Jeffry Seldomridge
08-17-2004, 01:14 PM
On June 1, 2004 I brought our 1994 Dodge Dually Cummins truck in to get the fuel interruption fixed. The local dealer said it was the fuel pump module located in the gas tank that was faulty. You fixed it and charged $575.00 for the repair. With less than 600 miles driven on the truck since, the problem returned and this time with a full tank of diesel.
This has been a long time problem with this truck. It first happened in February of 1999. Took it into your shop and it was repaired at over $600.00 cost. I think that it is becoming obvious that something more is at fault other than the gas tank fuel pump module. When it happened again last Tuesday, August 10, 2004 it was very hot and the trembling began shortly after I turned on the air conditioner.
The symptoms:
1. At full highway speed, three seconds of acceleration and four seconds of deceleration (with pronounced engine vibration) accompanied by very noticeable valve or tappet noise. This pattern repeated very regularly until you stopped and then restarted. If you pushed in the clutch during the three seconds of deceleration, the engine almost reached redline before slowing down.
2. When I tried to stop the truck and pushed in the clutch at low speeds making sure that the above-mentioned cycle was in the deceleration mode, the engine died.
3. The longer I waited with the engine stopped (cooling down) the longer it took to start this fuel starvation problem again. After sitting for a couple of minutes, the truck would always restart with longer than average turnover and it would keep an idle. After 5 to ten miles of highway travel, the problem fuel shortage cycle would begin again.
4. All of these troubled times we were hauling a stock trailer.
My Conclusion:
This is the third gas tank fuel pump module to be in this truck including the original. We have spent over $1200 to have it repaired and it has not worked. It seems to me that the very regular acceleration/deceleration cycle would indicate a computerized problem either related to the fuel pump or the engine computer or both. It also happens when the engine has warmed up and under load.
As of today the local dealer in Carson City still can't find the problem. Can't anyone figure out what is going on?
Jeff Seldomridge
This has been a long time problem with this truck. It first happened in February of 1999. Took it into your shop and it was repaired at over $600.00 cost. I think that it is becoming obvious that something more is at fault other than the gas tank fuel pump module. When it happened again last Tuesday, August 10, 2004 it was very hot and the trembling began shortly after I turned on the air conditioner.
The symptoms:
1. At full highway speed, three seconds of acceleration and four seconds of deceleration (with pronounced engine vibration) accompanied by very noticeable valve or tappet noise. This pattern repeated very regularly until you stopped and then restarted. If you pushed in the clutch during the three seconds of deceleration, the engine almost reached redline before slowing down.
2. When I tried to stop the truck and pushed in the clutch at low speeds making sure that the above-mentioned cycle was in the deceleration mode, the engine died.
3. The longer I waited with the engine stopped (cooling down) the longer it took to start this fuel starvation problem again. After sitting for a couple of minutes, the truck would always restart with longer than average turnover and it would keep an idle. After 5 to ten miles of highway travel, the problem fuel shortage cycle would begin again.
4. All of these troubled times we were hauling a stock trailer.
My Conclusion:
This is the third gas tank fuel pump module to be in this truck including the original. We have spent over $1200 to have it repaired and it has not worked. It seems to me that the very regular acceleration/deceleration cycle would indicate a computerized problem either related to the fuel pump or the engine computer or both. It also happens when the engine has warmed up and under load.
As of today the local dealer in Carson City still can't find the problem. Can't anyone figure out what is going on?
Jeff Seldomridge