Piston skirt issues are probably the most expensive problem these 4.0's. My 99 WJ Limited with only 130k miles had a piston skirt break. Still had full compression but made a loud ticking noise, I was just happy to find it wasn't rod knock or a wiped cam. My 4.7 Dakota has 250k miles on it, original engine and transmission, still runs and shifts like brand new.
@@dogsarefun2 thank you and the secret is the extensions over top of the trans to get it you get good at it when you done a couple of them but I’ve been mechanic for about 12 years thanks for supporting the channel!
Thanks for the video. I just bought a 99 WJ for a grand with 156k miles. My friends shop used it as a shuttle vehicle and they did a bunch of maintenance on it over the years. It's runs and drives great except for some worn trail arm bushings. Thanks for the reminder with the crank sensors. I had a TJ years ago that left me stranded in the mountains because of that sensor
Dude, great video. I'm a very proud only of my used '01 Grand. I'm 68 and replaced /2.5 " lifted W/ Core4×4 adjustable control arms w/"boomerang spacer, extended sway bar links, Cooper AT3 all around. Did the math/measurements. NEVER had to get an alignment after 14,000 miles since I did the lift. Oh, of course adjustable tracbar, drag links & tie-rods. A perfect -2 degrees caster. No over/under steer. 1/4 " play driving. I should've been a factory engineer.
I paid my car off completely ( a forte) and just got myself an 05 grand Cherokee WK w/ the 3.7 v6 as a 4x4 winter beater. 148k miles. I know it’s an 05 but I’m just popping in to say my first jeep ever and I love it so much. Have been driving it more than my car lately hahahah
@ I’m in Md. and will say it dialed inspection once, due to needing new struts, even the e brake dash light cause that wasn’t displaying on dash lit up. The price for those struts and all the repairs for it to pass inspection ( + inspection) was too much but. As my dad said, it’s gonna have to owe us back and ut hasn’t had any problems!
@@mroddydawg yea if you don’t do the work yourself it gets pricy for sure but at end of day you drive it for a few years and it pays itself your dad is deff right!
@ if it were shocks, we could’ve probably done it. We have our shop, but with it being struts, they are a little bit more dangerous. He actually thought it would be safer to have it done and it was done right at a place that does state inspections as well. So it failed the first time, but after it was all repaired, it passed. He told me it cost 100 and some dollars just for the E brake dash light sensor to appear on the dash. Because it wasn’t at first when I got it. Just that sensor cost a lot. I just hope it serves me good now. Jeeps do be thirsty though for sure haha.
Thanks Bud, but I'm an owner of a used '01 Grand 4.0. Doesn't burn a drop of oil, 175,000 miles. I put Freedom 2.5 " lift w/Ruff Country 1" leveling spacer up front. CORE 4×4 adjustable control arms/trac bar. Did the math & measurements. Minus 2 degrees negative caster. New drag links/ tie-rod ends. 1/4 inch play driving. Oh, of course CORE 4×4 spacer block for the rear boomerang. It's loaded. Heated leather, etc. 242 Select Trac. I had a 2000 4.0 QuadraTrac my son wrecked. I'm glad it's gone, the 242 hd is great. Thanks for the video without the electrical gremlin issues But that's only because our WJ's were way ahead of our times. I even have stereo volume/change control on the back of my steering wheel.
I bought my beautiful 2004 4x4 Laredo in 2007. Still have it to this day and not looking to give up anytime soon. She only has 129K. But yes I was hoping you'd say the cam-shaft sensor! Happened to me a few months ago. Luckily, I was not on the hwy...which I hate driving on anyway.(Dallas lol). I was ready to trade it in. Luckily a good mechanic fixed it for me. Now I'm trying to find the knocking issue when I go over potholes. I already changed the ball joints, shocks and CV axles. I'll keep hunting. Maybe you've had something similar? BTW I'm about to buy those same headlight fixtures (Akkon). EDIT: I also fixed that bad wiring in the driver side boot myself! I saved hundreds. Only spent $5 on wire nuts. haha. Great video. Thanks!
