did not need a torch, as PB Blaster is legit. It makes life more simple if your replace the alternator while its off.
+MJ Cummings Thanks for watching. If any of our viewers needs to make this repair, we carry the auto repair part shown in this video on our website. Here is a link to them www.1aauto.com/1A/direct-fit-catalytic-converter/Nissan/Altima/1AEEM00620?RUclips&CTA+Comment&R0fsWjS9Q
Great video never known how easy fixing cars is. And the guys at the shop that I've taken my car to tried to charge an 1000$ to take off an simple part. Again thanks for the help, now I'll be able to save an extra 800$
Martinez Howard You’re welcome! Glad we could help 1aauto.com 866-403-3393
Once again,,,,,your video answers all my questions. So, i guess the manifold n cat are one integrated piece. Now, to find a replacement this weekend.
+Wade N Thanks for checking us out! This is typically how you will find aftermarket replacements, however, it is possible to find them separately as well. 1aauto.com
I appreciate you for what you are doing
Thanks, Richardson
Thank you for watching. Please let us know how the repair comes out!
1aauto.com 888-844-3393
What exactly is that second lug nut hole for on this ? I put in my O2 sensor but now idk if im suppose to place anything there? My manifold exhaust quiets down after I place or cover that particular lug nut hole, thanks
Typically, the manifold/ cat converter on the engine head goes bad much before the the cat downstream since it is the first one the gases get to. Also, good job disconnecting that battery before screwing with O2 sensors. Could short the ecm that way.
Just have the pipe hot to remove O2 sensor and stubborn bolts. It expands when warm. Just don’t burn yourself
Good idea
Is this process pretty similar for 1999 models? Can't find any good overviews for this generation of altima.
Hello. Thanks for your videos. I have the same car. Everytime I look something for my car your videos show up. I have the check engine light on. The mechanic checked the error code and told me that the code is about the upper catalytic converter or the oxygen sensor on it. However the car has no problem when running. I guess when you have a faulthy sensor you should have other problems or symptoms. The car has 103.000 miles. Do you think the problem is the catalytic converter or the oxygen sensor? Thx
3 QUESTIONS...ANYTHING TO LOOK OUT FOR WHEN REMOVING/REPLACING THE BELT ON THE PULLEYS? WILL IT JUST GO BACK TO THE RIGHT TENSION WHEN RETURNED TO THE ALTERNATOR PULLEY & LASTLY WHAT DO YOU DO WITH THE BELT WHEN YOU TAKE IT OFF THE ALTERNATOR SO IT DOESNT COME OFF OF THE OTHER PULLEYS? THANKS SO MUCH FOR YOUR IN DEPTH VIDEOS AND IM LOOKING FORWARD TO YOUR RESPONSE SORRY FOR ALL CAPS KEYBOARD IS BROKEN
Hi great video, tried to do the install myself but i had a little trouble getting the 5 bolts off the manifold. Any suggestions?
Is the downstream end of the flex pipe loosened when reconnecting the flex pipe and cat?
Is it the same procedure for a 3.5 V6 ??
Not even close. A v6 and an inline 4 motor are entirely different.
This was a great video..thanks
thanks for the great video. will buy from you all in the future
+specter578 Thanks for the kind words. Glad to hear we could help you out. 1aauto.com 866-403-3393
I hope someone can help me. I have a 04 Altima 3.5L SE, is this the same process? And I need a catalytic converter is the long big part the converter already assembled to the manifold? I'm a newbie working on cars and I'm trying to learn.
I have a 2002 Nissan pathfinder 5.3 6 cylinder. Do you have a video on taking the cats near the manafold for my vehicle?
I would like to take this project on myself but am concerned about removing the alternator. Is it possible to remove the manifold without taking off the alternator? Any help with this would be greatly appreciated
What is the torque and and is there a tightening sequence for the manifold?
