1990 dodge diesel is full-throttle at start!
#1
1990 dodge diesel is full-throttle at start!
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
#4
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#5
what is "ve"
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"?
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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
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.
#9
Administrator
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.
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.
http://api.viglink.com/api/click?for...13271317294683
Jim
#11
Administrator
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
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
#12
Registered User
May be something as simple as a broken governor spring.
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