Thanks for the support man if the clunk is in rear it has to do with rear shocks bushings at frame they sell a kit to fix it aftermarket shocks seem to make noise on these all the time do you have the 4.0?
@@dylansgarage3549 Oh no. The clunk is under the driver side floor board. You can clearly feel metal on metal. Parts to check on next would be: track bar, sway bar, drag link, maybe mounts? I'm not a mech so it's frustrating when my go to my mech who can't figure it out. It's only when I go over potholes or over any moderate rough terrain. I will check those back ones (which haven't give me any trouble) after I solve the front problem....Yes 4.0 I-6.....Thanks in advance if you have any ideas of what it could be! Subbed!
I am the proud owner of 2, 2004 WJs both with the 4.0.. 1 is a 4x4 Special Edition.. Quadra Trac 2.. All stock no lift anything.. Other one is 2wd but with a 5 inch lift Columbia Edition. Nice sound system as well.. bought it cheap $3K... Trying to make one Bad Ass machine out of 2 if possible... Lol... or just upgrade both and keep the Columbia Edition as a 2wd.. is it worth trying to convert the Colombia into a 4x4 ??? I have several other 4x4s to drive as well , including 2 3rd gen 4runners, and 2 jeep 4.0 XJS. 1 1991 2dr 4.0 and 1 2001 4dr 4.0 4x4.. Just hate to see that Columbia edition remain a 2wd. I really like it... Any suggestions or Advice would be greatly appreciated... Thx in advance for all your knowledge...
@@davidtrevino5211 convert it can’t be to hard to do center console shifter front diff t case drive shafts that’s really about it I can think of that you would need
Fr my climate control panel went out in mine so the last owner cut up the harness and wired a light switch to the blower motor, which almost caught on fire since I’ve had it so I don’t have any heating/ac. It was 26 degrees this morning on my way to work sucks.😭😭
I'm really glad I came across your video, contemplating on buying an 01 for $600 150k 4.0l one owner, have sputtering problem when running,this will be my project while enjoying retirement in 🇵🇷 Keep up the awesome job. 👍
@@PRProwler you won’t be disappointed if you get it for that price I just sold mine for a truck but I owned it for 10 years if you have any questions don’t hesitate to reach out to me I’ll help you out thanks for watching! Good luck with retirement
@@dylansgarage3549 I did the conversion on mine about a year ago and didn't get a code (2004 Laredo 4.0). I don't remember doing anything special when I did the conversion (fuses are all the same, didn't modify any OEM wiring, don't remember resetting the computer but could make a difference?, etc.) so not sure what the culprit would be in triggering your CE light. The plug that goes to the relay on mine sits disconnected to this day, with a bit of tape over it of course lol. I have to be honest though, the fan noise is obviously much louder, but overall I haven't had any other issues. The CE light coming on is curious 🤔
@@bitsquirrel140 not to sure honestly I knew it threw a fan code high circuit when I unplugged it so I run both fans now mechanical and electrical makes ac ice cold lol
Thinkin about pickin one of these up, im going from a 13 veloster turbo and im just concerned about the reliability on these things. Mainly with sensors
4.0 if you want reliable I can guarantee you will not regret it I’ve seen some of them with 500k on original engine sensors arnt to bad of a concern if they go they are cheap and easy to change I’d look more at rust then anything cause they are old now
@@dylansgarage3549 the one im looking at has three rusty spots. The rockers, the gas tank skid plate, and the rear a arm kinda (its not super rusty but its getting there). Its also the 4.0 with selec trac
@@cadencarrithers2339 rockers are normal mine has it also you got two options rock sliders weld in ones or replace rocker panels once you remove the foam Jeep thought was a good idea to put in there it won’t happen again a arm isn’t a big deal you can replace it or if lifting you will probably be replacing it anyways gas tank skid plate also can be replaced for couple hundred bucks I have to do mine also now the good is that’s most reliable engine and the best t case they came with I’d say go for it don’t sound bad at all
I’m currently driving my 99 limited with a 4.7 and only had to replace the heater core and front suspension parts it’s got 231 k on it and only payed 800.00$ for it
I have a 2000 Jeep Grand Cherokee 4.0 the only issue I'm having is the oil pressure. But I agree that the inline 6 is the best motor I wouldn't trade for anything
@@dylansgarage3549 I've replaced it 2 and the same problem it doesn't start showing low oil pressure until it gets hot I have a video of me going down the road at 50 mi an hour and only showing 5 lb of oil pressure. When I stopped and I'm in park and I give it gas the oil pressure goes up but at cruising speed the oil pressure will slowly go down
Did you ever had a leak in the rear cargo compartment when it rains? I have a leak when my sunroof got clogged and i fixed it but now i have a leak on the rear cargo area i cant find where from
I have a 2000 wj it runs fine in the winter but cuts off in the warmer months and won't restart until it cools off. But during that time when you turn the key on the gauges don't move nothing. It'll crank but won't start. Anybody else have this problem and can offer a solution?
