I have 1990 12 valve cummins diesel 1 ton pickup, i use it to pull my backhoe from job to job. My problem is that, a few weeks ago, i went out in the morning to start the truck and, upon starting, it was stuck at full throttle. Luckily, it shut ff by the key. I looked under the hood and could out find anything out of whack, all grounds and connections seemed to be fine and the linkage was fin too (the pedal is not stuck). Im no diesel mechanic but im hoping someone on here can tell me what the problem is. I need this truck to run because i have two jobs to do this coming week and no way to get the backhoe out to them. any help would be greatly appreciated. thanks, roy

 

read this
http://dodgeram.info/tsb/recalls/605.htm
then you might want to see if your truck falls into the recall

 

1990 didn't have the recall. sounds like your governor is stuck and your looking at a new VE

 

Could have been retrofit. Still would fall under the recall. Worth running the numbers. It's the pump that's been recalled.

 

I checked numbers for recall and my truck is not included.... thanks though, those diagrams will help alot if i have to change the pump. hey Rebel, what is a "VE"?

 

Our 1989 ~ 1993 Dodge/Cummins pickups run the Bosch rotary VE injection pump. The later trucks run the P7100 (P-pump), etc.

 

http://www.cs.rochester.edu/u/jag/vw...i/injpump.html

http://www.cumminsforum.com/forum/at...-ve-manual.pdf

 

How ironic. This happened to my truck today... but I was driving.

Truck blipped off a few times when driving. I was thinking it was just the fuel shut off solenoid wire was loose... then I remembered it was removed on this truck and I was using the pull cable. Then it went full throttle!! Truck broke free all 4 rear wheels at about 40 and rocketed around the corner. Jammed the transmission in Park, and luckily it shut down via the the pull cable.

Coasted to a stop in front of a loggers shop, and he lent me a few tools. Took the injection pump apart on in the driving snow and found the lever that pushes the fuel pin (the one on the AFC that people grind the foot on) had snapped off. I saw the pin that it fulcrums on was wedged next to the flyweights and I could not get it out with the cheesy pliers lent to me.

Hopefully it's not the same issue!! Luckily I have a parts injection pump from another issue so I will be able to fix it, but I'm assuming you don't have that luxury.

 

I believe that was what the recall was for.

http://api.viglink.com/api/click?for...13271317294683

Jim

 

Wonder if the teeth between the throttle lever and throttle shaft stripped then has the shaft stuck at wide open.

 

The VE normally starts wide open for the first rotation, maybe the governor linkage or collar are sticking.

Stanadyne pumps started having sticking throttles and exciting rides once they took the sulfur out of the diesel fuel., lubricity additives helped restore the drivability problem

 

May be something as simple as a broken governor spring.

 

My truck has had that problem. For me the throttle cable fell off. I put it back on, problem solved. Hope this helps!