Truck dieing at idle

[gatorowned]

Started about a week ago. Took it in for an oil change and when I picked it up...I noticed that when I came to a stoplight or any stop at all...the idle speed drops to 500 (instead of the normal 750) then quickly drops to 250 and then dies. If I stay on the throttle a little...it's fine. And while I am driving...it is totally fine. But if I let off the throttle for even a second...it dies. I got home...pulled the battery cables and held together to reset PCM...and drove it around...and truck seemed to be back to normal. No issues. Until this morning....it started doing it again. Any ideas? I tried doing a thread search...but no luck.

 

[Brat]

It sounds like a bad TPS.

 

[gatorowned]

I would say that too...but I just replaced it 2 months ago.

 

[hawk02]

OE or aftermarket??

 

[fastestbrickonearth]

I would say aic sensor. Air intake control sensor keeps your motor running when your off throttle and blade is closed

 

[VenomTruck]

Idle air control valve, might wanna take it out and clean it really good. Takes 10 minutes

 

[gatorowned]

I replaced it with a oem one ($70) from Dodge 2 months ago. Decided to go with aftermarket this time... so I just ordered one from Autozone ($23)....how weird is that. Cleaned IAC with a some seafoam... goo to go!!!!! No issues. Thanks guys:burnout:

 

[SRT-10 RAM VIPER]

I think its the tps sensor

 

[fastestbrickonearth]

Idle air control valve, might wanna take it out and clean it really good. Takes 10 minutes

Tree'd you

 

[NVR2OLD]

Started about a week ago. Took it in for an oil change and when I picked it up...I noticed that when I came to a stoplight or any stop at all...the idle speed drops to 500 (instead of the normal 750) then quickly drops to 250 and then dies. If I stay on the throttle a little...it's fine. And while I am driving...it is totally fine. But if I let off the throttle for even a second...it dies. I got home...pulled the battery cables and held together to reset PCM...and drove it around...and truck seemed to be back to normal. No issues. Until this morning....it started doing it again. Any ideas? I tried doing a thread search...but no luck.

My truck was doing the same thing and I put in a new IAC valve and also two new upstream 02's.

 

[Slitherbeast]

My truck was doing the same thing and I put in a new IAC valve and also two new upstream 02's.

did that fix it? :dontknow:

 

[NVR2OLD]

did that fix it? :dontknow:

Yes it fixed the problem and it was also running way to rich, which gave a PO174 code engine to lean caused by bad upstream 02 sensors.