@ bro I only got it for 3k im going to just replace the abs modual bleed the breaks and flip it make a few bucks😭it’s on a 3 in. lift kit with 33s nn it rides smooth but I think I just figured out im not a jeep guy after this road trip to Georgia
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Piston skirt issues are probably the most expensive problem these 4.0's. My 99 WJ Limited with only 130k miles had a piston skirt break. Still had full compression but made a loud ticking noise, I was just happy to find it wasn't rod knock or a wiped cam. My 4.7 Dakota has 250k miles on it, original engine and transmission, still runs and shifts like brand new.
I have a 99 you are spot on on the issues...mines getting ready to hit 300k still running strong have a 95 wrangler love the jeeps brother
@@KeithDunagan for sure man very reliable for sure!!
You're an excellent mechanic replacing the crank sensor in a parking lot with snow on the ground!
Sensor went on me about 10 years ago on the hottest day of the year, had to get towed 25 miles with me and my doggie.
@@dogsarefun2 thank you and the secret is the extensions over top of the trans to get it you get good at it when you done a couple of them but I’ve been mechanic for about 12 years thanks for supporting the channel!
Thanks for the video. I just bought a 99 WJ for a grand with 156k miles. My friends shop used it as a shuttle vehicle and they did a bunch of maintenance on it over the years. It's runs and drives great except for some worn trail arm bushings. Thanks for the reminder with the crank sensors. I had a TJ years ago that left me stranded in the mountains because of that sensor
@@BudzyFoxMX5 nice find and yea them crank sensors will get you lol good luck with it!! Thanks for watching
Ive had 2 WJs over the years. The one i currently have has 3 of the 4 problems you talked about. No rust cause SoCal.
No rust is a blessing I wish I didn’t liv somewhere with salt lol
Same and No rust cause Texas! :)
@@JasnoGT no rust would be nice I work on cars everyday at work and my life would be so easy to liv down south lol
The stance is insane
Dude, great video. I'm a very proud only of my used '01 Grand. I'm 68 and replaced /2.5 " lifted W/ Core4×4 adjustable control arms w/"boomerang spacer, extended sway bar links, Cooper AT3 all around. Did the math/measurements. NEVER had to get an alignment after 14,000 miles since I did the lift. Oh, of course adjustable tracbar, drag links & tie-rods. A perfect -2 degrees caster. No over/under steer. 1/4 " play driving. I should've been a factory engineer.
@@garyd.7294 thanks man I appreciate you watching and as long as you dial them in they drive great your specs sound good to
I paid my car off completely ( a forte) and just got myself an 05 grand Cherokee WK w/ the 3.7 v6 as a 4x4 winter beater. 148k miles. I know it’s an 05 but I’m just popping in to say my first jeep ever and I love it so much. Have been driving it more than my car lately hahahah
@@mroddydawg good to hear man it’ll treat you very well!!