My car is saying it has that p0420 code on it threshold below efficiency bank 1 I had a 2003 Nissan Altima do you guys think it’s the manifold or the one under the car
I have a Nissan sentra SER 02 and I noticed that when you took off the heat shield you went behind the alternator. when I got my car it didn't have the heat shield. Does that mean I have to take off the alternator to try and get out the manifold? or was that just because of the shield being the size it is?...also you video did help because I plan on doing it myself.
If you can access the bolt, you may not need to remove the alternator. Thanks for watching. 1aauto.com 888-844-3393
So how many o2 sensors does an 05 Nissan Altima 2.5 have? I have p 0420 code on. Ima try to change the o2 sensors before wanting to change the catayliac converter.
Is it absolutely nessacerry to remove the alternator for this procedure?
Travis Lazenby I think it is in order to get the heat cover off, maybe? 🤔
I think you can but will need a 14mm gear wrench to get the last nut off under the alternator. I suggest pulling the cooland reservoir and just completely remove that fuse and wire box. Makes it a shot ton easier to remove the alternator.
@@portia2880 no heat cover comes off easily enough
@@dandeal326 yes, I wasted so much time trying to get out the bolt. Then imagined trying to get it back in. The only thing that worked was the O2 sensor, which really surprised me, figured I'd be buying a new one.
use 6 point sockets on manifold bolts, sometimes the stud will come off with the bolt, thats ok. if you did strip the nut then try removing the stud with a star socket, not sure what size, maybe 10 mil., the nut will come off with it. or heat them
My 2005 Nissan Altima 2.5 does not have two o2 sensor on the cat/manifold. It only has one sooo... what do you carry for this set up
??\
This should be the one you need. www.1aauto.com/1A/direct-fit-catalytic-converter/Nissan/Altima/1AEEM00620/342404/2005?VideoReply&VIdeoReply&ATony
Perfect, now how do I figure out where the leak is coming from to know if it's the manifold side. My nissan sounds like a diesel coming down the rd.
+Keith Lewis We do not have a way of being able to diagnose the issue that you are experiencing with your vehicle but suggest taking it to a local mechanic for a proper diagnosis.
So I just got this done to my 05 Nissan Altima yesterday, he said he couldn't out the heat cover back on because the new catalytic converter was bigger? 🤔 Yet my car shakes and jilts when in idle (stopped at a light) then it stalls/ loses power and cuts off then I have to put in park and restart the vehicle....what could have went wrong during the replacement?
Any check engine light?
Portia Williams hey 😫 I have the same problem in my car right now did you fix it? What was the problem ?
Great tut
I have found it is easier to remove the A/F Sensor (Downstream O2) if the heat shield is removed first, but don't be surprised if it doesn't come out or it breaks. You will need a new A/F Sensor anyway, so Don't even bother with it.
@5:48 How come you guys put the alternator and engine cover back on? ;-P hehe
Good video, looks like it'll be very similar to my 2003 Sentra SE-R Spec-V. My O2 sensor corroded around the edges and fell out, leaving a thumb-sized hole in the manifold. I've got it in there with some QuikSteel and JB Weld, but it's my 3rd attempt, the first 2 it fell back out. So here I am looking to replace the entire thing soon. Luckily I don't have to worry about the O2 sensor since I know it's shot anyway, heh. I'll check out your site while I go shopping for manifolds.
I very much appreciate the simple, quick, to-the-point video. Well done.
+CeruleanDragon1 Part of another video looks like it was accidently put in. Sorry. Hope this helped out If any of our viewers needs to make this repair here's a link to them replacement part shown in this video on our website www.1aauto.com/1A/direct-fit-catalytic-converter/Nissan/Altima/1AEEM00620?RUclips&CTA%20Comment&ATony
Can you guys do a video about the rack and pinion replacement? I can't find one.
We'll keep this request in mind in the event that we need to make this particular repair. 1aauto.com 888-844-3393
Is this the replacement for bank 1 P0420?
Thank you! Great Video...Just one question...Is this part California Legal?
