Attention: TDR Forum Junkies TP replaced by a dealer under warranty following failure and break down on the road 3,700 miles back at 62,700 miles. The new pump showed 13# of pressure at idle, never less than 7# running wide open under full load at high RPM pulling a 11K 5th wheel travel trailer up a mountain. Yesterday, I noted pressure of 6# at idle with what I would describe as nearly constant fluctions between 6# & 10# that seem to have no relationship to what the truck is doing - this is in an unloaded condition. It seems that accelerating from idle tickles the pump to increase pressure - this is the EXACT OPPOSITE of the "normal" operation I have noted since installing the guage over a year ago.
Sensing an iminent TP failure based on what I have read here, I took the truck to a dealer. They did a flow test. Apparently neither Dodge or Cummins seems to care about pressure or pressure fluctuations. The truck passed the flow test. I was told that it was stupid to have a FP guage because all it did was to cause unnecessary worries and trips to the shop. I told them I thought the purpose of the guage was to alert me to a problem before I broke down on a dam&*d interstate on a weekend night 100 miles from a dealership with the trailer. I told them that there are hundreds of posts on this forum RE TP nightmares - I told them that the system design was faulty and that DC knew it. The service writer told me that in ten years of selling Cummins engines, they had only seen one TP failure. This is one of the largest Dodge dealers in GA
My questions are, should I put a TP & the tools to replace it on board? Should I go ahead & replace the TP on my own disregarding my warranty coverage? Or should I rest comfortably and ignore everything I have read here? Or should I start a cash pool RE how much longer this thing will last?
Final question - I have never read anything here about sending unit or guage failures. Is this something that I should be looking into?
Sensing an iminent TP failure based on what I have read here, I took the truck to a dealer. They did a flow test. Apparently neither Dodge or Cummins seems to care about pressure or pressure fluctuations. The truck passed the flow test. I was told that it was stupid to have a FP guage because all it did was to cause unnecessary worries and trips to the shop. I told them I thought the purpose of the guage was to alert me to a problem before I broke down on a dam&*d interstate on a weekend night 100 miles from a dealership with the trailer. I told them that there are hundreds of posts on this forum RE TP nightmares - I told them that the system design was faulty and that DC knew it. The service writer told me that in ten years of selling Cummins engines, they had only seen one TP failure. This is one of the largest Dodge dealers in GA
My questions are, should I put a TP & the tools to replace it on board? Should I go ahead & replace the TP on my own disregarding my warranty coverage? Or should I rest comfortably and ignore everything I have read here? Or should I start a cash pool RE how much longer this thing will last?
Final question - I have never read anything here about sending unit or guage failures. Is this something that I should be looking into?
:-laf . I asked how to handle return of the other pump and was told to throw it away. 4 days later I received the check. Oh, yea, Cummins Corp. can't/doesn't handle customer problems HA!