@ I’m in Md. and will say it dialed inspection once, due to needing new struts, even the e brake dash light cause that wasn’t displaying on dash lit up. The price for those struts and all the repairs for it to pass inspection ( + inspection) was too much but. As my dad said, it’s gonna have to owe us back and ut hasn’t had any problems!
@@mroddydawg yea if you don’t do the work yourself it gets pricy for sure but at end of day you drive it for a few years and it pays itself your dad is deff right!
@ if it were shocks, we could’ve probably done it. We have our shop, but with it being struts, they are a little bit more dangerous. He actually thought it would be safer to have it done and it was done right at a place that does state inspections as well. So it failed the first time, but after it was all repaired, it passed. He told me it cost 100 and some dollars just for the E brake dash light sensor to appear on the dash. Because it wasn’t at first when I got it. Just that sensor cost a lot. I just hope it serves me good now. Jeeps do be thirsty though for sure haha.
@ lmao good to hear you got it taken care of!
Valve cover gasket, front timing chain cover, oil sensor unit, and on and on for leaks
My oil gage will drop to 0 and start beeping even though it feels fine when driving. I take it that is the sensor and my oil pressure is fine
@ayden8901 hard to say they have been known to fail, and then the engine if screwd. I overhead my 4.0 a few times,,,,, tough engines
Thanks Bud, but I'm an owner of a used '01 Grand 4.0. Doesn't burn a drop of oil, 175,000 miles. I put Freedom 2.5 " lift w/Ruff Country 1" leveling spacer up front. CORE 4×4 adjustable control arms/trac bar. Did the math & measurements. Minus 2 degrees negative caster. New drag links/ tie-rod ends. 1/4 inch play driving. Oh, of course CORE 4×4 spacer block for the rear boomerang. It's loaded. Heated leather, etc. 242 Select Trac. I had a 2000 4.0 QuadraTrac my son wrecked. I'm glad it's gone, the 242 hd is great. Thanks for the video without the electrical gremlin issues
But that's only because our WJ's were way ahead of our times. I even have stereo volume/change control on the back of my steering wheel.
They had so many options that were available in many other cars they even had auto wipers in the overland it’s crazy
I bought my beautiful 2004 4x4 Laredo in 2007. Still have it to this day and not looking to give up anytime soon. She only has 129K. But yes I was hoping you'd say the cam-shaft sensor! Happened to me a few months ago. Luckily, I was not on the hwy...which I hate driving on anyway.(Dallas lol). I was ready to trade it in. Luckily a good mechanic fixed it for me. Now I'm trying to find the knocking issue when I go over potholes. I already changed the ball joints, shocks and CV axles. I'll keep hunting. Maybe you've had something similar? BTW I'm about to buy those same headlight fixtures (Akkon).
EDIT: I also fixed that bad wiring in the driver side boot myself! I saved hundreds. Only spent $5 on wire nuts. haha. Great video. Thanks!
Thanks for the support man if the clunk is in rear it has to do with rear shocks bushings at frame they sell a kit to fix it aftermarket shocks seem to make noise on these all the time do you have the 4.0?
@@dylansgarage3549 Oh no. The clunk is under the driver side floor board. You can clearly feel metal on metal. Parts to check on next would be: track bar, sway bar, drag link, maybe mounts? I'm not a mech so it's frustrating when my go to my mech who can't figure it out. It's only when I go over potholes or over any moderate rough terrain. I will check those back ones (which haven't give me any trouble) after I solve the front problem....Yes 4.0 I-6.....Thanks in advance if you have any ideas of what it could be! Subbed!
@@JasnoGT I would think sway bar or sway bar end links hard to tell without hearing it or seeing it
Considering a jeep ... whole Lotta repairs . But am considering. If I get 1 among many I'll be checking back.
@@TheWizardWhiteHawk get an older one way less problems the new ones are deff less reliable
Great job what about the turn signals.
@@jhenleyhenley2882 yes can’t forget the whole stock tail light problem with brake and turn signals
Good video! Great looking WJ! 👍
@@jdw805 thank you!
