I have a 2003 Duramax. Having to change fuel filter every six to eight weeks. Could I be having fuel pump problems??

Asked by Apr 29, 2015 at 12:43 PM about the 2003 Chevrolet Silverado 2500HD 4 Dr LS 4WD Crew Cab SB HD

Question type: Maintenance & Repair

I'm having to change fuel filter quite often. Runs good, go out the next morning cranks
good but it won't start. Change and prime the fuel filter cranks right up. Then another six
to eight weeks have to repeat the process. What could happening???

3 Answers

298,805

Something doesn't sound right. Is the filter actually getting clogged up? Electrical issue? Weak fuel pump?

No electrical issues. Filter not clogged up, but as soon as I switch the filter it starts right up. One thing I've noticed the last couple times it's happened, I feel a vibration in the cab. I've already got it started today and the vibration is gone.

Take your haND pump apart that's on your fuel filter housing its held on by 3 screws .. inside there is a spring and a ball and it's might of got full of dirt somehow ,,, had the same problem hope it helps!!

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