Good info here! I actually had mine idle very high before when I had the battery disconnected. I reset the computer and all went back to normal. Thanks ED!
Thanks for watching, Steve! Very valid point. Sometimes a computer reset is all that's needed. And sometimes neither that nor a good cleaning will fix it and a new part is needed. These jeeps are so fickle! At least this part is cheap if it needs to be replaced.
We just got the exact same model TJ as yours and it’s out first Jeep ever. What a chore, but fun. Thank you for all your videos. Our Jeep is a daily driver so I want to be sure we take care of her. I’ll have questions, in sure
That's awesome, Christel! It's certainly been a fun (most of the time) adventure to get and keep the ol' TJ in good order but it's been worth it! Thanks for watching.
Dude thanks! I had the same issue with it idling high for a few weeks now and I was about to buy a new throttle body but i decided to try this first. I didn’t apply nearly as much throttle body cleaner as you did but it took a minute and it finally started to run at normal rpm’s
Question So I have aeak in my CCV that I knew about. Putting it off since I put about 3000 miles a year on the TJ. Anyway, on a longer trip than I would have liked I had my cruise control give out. Everything seemed fine other than no cruise. Next thing is an engine light, and a little bit more rpms than I'd like. I parked it to look under the hood. It's was filthy I did some stuff in the back country with it so lots of dirt. Other than that and a bit of oil coming from my valve cover everything was normal. I turned it on and it revved up pretty high in park. It was Sunday in the middle of nowhere so I just drove it. I drove 100 miles the rpms where not that out of the ordinary, oil pressure and temp where where they should be, in fact it sounded great. It no longer revs in park either. So my theory is clean the throttle body, because losing cruise isn't something a small ccv valve leak should do just points to throttle body. However, my TJ not being a spring chicken I don't want to do it with the engine running. I may just take it out and clean it. If you have any ideas about what's happening with the TJ that could cause the above issues I'd appreciate it.
Let me tell you right up front that I don't exactly know the answer but maybe someone else will see your comment and have more ideas. Can you tell us the year and engine of your TJ? You mentioned an engine light. Did you check the actual engine code(s) that it was giving you - what were they? My TJ doesn't have cruise control so I can't really speak to that aspect - I don't have any familiarity with the cruise setup on these TJs. It sounds like cleaning the both the throttle body and the valve cover could only help you. Here's a video I did on removing and cleaning the valve cover: ruclips.net/video/j5zIUGfv_p8/видео.html If you go the route of cleaning the valve cover, I'd recommend not removing the stanchions/posts inside. They have gaskets with them and I can't find replacements online. Be sure to replace the valve cover gasket - there's a link to one in my valve cover removal video description. You can replace the CCV valve/elbow as well, here's a video on that: ruclips.net/video/ikKN-s9inJ8/видео.html If you go the route of pulling the throttle body off, it's pretty simple (on my 2.5L) but keep in mind that there's a gasket between the throttle body and intake manifold that you'll want/need to replace. I talk a bit about that in this video: ruclips.net/video/CyohCUxEYHk/видео.html (link for the gasket is in that video's description). Finally, I also found this forum link that might give you additional things to consider: www.wranglerforum.com/threads/ccv-and-fresh-air-inlet.34737/ Good luck tracking this down and thanks for watching, Phillip!
@@CarbonsDIYGarage it's a 2000 4L I6 TJ. I'm 90% sure it's the throttle body. That's the only thing I can think of that correlates with the cruise control. Maybe a vacuem leak could cause that, but either way with the milage I gotta replace the ccv valve and clean the throttle body anyway. Thank you, hopefully someone does have ideas, but the more I think about the more I point-to-point the throttle body. There's a manner of other problems I will address later, as it is up there in age.
@@CarbonsDIYGarageit was throttle body position sensor issue. It was dirty. Bought a new one, but issue resolved itself after a wipe down. Taking out throttle body in the Fall. CCV/PCV replaced.
Sometimes I get a red lightening bolt on the dash and it will rev up and then acts fine again, I’ll turn it off and back on and the light is gone. Would the throttle body being dirty cause that possibly?
Did you also replace the TPS? - as my TJ behaves the first 1/2 mile like an old donkey, I plan to replace TPS, but I'm not sure about the adjustment... btw: I just saved your TJ playlist. I have the same model and I'm sure I can learn a lot from you!