This is California emissions legal, however we can not ship them to the state of California.
To avoid cutting if u have a pair of vise gripes put it on tight and tap it lose with a hammer just did it to day
Question do you really have to take off the alternator or does it just make it easier to get the header nuts ?
+Lorenzo Chaparro We do recommend following the correct procedure which is to remove the alternator to gain access. However, if you can gain access without damaging anything you would be able to without removing the alternator.
I have a 02 altima and I believe I need a new catalytic converter but do I need to change the converter and the pipe because they both are rusted and black?
If they are starting to rot out you might have to.
Will your part pass PA inspection? I need to replace mine and am looking for an oem fit without going to the dealer and paying their high prices
+Sean Anderson Yes, this part will pass PA inspection. Be sure to check the 'Vehicle Fit' tab to make sure it is the correct part for your vehicle. Thanks for checking us out!
2006 Nissan Altima 2.5 1a auto what's the difference between your in house catalytic converter brand and other brands on your site ? Which brand are you using on this video?
+devin mason Our economy converter is manufactured just like the OE converter. The one shown in this video is our economy converter. Here is a link to them on our website. Hope this helps you out www.1aauto.com/1A/direct-fit-catalytic-converter/Nissan/Altima/1AEEM00620?RUclips&CTA+Comment&R0fsWjS9Q
I have an 05 altima. Is it normal for the car to smoke for a little while after installing the new part or is this indicative of a problem?
If it's an exhaust manifold and it has a light coating of protective oil on it, it may smoke for a bit as it warms up and the oil burns off. Thanks for watching.
I was just curious was the torch used an oxy acetylene torch?
HI, Yes that was an acetylene torch that was used. Thanks for watching. 1aauto.com 888-844-3393
My old cat used two o2 sensors but my replacement cat only uses one o2 sensor. Will I have a check engine light? If so, how do I fix this?
My altima is a 2003. The replacement cat is from a 2006.
Will this catalytic converter turn off my check engine light and help me pass
Connecticut emissions test ?
+Joel H We wouldn't be able to diagnose an issue here, but if the only thing causing your issue is the catalytic converter, this will rectify the issue. 1aau.to/m/Shop-1AAuto-c
I had this done at a repair shop. My 2005 Nissan Altima 2.5 came back working fine for a few days. But then the manifold began to leak. Come to find out, the shop i went to put brass or copper nuts on the studs. They came loose. Now my new manifold is warped and leaks. Ill have to pay for that again. The nuts are worthless, as are the studs now. My question is, where can i buy the correct studs and nuts to begin my repairs?
raymond smith
SAME ISSUE....SAME CAR...I've paid almost 1800$ for this exhaust manifold convertor sensor nonsense in the past 30 days....I think they're ripping me off because I have some class about myself...They think I'm rich because of how I carry myself......Mechanics these days are nothing but thieves...They'll half way fix the problem ON PURPOSE because they know you'll come back to them....I don't think they even care about the stress they cause ppl...It's very stressful and financially draining....At this point, I think I just going to take it to a nissan dealership repair shop....Atleast the dealership will fix the problem...Yes they charge alot but you know they'll fix the problem because the dealership guys are EXPERTS on nissan....I'm soo frustrated...and my emissions test is due soon. I don't know what to do.
I did the same job to my car but the gasket was carbon fiber I thinkAnd it started smoking a little bit
Question. What's the thing that's on top of the radiator and the fans that connects into the air filter? My 03 altima is missing that on piece and I can't figure out what's it called.
Edit: if a 2003 nissan altima 2.5l engine is missing the part I'm talking about above, could not having that part cause the engine code p0507?
+AlphaDesigns Since there could be multiple reasons why you’re experiencing this difficulty with your vehicle, I strongly recommend that you have a reputable mechanic inspect it. They’ll be able to troubleshoot the problem and tell you what part or parts you’ll need for the repair. We are unsure of the part that you are referring to, having someone look at the item in person will be a lot more accurate.
