2.9 High Idle and Revs

[BubbaGT57]

its a vacum leak

 

[Jspafford]

I changed out the sensor. Oddly enough the one I took out was ALL black plastic. The connector, the threads, the tip... The one I put in was grey plastic on the connector and the threads and tip were copper.

Seemed like a much nicer piece.

Fired the truck in 10 degree temps and it fired right up and idled at 850rpm for a second and then went into the warm up RPM. Then after a few minutes and it started to warm up it dropped back down to normal idle speed.

Seems to have fixed the problems. I didn't have a volt meter worth a damn, so I just replaced it..

I was beginning to wonder why my mileage had been steadily dropping. I think the sensor was running the motor too rich.

its a vacum leak

Nope, this post explains it all. The vacuum was fine. No leak.

 

[Psychopete]

So it's fixed then?

Pete

 

[Jspafford]

Yeah... That is what my last long post was supposed to explain. I guess I never came out and said it, but yes. It's fixed. It idles right at 850 or so now. I had to get used to not stalling when starting from a light. I was used to it being idled high. Starts every time so far... Knock on wood.