I drive an '04 3500 Dually that has 9974 miles on the clock. It also is equipped with a full Banks kit and triple gauges on the A Pillar. Last week , while driving using heavy throttle and the engine pulling hard, there was a severe engine stutter. This was not a miss fire, it was like no power at all for maybe 1 revolution. I lifted my foot. No error codes. Engine completely recovered and the truck drove as normal. I tried the same thing again, no problem. On Saturday, using heavy throttle again I saw the fuel pressure gauge drop from its normal 6 PSI to 2 PSI and I lifted my foot and the pressure immediately returned to 6 PSI. Sunday I changed the fuel filter and all is normal again. The observation is this. Had I not had the fuel pressure gauge installed, I could have easily trashed the high pressure common rail pump by allowing it to cavitate. There apparently is no low fuel pressure detection with this truck. Undoubtedly, this is the cause of so many pump failures we all hear about. So BEWARE. We all know periodic replacement of fuel filters is not sufficient to avoid this problem. It only takes one bad tank of fuel to clog the filter. I highly recommend the installation of this gauge and a spare filter under the seat. Mine just paid for itself in spades. Steve
- posted
18 years ago