car revs up by it self....

[kayross27]

My 95 started revin up while its idling.. it doesnt go really high though.. it never used to do that.. any one know what the problem might be?

[ggcatt]

Could be leaking inlet manifold gaskets. Mine did the same thing, but rev-up was erratic. Cost me $500 to repair, now runs great.

[beyondloadedSE]

is it the V6 or 4 cylinder?

[kayross27]

its a 4 cylinder

[Car Pal]

turn the climate control to off and see if it goes away.

[kayross27]

Ok, now the stupid thing will really rev. Last night i was at a drive thru and it did it once. the car was just in idle and all of a sudden it did it, then the car was fine the rest of the night. i got up early this morning and drove maybe 40 miles north and it ran fine the whole time then leaving the place i was at i was able to keep my foot off of the gas and the car went like 10 mph by it self, which is really weird, usually i have to baby it when im going slow. then i stop by safeway and when i turn the car on again it revs up really high ( i dont have a tach so i dont know how high) for 10 seconds or so then laid off and when i put it in gear to leave the parking lot i had to hold the brake down instead of pushing the gas... oh yeah, then the check engine light came on. about 30 miles down the road heading home all of a sudden it kinda kicks, like when you slam the gas hard it jumps to catch up or w/e but not quite so hard, then went like that for a few seconds, dropped off, then the light went off. then it did it 2x more then the light came back on. I got home, turned the car off and on then it reved way up again...it does it ever time i turn it on.. any ideas?

manual '95, 100300 or so..

[beyondloadedSE]

I would guess the hanging rpm's is being caused by a sticking iac valve.