Have water or fire extinguisher nearby if doing weld in rock sliders, wj s are full of foam insulation
Yea I picked it all out of my driver side rocker that would be why they rot if it were my guess lol
I am the proud owner of 2, 2004 WJs both with the 4.0.. 1 is a 4x4 Special Edition.. Quadra Trac 2.. All stock no lift anything.. Other one is 2wd but with a 5 inch lift Columbia Edition. Nice sound system as well.. bought it cheap $3K... Trying to make one Bad Ass machine out of 2 if possible... Lol... or just upgrade both and keep the Columbia Edition as a 2wd.. is it worth trying to convert the Colombia into a 4x4 ??? I have several other 4x4s to drive as well , including 2 3rd gen 4runners, and 2 jeep 4.0 XJS. 1 1991 2dr 4.0 and 1 2001 4dr 4.0 4x4.. Just hate to see that Columbia edition remain a 2wd. I really like it... Any suggestions or Advice would be greatly appreciated... Thx in advance for all your knowledge...
@@davidtrevino5211 convert it can’t be to hard to do center console shifter front diff t case drive shafts that’s really about it I can think of that you would need
Ty brother for this great video
Shall we include heating/ac issues?😢
I coulda made it so much longer lol
Fr my climate control panel went out in mine so the last owner cut up the harness and wired a light switch to the blower motor, which almost caught on fire since I’ve had it so I don’t have any heating/ac. It was 26 degrees this morning on my way to work sucks.😭😭
@@Loli.slayer wow why would that do that!
@@dylansgarage3549 I don’t know😭, but once I get some money I’m going to pull a new one from the junkyard.
I'm really glad I came across your video, contemplating on buying an 01 for $600 150k 4.0l one owner, have sputtering problem when running,this will be my project while enjoying retirement in 🇵🇷
Keep up the awesome job. 👍
@@PRProwler you won’t be disappointed if you get it for that price I just sold mine for a truck but I owned it for 10 years if you have any questions don’t hesitate to reach out to me I’ll help you out thanks for watching! Good luck with retirement
For the fan control relay issue, convert to mechanical fan.
Yes I have one but if you disconnect electrical one it will throw check engine light
@@dylansgarage3549 I did the conversion on mine about a year ago and didn't get a code (2004 Laredo 4.0). I don't remember doing anything special when I did the conversion (fuses are all the same, didn't modify any OEM wiring, don't remember resetting the computer but could make a difference?, etc.) so not sure what the culprit would be in triggering your CE light. The plug that goes to the relay on mine sits disconnected to this day, with a bit of tape over it of course lol. I have to be honest though, the fan noise is obviously much louder, but overall I haven't had any other issues. The CE light coming on is curious 🤔
@@bitsquirrel140 not to sure honestly I knew it threw a fan code high circuit when I unplugged it so I run both fans now mechanical and electrical makes ac ice cold lol
Hello! Excellent video, I was curious what your rim and tire size is? Thanks!
They are 18x12 -44 offset and 33x12.5 tires
I have all these issues, my jeep died and changed crankshaft sensor and started now with a miss like running on 4 cylinders. Please help
@@kevinchinn3823 plugs and coil rail new?
Thinkin about pickin one of these up, im going from a 13 veloster turbo and im just concerned about the reliability on these things. Mainly with sensors
4.0 if you want reliable I can guarantee you will not regret it I’ve seen some of them with 500k on original engine sensors arnt to bad of a concern if they go they are cheap and easy to change I’d look more at rust then anything cause they are old now
@@dylansgarage3549 the one im looking at has three rusty spots. The rockers, the gas tank skid plate, and the rear a arm kinda (its not super rusty but its getting there). Its also the 4.0 with selec trac
@@cadencarrithers2339 rockers are normal mine has it also you got two options rock sliders weld in ones or replace rocker panels once you remove the foam Jeep thought was a good idea to put in there it won’t happen again a arm isn’t a big deal you can replace it or if lifting you will probably be replacing it anyways gas tank skid plate also can be replaced for couple hundred bucks I have to do mine also now the good is that’s most reliable engine and the best t case they came with I’d say go for it don’t sound bad at all
I’m currently driving my 99 limited with a 4.7 and only had to replace the heater core and front suspension parts it’s got 231 k on it and only payed 800.00$ for it
@@garycraig4277 sounds like a good deal you got!