I haven't replaced the TPS (yet), so don't have any tips to share (yet). I'm sure it'll come soon enough - seems like I'm on a quest to replace everything but the body... Thanks for watching and I hope these videos help - if nothing else "what not to do." :)
Hi! I have a 99 Jeep TJ 4 Cylinder, and currently I'm experiencing an issue we're if the motor is anywhere near 1,000rpm the vehicle just wants to die and has a rough and loopy idle. If I keep it above that, the motor feels smooth and has no issues. Would you believe this is the issue?
I'm going to be quick to confess that I've had problems with this type of thing and am not an expert. Take my input with grains of salt! I don't remember, but @ForceBuilt might have a video or two on this type of thing as well. In my research on this type of thing, it seemed to be general agreement that the problem might be dirty throttle body, bad/leaking gasket between throttle body and intake manifold, dirty or dying idle air controller, or manifold absolute pressure (MAP) sensor. All of those parts are generally cheap; I ended up throwing those parts at it and I don't know what truly fixed it for good. First air controller replacement I got was bad, which didn't help my quest. I think my original MAP was good and I didn't need to replace it. I think my suggestion would be to clean the throttle body and IAC first and see how it goes. If you take the IAC off, inspect the o-ring on the IAC (and don't lose it). If o-ring is bad/nicked, that might be your problem. Maybe next go after the gasket, which is cheap and if it's original is easily suspect. After that, the IAC, then the MAP? If you're not getting codes, it's hard to say. And it could be none of those things. Sorry, lots of words but not really any help. Good luck with it, though!
Hi, u have to remove the air controller, then clean it & don't spray the throttle boy while the engine is working because throttle body cleaner is nonflamable and might damage the engine
![BLACK BAG - Official Trailer [HD] - Only in Theaters March 14](http://i.ytimg.com/vi/Du0Xp8WX_7I/mqdefault.jpg)
Check out the video description for extra info, parts, tools, torques, and any updates.
Good info here! I actually had mine idle very high before when I had the battery disconnected. I reset the computer and all went back to normal.
Thanks ED!
Thanks for watching, Steve! Very valid point. Sometimes a computer reset is all that's needed. And sometimes neither that nor a good cleaning will fix it and a new part is needed. These jeeps are so fickle! At least this part is cheap if it needs to be replaced.
We just got the exact same model TJ as yours and it’s out first Jeep ever. What a chore, but fun. Thank you for all your videos. Our Jeep is a daily driver so I want to be sure we take care of her. I’ll have questions, in sure
That's awesome, Christel! It's certainly been a fun (most of the time) adventure to get and keep the ol' TJ in good order but it's been worth it! Thanks for watching.
Dude thanks! I had the same issue with it idling high for a few weeks now and I was about to buy a new throttle body but i decided to try this first. I didn’t apply nearly as much throttle body cleaner as you did but it took a minute and it finally started to run at normal rpm’s
@@95TacoCat Glad the video helped you out. Thanks for watching.
The same symptoms I have right now. In the middle of replacing idle controler 😅. Will clean the throttle and let you know 😊
Question So I have aeak in my CCV that I knew about. Putting it off since I put about 3000 miles a year on the TJ. Anyway, on a longer trip than I would have liked I had my cruise control give out. Everything seemed fine other than no cruise. Next thing is an engine light, and a little bit more rpms than I'd like. I parked it to look under the hood. It's was filthy I did some stuff in the back country with it so lots of dirt. Other than that and a bit of oil coming from my valve cover everything was normal. I turned it on and it revved up pretty high in park. It was Sunday in the middle of nowhere so I just drove it. I drove 100 miles the rpms where not that out of the ordinary, oil pressure and temp where where they should be, in fact it sounded great. It no longer revs in park either. So my theory is clean the throttle body, because losing cruise isn't something a small ccv valve leak should do just points to throttle body. However, my TJ not being a spring chicken I don't want to do it with the engine running. I may just take it out and clean it. If you have any ideas about what's happening with the TJ that could cause the above issues I'd appreciate it.
Let me tell you right up front that I don't exactly know the answer but maybe someone else will see your comment and have more ideas. Can you tell us the year and engine of your TJ? You mentioned an engine light. Did you check the actual engine code(s) that it was giving you - what were they?
My TJ doesn't have cruise control so I can't really speak to that aspect - I don't have any familiarity with the cruise setup on these TJs.
It sounds like cleaning the both the throttle body and the valve cover could only help you.