@@1AAuto I can't afford to take it to a mechanic, hence trying to figure it out on my own. If I could afford it I would have already taken it to mechanic
When you get a code of P0420, how do you know what part of your catalytic converter you need to replace?
+Chris Rodriguez The catalytic converter is actually one whole unit that needs to be replaced when it fails. Here's a link to the new part. We ship most orders placed in the US with free shipping! www.1aauto.com/1A/direct-fit-catalytic-converter/Nissan/Altima/1AEEM00620?RUclips&CTA%20Comment&ATony
My question is. I have a 2002 3.5se Altima. when I start it cold. u hear a strange sound from passenger side of engine but when hot it stops. what is the name of the converter behind my engine? one is under one is under the engine. the one behind my mechanic says leaks. I don't know the name every time I try to order.
It sounds like your talking about the catalytic converter. We carry them with FREE SHIPPING in the lower 48 states on our website. Here's a link to them if you would like to see what we carry. www.1aauto.com/1A/direct-fit-catalytic-converter/Nissan/Altima/-/-/2002?VIdeoReply&VideoReply&ATony
is this the same procedure for the V6?
+Makaveli 214 We don't have a how-to video for your vehicle right now, but the basic steps in this video should be enough to do this task. Buy this part for your vehicle on 1AAuto.com: 1aau.to/m/Shop-1AAuto-c
Will this Cat Pass california emission? i have a California Emissions Nissan altima 03 and Want to know if it work on my nissan and if i will pass emission
+andy soccerboy Unfortunately our converters for this vehicle will not pass California state emissions, as they do not have the CARB stamp.
you folks are great thank you I have a Dodge Ram 1500 and a Hyundai accent 2000
plus a 2004 accent
Thank you for watching!
1aauto.com 888-844-3393
How many oxygen sensor are in total
Would this be a similar process for a 2001-2006 Hyundai elantra??
The process may be a little different on your application. We will keep this vehicle in mind for future videos.
1aauto.com 888-844-3393
There are two O2 sensors??
+Jack Black Yes there are two O2 sensors that attach to the manifold for this vehicle!
Don't you usually heat the car up before you try to remove an O2 sensor?
You do not need to. 1aauto.com 888-844-3393
I have a question.
How many foot pounds would you use to torque the alternator in?
+Joshua Moore Thanks for checking us out! There are not specific torque specifications for the alternator. Just tighten until tight. Just be sure to not overtighten. Please let us know if you have any further questions, thank you.
@@1AAuto awesome! I tackled this job in just 3 hours today. Including oil change and spark plugs. As I was bolting in the alternator bolts, I realized that it's aluminum so, I didn't get too crazy with it. The job went very smooth because of this video. Thanks a ton!
+Joshua Moore That is awesome to hear that!
Is this similar to the steps for a 2008 altima 2.5s?
Thank you for watching. This set up may be different than your 08 Model.
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Are the Cat's welded on or bolted on a 2002 Nissan Altima 3.5 Se?
+Kawasaki Cook Thank you for checking us out. The converters should be a bolt on application from the factory. 1aauto.com
What to do if you don't have a torch
I have a 05 nissan sentra 2.5 how to check for California or new york emissions ?
+mexicucho83 You could have you dealer run the VIN, or the vehicle may state on the engine label. Hope this helps you out. 1aauto.com
Hi guys, I got a p0420 bank 1 code on my 2016 nissan Altima. I need a new catalytic converter. Can you give me a recommendation that I should go with for my vehicle
+gbpackers41730 If you have a 4 cylinder and federal emissions in your vehicle then here is our part number 1AEEM00841.
