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Fuel Sys. Issues

RickyD

By RickyD
in Duramax Diesel & 8.1L Big Block

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RickyD New Member

RickyD

Posted
Posted

I have done some searching here but found nothing so far related to my problem. Our fleet has a couple twin 05 3500 Dmax cab-chassis flatbeds. They have both had these problems and are starting to cost us a lot of money. According to the service guy at the dealership there is a design flaw that allows the fuel sender float in the rear tank to jam against the tank, then the transfer pump works when it shouldn't and burns out. The fix is to replace the tank and sender with an updated set as well as replacing the burned out tranfer pump. $1300+ dollars because it is out of the factory warranty. My other gripe is that we cannot have the key on at all while refueling or it screws up the computer that works the fuel gauge necessating a reflash. Another admitted design flaw that costs us $113+ every time it happens. They just say "thats the way it is and tuff luck- dont turn the key on" This is making a Ford look pretty good to me . Is it just me or are others having this problem:(

brims Senior Enthusiast

brims

Posted
Posted

If you've replaced with an updated tank already, what's the problem?

 

And it's just smart to turn the key off when refueling anyways.

RickyD New Member

RickyD

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Posted
If you've replaced with an updated tank already, what's the problem?

 

And it's just smart to turn the key off when refueling anyways.

One of these trucks had the tank replaced under warranty, now the other is going to cost us because it didn't happen as soon. I know safety dictates that the key be off and the normal drivers remember to leave the key off while refueling but sometimes others will use these vehicles also and that is when it happens. You would think they could fix this problem in an updated programming for a reflash.

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