I have a 2000 Jeep Grand Cherokee 4.0 the only issue I'm having is the oil pressure. But I agree that the inline 6 is the best motor I wouldn't trade for anything
Sending unit I went threw an issue with mine had to change sending unit and the pig tail harness to it ever since been perfect
@@dylansgarage3549 I've replaced it 2 and the same problem it doesn't start showing low oil pressure until it gets hot I have a video of me going down the road at 50 mi an hour and only showing 5 lb of oil pressure. When I stopped and I'm in park and I give it gas the oil pressure goes up but at cruising speed the oil pressure will slowly go down
@@EricForehand-n6t put a mechanical gauge on it to see if it’s actually low
That's my next move I'm going to put a aftermarket gauge on it. Going run it inside so I can see if it drops or runs normal
@@EricForehand-n6t I bet it’s a gauge problem o doubt it actually has low oil pressure
Did you ever had a leak in the rear cargo compartment when it rains? I have a leak when my sunroof got clogged and i fixed it but now i have a leak on the rear cargo area i cant find where from
I used to it was the grommet for wires for hatch
I have a 2000 wj it runs fine in the winter but cuts off in the warmer months and won't restart until it cools off. But during that time when you turn the key on the gauges don't move nothing. It'll crank but won't start. Anybody else have this problem and can offer a solution?
Sounds kinda like a bad crank sensor I’d start there they are pretty cheap
Crank sensor.
Thanks you for you video..!
No problem thank you for watching!
😂 there are more than five definitely I own five jeeps at the end I said ENOUGH!!!!!!!!
Damn lol and one then that one needs a friend then they got lonely 😂
@@dylansgarage3549 1 wrangler 2 cherokee and 2 grand Cherokee 92 and 04 respectively.
good luck bro , from libya
Thanks bro
i just did my crank sensor worst job ever in the heat
@@microtechmachineshop I can imagine once you do enough it becomes easier but still sucks lol
I installed a cheap one from Amazon and ended up replacing within a week with a NAPA part which works great.
Great video but how do you have 32K likes and 2 K views?
Thank you and I only have 84 likes not 32k
Loving the comment on this video 😂😂
That fan relay is there for a 4.7 I burt my fingers on it😂
Good to know I wasn’t sure I’ve only owned 4.0
Yea it gets very hot after been driving lol
4.0 was Willies :)
Yea the old school shit lol
@@dylansgarage3549 wasn't broken:)
@@dylansgarage3549 if it ain't broken:)
@@oldprophet if it ain’t broke don’t fix it lol
@@dylansgarage3549 :)
I have a feeling there are more issues on the way for this jeep. but for a good cause lmaoooooo
Yea a lot more for my specifically 😂
@@dylansgarage3549 😂😂😂
I can think of more than 5 😂
For real 😂
@dylansgarage3549 I had every issue you mentioned except for the coils, the perch and the window issue.
@@306-fromthestix all common
Yea I’m sellin my 4.7 L
@@Freddy_with_a_AK 😂
@ bro I only got it for 3k im going to just replace the abs modual bleed the breaks and flip it make a few bucks😭it’s on a 3 in. lift kit with 33s nn it rides smooth but I think I just figured out im not a jeep guy after this road trip to Georgia
@ hey nothing wrong with making money and why you say that to small?
@@dylansgarage3549 nah I don’t mind anything lifted or slammed in general I just don’t think jeeps are for me I grew up on silverados and mustangs😭
@@Freddy_with_a_AK I love the 05 style Chevy trucks
You talk too much
😂
Good afternoon or morning what lift kit .info please and wheels nice wj. I have one y too.