RPM not super steady?

[superacerc]

Sorry bout that. I saw a bunch of A's and C's together and missed IAC. I've never cleaned one before. Any tips? I take it it's on the throttle body.

[Matt]

yup. easiest thing to do it look up your IAC on a parts website so you can see a picture of it (if you dont know what it looks like)... they're normally very easy to get to.

To clean it you can fill the ports up with carb cleaner/gum cutter/etc... let it sit for ~15 minutes.... dump it out... refill and let it sit for another 5-10 minutes.... then spray the hell out of it.... let it dry and reinstall. Sometimes this work and clears up the issues for a long time, other times it works for just a few days and the symptoms come back (in which case you'd just order a new one).

[superacerc]

Roger! I'll get on it this weekend. Thanks guys!

[Gulf550]

Hey just to add my .02 pennies, had the same problem and it was the throttle position sensors. It's mounted right next to the IAC.

[superacerc]

Hey patrick! Thanks. What did you have to do to it? Been a long time.

[Gulf550]

Yeah it's been awhile, savannah is still the same. There is a new atv park, big nasty atv, that just opened up and there allowing jeeps and trucks there now. It's about 1600 acres. Next time your in town we'll have to check it out.

It was kinda crazy for the longest time I was watching my RPMs flucuate after starting the jeep, but after driving it would be fine. Well as time went on it stated doing it all the time. First start up, stopped in traffic, when ever. I read on the other forum where another member had the same problem, everyone kept saying IAC, but he came back and said it was his throttle positon sensor. Since the throttle position sensor was the cheapest I went with that. I believe it's only held in with 2 torque bits or star bits and electrical connector. It was a pretty easy fix.

[The_War_Wagon]

I've thought my idle tended to 'wander' a bit myself! I was actually turning a sharp corner today in a heavy rain, and it just about died on me - first time THAT'S ever happened (I mention the sharp turn, because it's a foot off the pedal manuever, and the rainfall, just in case something is getting "moist," that SHOULDN'T)!

I believe the cold idle is set at 800 rpm on the 285; because this is Pittsburgh, and because of my previous experience with other V-8 engines in cold climates, I bumped the cold idle to 950 rpm, which doesn't really do ANYTHING when you're in gear, but it does warm the truck a little faster when you idle it on cold days!

I WILL try cleaning the IAC with a little Sea Foam tomorrow though - before the cold weather settles in again!

[superacerc]

Yeah it's been awhile, savannah is still the same. There is a new atv park, big nasty atv, that just opened up and there allowing jeeps and trucks there now. It's about 1600 acres. Next time your in town we'll have to check it out.

It was kinda crazy for the longest time I was watching my RPMs flucuate after starting the jeep, but after driving it would be fine. Well as time went on it stated doing it all the time. First start up, stopped in traffic, when ever. I read on the other forum where another member had the same problem, everyone kept saying IAC, but he came back and said it was his throttle positon sensor. Since the throttle position sensor was the cheapest I went with that. I believe it's only held in with 2 torque bits or star bits and electrical connector. It was a pretty easy fix.

I'd love too. I'll also check out that sensor. I miss the old place.