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Caravan rough idle

Hello all,

I have read most postings regarding rough idling, but I can't seem to pin down my problem.

I have a 1992 Caravan, V6, 3.0 engine. Recently when cold (has not run long enough), it idles rough but eventually gets a little better that doesn't give a feeling that it is going to die any second, and doesn't get to a smooth idling like it used to.

I read about throttle body, but AutoZone man tells me that my car does not have throttle body, because it is EFI.

So, what else could be the cause? I just need a list of possible causes.

Thanks in advance

Mike

Reply to
ma
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I would stop going to that auto zone to start with, then I would clean the throttle body that your vehicle does have before you do anything else!!

Glenn Beasley Chrysler Tech

Reply to
maxpower

Reply to
GUNNER

Thanks Gentlemen for kind replies (applies to the next poster too).

I have good mechanical aptitude, therefore I am confident I can clean it myself, so please just tell me its approx location. Like is it right where intake air hose connects to EFI housing with a "T" clamp?

Do I need any seals or gaskets to replace once I take it apart? I promise I won't buy it from AutoZone!

Thanks again. Mike

Reply to
ma

The EFI housing that you are refering to is a intake plenum. Yes the thing that the air hose attached is your throttle body. Remove that and get your self some brake parts cleaner and give it hell. I use a good toothbrush to scrub it out also, but make sure not to use something that is old and will lose bristles. Remove the AIS motor and clean the piston seat also. Gunk gets in there and wont let that seat properly. You will need a gasket. Yours will likely break and if it doesn't replace it any way. Go to your dealer and get the gasket. They should have the right one and its only a couple of bucks. Autozone is only good for oil and chemicals. The brake parts cleaner they have is wonderful.

Reply to
GUNNER

Thanks. Do I need to bleed fuel pressure? Or I shouldn't mess with the fuel side of it?

Mike

Reply to
ma

It has nothing to do with fuel. It is the incoming air going into the engine.....I would suggest using a throttle body cleaner over brake cleaner.

Reply to
maxpower

Thanks, will do!

Mike

Reply to
ma

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