[Hayden12]

94 single cab, 185k miles. Bone stock except for afc live, and a new tranny.

As the title says, idle will keep climbing. Seems it only does it in the morning or when its cold (warmup for 10mins in the morning.) But it will climb up to 2k rpm if you let it.

Has a new throttle cable on it, and the idler pully was adjusted as needed. Any ideas?

 

[9412valvecummins]

94 single cab, 185k miles. Bone stock except for afc live, and a new tranny.

As the title says, idle will keep climbing. Seems it only does it in the morning or when its cold (warmup for 10mins in the morning.) But it will climb up to 2k rpm if you let it.

Has a new throttle cable on it, and the idler pully was adjusted as needed. Any ideas?

Seems like nobody has any idea why the idle would slowy raise as you describe it. Did it start doing it with the new throttle/accelerator cable? When did it start happening?

 

[YogiBayer]

After warming is it normal or higher?

 

[foresterfields40]

How’s your throttle return springs look?

 

[YogiBayer]

You still following Hayden12?

 

[Hayden12]

After warming is it normal or higher?

After truck is warm, it's fine and won't do it. Sorry this is hooked to my other email so I don't see replies

 

[Hayden12]

Seems like nobody has any idea why the idle would slowy raise as you describe it. Did it start doing it with the new throttle/accelerator cable? When did it start happening?

Randomly started happening about a month ago. New throttle cable was put on 8 months ago and has had probably 4k miles since installed

 

[Hayden12]

How’s your throttle return springs look?

Fine, nothing abnormal.

 

[NotaDem]

The only thing that can make the idle rise is more fuel.

 

[9412valvecummins]

The only thing I can think of is the injection pump itself. Govenor springs? Im guessing the idle will start low when you first start it and it slowly starts climbing.

 

[Hayden12]

The only thing I can think of is the injection pump itself. Govenor springs? Im guessing the idle will start low when you first start it and it slowly starts climbing.

You're correct.
Hmmm. I have AFC Live on it, with 3k springs.

 

[jason867]

Who made your 3k governor springs?

 

[Hayden12]

Who made your 3k governor springs?

I believe PDD
I had a shop near me install them as well. These were installed last year.