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Hello erick and community i have my jeep w ith idle issues 1993 v6 grand cheroke she idle at 500rpm rough i have cleaned the iac valve and all around there and still no luck i change spark plugs i changed fuel filter i use 91 gas all the time too i change oil i change air filter i have new alternator new battery no check engine light is it posible i just have to buy a new IAC? or is it something with the distributor?
if you need to watch it in action i can make a video of it car haves 198k miles
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Start by checking for vacuum leak(s) also, have you done anything lately to the cooling system ? if air is in the cooling system it can cause drivabilty probs. try bleeding the cooling system
+++1 on the above. when first started Does the jeep ever idle up past 500 rpm?
if not try replacing the IAC after searching for vacuum leaks.thank you for the replys i will check for leaks after work and i picked up a iac from pick n pull yes it revs up to abou 2k and goes to 1k and slowlly makes its way down to 500 after the iac i got from pick n pull it seems it goes faster to 500 i will update later today
ok so i checked her for leaks no vac leaks… i made this video coming from work so you can se how she idles when i rev it at a stop just a poke it drops a little more
http://www.youtube.com/watch?v=4YyVaSnRXP4&feature=youtu.beSorry to hear that. I recommended you clean the Throttle Body. Does this Car have a distributor cap and rotor? If so replace them. Spark plug wires as well. Also clean the MAF sensor if your car has one.
[quote=”exceptionalchris” post=63170]Sorry to hear that. I recommended you clean the Throttle Body. Does this Car have a distributor cap and rotor? If so replace them. Spark plug wires as well. Also clean the MAF sensor if your car has one.[/quote]
i cleaned throttle and it does have a distributor cap will change and spark wires and update when they arrive and install
thx
To tell you the truth I didn’t see a rough idle. Then again it is hard to tell by the video. Do you have the 6 or 8 banger? Check the intake for leaks? If you have trashed motor mounts this can give the feeling of a rough idle. Lastly, not sure if I am hearing an exhaust leak, again its hard to tell. But inspect the exhaust system for cracks or leaks. Especially if it snows where you live.
hello i just installed the distributor cap and rotor denso wires and still nothing ill upload a video of were it stands my next shot will be engine mounts since im pretty sure i need one because when im on the highway and let go of the accelerator i feel a jerk or something but the other thing im going to tackle will be a distributor coil since ive heard they like to go bad on the zj’s but any help will be appreciated
sorry for bad spelling
ok here is the video now recorded today at 4:20 or so california time
im sorry are you trying to tell me that my grand cherokee inline 6 haves a chevy engine wish they stopped adding in jeeps in 1986? and my 1993 grand cherokee haves one??? what makes you think i dont know what engine i have verry disrespectful
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