+gbpackers41730 There is a label in the engine compartment that will have catalyst information on it. Thanks for checking us out! 1AAuto.com
is the procedure the same on a 2009 nissan altima
You may be able to apply some of the steps shown in this video to your application. Hope this helps out 1aauto.com
do you ship to cali due to the restrictions on the converters
+Israel Pelayo Great question! Unfortunately, due to state emissions regulations, we cannot ship this item to the state of California as it is not C.A.R.B ( California Air Research Board) approved for use in this state. This also holds true for New York, as well. We apologize for the inconvenience. For non-California/New York residents, 1A Auto offers this part here: www.1aauto.com/1A/direct-fit-catalytic-converter/Nissan/Altima/1AEEM00620?RUclips&CTA%20Comment&ATony
How much cost.?
I have a 02 Nissan Altima 2.5 ,can you tell me part # for the catalytic converter please
+mexicucho83 The part # for the Exhaust manifold Catalytic Converter Assembly for your vehicle is : 1AEEM00620. Please let us know if you have any additional questions. Thank you!
@@1AAuto I need one for a 02 Nissan Altima 2.5 California emissions
+mexicucho83 You can find this part here: 1aauto.com/2002-06-nissan-altima-sentra-exhaust-manifold-catalytic-converter-assembly-cateran-inc/i/1aeem00620/342404/2002
Where can i get new bolts for the manifold cover?!?!
+john aranjo Thanks for watching! I would offer them from us, but unfortunately we do not carry them at this time. Check with your local auto parts store, and if all else fails you can try the dealership. www.1aauto.com
Why do you remove it ?
Is THAT exhaust manifold the same for 09 nissan Rogue?
does anyone know the part # for a 2005 altima 2.5 SL ?
+jesus pimentel If you need the part shown in this video it can be purchased here! www.1aauto.com/1A/direct-fit-catalytic-converter/Nissan/Altima/1AEEM00620?RUclips&CTA+Comment&R0fsWjS9Q
I've used your alternator and the video to replace the alternator before and it was perfect. On this one, are there two catalytic converters? You have this one and a video and for my 2004 Altima 2.5, you also have an exhaust pipe with Cat. Are there two and do I need to replace both? Asking because a shop said I need to replace the cat and the cost of the Cat was $500 from them. They didn't mention anything about the "Exhaust pipe with Cat" shown in your catalog and video here: www.1aauto.com/2002-06-nissan-altima-exhaust-pipe-with-catalytic-converter/i/1accd00255?f=392025&y=2004&video=PRODUCT_INSTALLATION_VIDEO
all the studs broke off to the cylinder head ! I should of taken to a muffler shop they were going to charge me $100.00 to replace the manifold and stupid me trying to save $100.00 now cost me $500.00
Isn’t wd40 extremely flammable tho lol
I think I'm just gonna leave this for my Muffler and Brake Shop mechanic to do it for me
+Da Homie Thank you for checking us out. We certainly understand your choice, and hope that you attempt a separate repair in the future! 1aauto.com
What should i do if i ordered one with 2 oxygen sensors and my cat only has one
+Juan Sanchez Depending on what you received they can come with a bung so you can plug the extra hole. You will want to clear this up with the seller to make sure you have the correct part first! 1aauto.com
how much is my cost ?
+Donna Terri Here is a link to the replacement part shown in this video on our website. Hope this helps you out. www.1aauto.com/1A/direct-fit-catalytic-converter/Nissan/Altima/1AEEM00620?RUclips&CTA+Comment&R0fsWjS9Q
I have a question on the Cadillac sts 05. Saying catalytic converter code for emission do I have to change the whole system or can I just do the converter?
Thanks for watching. That is a question you will need to ask you mechanic. Unfortunately exhaust systems are out in the open and tend to rot at the flange for the pipes. If the flange is rotted, when you install the new pipe it wont seal. If the flanges are OK then you can simply do the Convertor. So it really depends on the individual vehicle. Hope this helped!
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I think I miss located the part and was looking at the muffler shucks. .
I was told by the dealer who sold me my altima with what turned out to be a bad pre cat. They keep saying do not disconnect the battery for any sort of work. So how would i remove the power source from the alternator without disconnecting the battery?
Isn’t wd40 extremely flammable tho lol