When at operating tempature the engine will stall and the RPM's will drop to 500, than it will surge to 1100 RPM to keep from killing than back to 750 RPM. When it's not doing that at idle it will continously flextuate about 30 RPM, not to bad but it's not right. Brought it to a dealer and they didn't pick up any codes. They suggested that I have the injuctors cleaned, but didn't know if that would fix it. Anyone ever had this happen to them and what did you do to fix it? Please e-mail me if you can bl544@yahoo.com

 

Hi Dodepops.

You have a private message.

 

We have a truck here doing the same prob. Did you find anything? HELP! Dealers are clueless! and want to throw parts at it.....

 

Sounds like an idle speed governor problem to me.

Check your sensors and wiring connectors in the idle circut (possibly your accelerator pedal as well).

Also, will it run and not die if you keep your foot on the throttle and not let it "idle"?

 

Man...i dont know...the cust wound not stay long enough to let me try some stuff. It has 176,000 Miles and not even a year old! It is a runner........money money....

 

This is what I have done so far! Since the dealer felt it was dirty fuel that fouled the injectors, so I ran the tank close to empty. Went to a truck stop and filled it (high fuel turn over), took 33 gallons and added Diesel Kleen. After driving 200+ miles it's idlling correctly. Well for the moment anyway. If it starts doing it again I'll post a up date. Thanks for all the imput. PS: A dealer tec did tell me that a regulator valve in the fuel pump could be causing this problem and if so the pump would have to be replaced.