Finding Diesel
Hi folks. We purchased our first diesel truck in February. A 2014 Sierra 3500 HD. I've been reading a lot about diesel trucks as it pertains to pulling a trailer, but what I haven't found is info...
Forum Discussion
The Texan wrote:
And that is why I always try to run on the TOP ½ of the tank ....
There is another great reason for that.
Keeping the fuel cooler.
Especially considering the CP 4.2 Bosch pump used in Ford and GM diesels.
Mind you, it also applies to the Bosch CP 3 in the Cummins, as all of these return fuel to the tank.
But one of the reported causes of the mystifying failures of the Bosch CP 4.2 pump was owners running too low a fuel level in their tanks, and the remaining fuel heating up as it was returned from the pump back to the tank.
Mind you, as a former owner of a Ford with the CP 4.2 pump, I eagerly read as much as I could find about problems. Seems no one really knows, although a design flaw by Bosch is considered the biggest suspect.
But research has shown that many of the failures happened during or just after the hottest months of the year, and low fuel tank levels resulting in diesel fuel becoming heated was part of the problem.
