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View Full Version : Delayed Idle Issue



Steigs
12-08-2004, 06:43 PM
Start the Jeep up in the morning, idles normally. I get about 5-10 mins down the road and stop at a light and it randomly revs about 2-300 rpm higher, kinda like if you were feathering the gas as if to race the guy next to you. It stops doing this maybe another 5 mins or so down the road. Any ideas? This is on a 93 4.0

TIA

Steigs
12-11-2004, 04:13 AM
Bueller?

I'm just asking here 'cause it seems like it could be sensor related and I'm not sure which sensor (if any) failing would cause this.

OverkillZJ
12-11-2004, 12:30 PM
TPS, IAC would be my bet.

Steigs
12-11-2004, 06:08 PM
I'll check those, thanks

93ZJ
01-16-2005, 03:46 AM
Mines been doing this same thing for quite a while. Cleaned out my IAC and pretty much the whole dam TB. Didn't go away. Recently I pulled some engine codes and they point to my o2 sensor ... Haven't gotten around to buying a new one or anything ... but you might wanna check that too, it could be the culprit!


Scott

edit: I have a 5.2 so it could be completely unrelated?