I have a 2000 Durango with about 69,000 miles on it and for the past few months I've been having issues with my idle. WheneverI put the car in park,the idle jumps up to 1000 rpm's instead of staying at the usual 600 rpm's. At times it would fluctuate and if I would rev the gas it would go back down to 600, now itwill no longer godown whenI rev the car.I know it's not the idle motor, that was just replaced and it's not due to any kind ofcarbon build up anywhere sinceI just had it all cleaned out. My point is that I work at a Dodge and Chrysler dealer and the guys here are having trouble figuring out what it could be. If anyone can give me any help or any possible solution,that would be awesome!!! Thanks!

 

I had the same problem with a customers d in my shop remove the air intake above the the throttle body open throttle body look down the intake with a flash light if there is excessive oil on the bottom of the intake you need to replace the intake gaskets and the lower intake gasket there isyour vaccum leak

 

Thanks!! And just in case that may not be the problem, do you have any other suggestions as to what it could be?

 

is there a engine light on? if not check for alternate vacumm leaks.. until the first suggestion is done I really cant give you any other recomendations

 

the engine light is not on. one of my tech's checked it out and there is no oil in the intake.

 

If the intake checks out good and you are not leaking oil. Try cleaning the IAC that is on the back of the throttle body and if that does not solve this, try replacing the Throttle position sensor located on the driver's side of the throttle body.

Would not hurt to inspect and change out the plugs, wires, cap and rotor if it is time to do it.