Re: Information share, 1999 - 2001 FTs
Reply #27 –
We had the Winn 20/20 on our '02. It is the sort of "glass" fuel filter assembly on the back of the engine. Built into the Winn is a fuel assist pump. The power for that pump comes from a little black box with 2 buttons that is located at the top of the engine compartment. One button is for "Purge" and the other is ?? Our little black box failed, and the fuel assist pump then had no power. We started to chug and buck and cough anytime we went up a grade or the engine needed extra fuel, because it could not suck enough through the dead pump. The easy fix (per the Cummins manual) is a new armature that bolts exactly where the old one holding the Winn presently sits, and the installation of a simple water separating fuel filter in place of the glass gizmo. Easy, cheap fix ... expensive diagnosis when you are stuck in the middle of New Mexico with a lot of vague symptoms. If this is what you are thinking of replacing, I would certainly agree.