Here's a video I did on removing and cleaning the valve cover: ruclips.net/video/j5zIUGfv_p8/видео.html
If you go the route of cleaning the valve cover, I'd recommend not removing the stanchions/posts inside. They have gaskets with them and I can't find replacements online.
Be sure to replace the valve cover gasket - there's a link to one in my valve cover removal video description.
You can replace the CCV valve/elbow as well, here's a video on that: ruclips.net/video/ikKN-s9inJ8/видео.html
If you go the route of pulling the throttle body off, it's pretty simple (on my 2.5L) but keep in mind that there's a gasket between the throttle body and intake manifold that you'll want/need to replace. I talk a bit about that in this video: ruclips.net/video/CyohCUxEYHk/видео.html (link for the gasket is in that video's description).
Finally, I also found this forum link that might give you additional things to consider: www.wranglerforum.com/threads/ccv-and-fresh-air-inlet.34737/
Good luck tracking this down and thanks for watching, Phillip!
@@CarbonsDIYGarage it's a 2000 4L I6 TJ. I'm 90% sure it's the throttle body. That's the only thing I can think of that correlates with the cruise control. Maybe a vacuem leak could cause that, but either way with the milage I gotta replace the ccv valve and clean the throttle body anyway. Thank you, hopefully someone does have ideas, but the more I think about the more I point-to-point the throttle body. There's a manner of other problems I will address later, as it is up there in age.
@@CarbonsDIYGarageit was throttle body position sensor issue. It was dirty. Bought a new one, but issue resolved itself after a wipe down. Taking out throttle body in the Fall. CCV/PCV replaced.
@@phillipgrace8190 Glad you figured it out and got it back in good order!
I took the whole throttle body off. It's easy and can be cleaned easier. Make sure you get a new gasket.
I must clean mine every year because it will get to the point where it won’t idle at all and stalls constantly.
Remove it and clean it thoroughly. Get a new gasket and you should be good to go for a while.
You may well have an induction leak between the air filter and the tnrottle body.
same procedure for cleaning the valves but you have PFI right? so no added bonus.
Sometimes I get a red lightening bolt on the dash and it will rev up and then acts fine again, I’ll turn it off and back on and the light is gone. Would the throttle body being dirty cause that possibly?
Did you also replace the TPS? - as my TJ behaves the first 1/2 mile like an old donkey, I plan to replace TPS, but I'm not sure about the adjustment...
btw: I just saved your TJ playlist. I have the same model and I'm sure I can learn a lot from you!
I haven't replaced the TPS (yet), so don't have any tips to share (yet). I'm sure it'll come soon enough - seems like I'm on a quest to replace everything but the body...
Thanks for watching and I hope these videos help - if nothing else "what not to do." :)
Thanks Dude! 👍🏾🇺🇸
Thanks for watching!
@@CarbonsDIYGarage hey man you got it. Least I could do was hit the sub button!
Take care Carbon. 🍻
Hi!
I have a 99 Jeep TJ 4 Cylinder, and currently I'm experiencing an issue we're if the motor is anywhere near 1,000rpm the vehicle just wants to die and has a rough and loopy idle.
If I keep it above that, the motor feels smooth and has no issues.
Would you believe this is the issue?
I'm going to be quick to confess that I've had problems with this type of thing and am not an expert. Take my input with grains of salt! I don't remember, but @ForceBuilt might have a video or two on this type of thing as well.
In my research on this type of thing, it seemed to be general agreement that the problem might be dirty throttle body, bad/leaking gasket between throttle body and intake manifold, dirty or dying idle air controller, or manifold absolute pressure (MAP) sensor. All of those parts are generally cheap; I ended up throwing those parts at it and I don't know what truly fixed it for good. First air controller replacement I got was bad, which didn't help my quest. I think my original MAP was good and I didn't need to replace it.
I think my suggestion would be to clean the throttle body and IAC first and see how it goes. If you take the IAC off, inspect the o-ring on the IAC (and don't lose it). If o-ring is bad/nicked, that might be your problem. Maybe next go after the gasket, which is cheap and if it's original is easily suspect. After that, the IAC, then the MAP? If you're not getting codes, it's hard to say.
And it could be none of those things.
Sorry, lots of words but not really any help. Good luck with it, though!
Hi, u have to remove the air controller, then clean it & don't spray the throttle boy while the engine is working because throttle body cleaner is nonflamable and might damage the engine
Don’t know if you’ve had a 4.0 before but you have to clean it while it’s at idle