High Idle???

[Marauderjack]

This has happened a couple of times in the past year and I don't know why......:confused:

I started the car cold (95* ambient....cold??) yesterday and as always it "Flared" to 1800 RPM's and settled down to 1200 RPM's.:beer: I put it in gear and drove off but the shifting felt funny and the TC didn't unlock while coasting (I have my tune set up the release the TC when I get off the gas)......it remained locked during down shifts while rounding corners??:cool:

When I got to the Post Office I put it in Park as always but the idle hung at 1500 RPM's and surged to 1800 RPM's as the A/C clutch engaged!!:argue: Tapping the throttle had no effect!!:shake:

I shut it off and re-started and all was fine.....750 RPM's in Park with only about 50 RPM surge when A/C compressor engages!!:confused:

I guess my TC only disengages when the RPM's fall past 1500 or the TPS is at idle setting.....thus the TC remained locked even down to the 2-1 down shift......really felt weird!!:eek:

Maybe the IAC hung up or PCM went dumb for awhile.....any ideas??

Marauderjack:burnout:

[Aren Jay]

Garage section would know better.

[HwyCruiser]

Jack, the tc schedule is based on tp vs mph, so maybe your throttle linkage is sticking sending a higher than normal tps off-pedal. Would also explain the high idle. The IAC doesn't effect the tps so it wouldn't effect the tc unlocking.

[Marauderjack]

Thanks for the reply JD.....How ya been??

Like I said it has happened a few times but not as much as the damn stalling when putting it into Park!!:argue:

I sent my tune to Scott Beer to massage and VOILA.....no more stalling!!:bows:

I'm not going to worry about it but will check the throttle cable today!!:D

Whatcha driving now??

Marauderjack:burnout: