I have an 01 Silverado 2500 HD is there any way to prove the fuel pump is bad without actually removing it

Asked by Sep 29, 2015 at 07:13 PM about the 2001 Chevrolet Silverado 2500HD LS Extended Cab 4WD

Question type: Maintenance & Repair

Trying to prove fuel pump is defective without having
to pull the tank or bed off

3 Answers

76,335

Need a fuel pressure gage, check fuel pressure, should be 56 to 62 lbs.

3 of 3 people found this helpful.
76,335

Make sure the fuel filter is clean, new, and there should be what they call a Schrader valve, pore, on top of the intake where the fuel line come into, hook up the pressure gage at this point.

3 of 3 people found this helpful.
72,495

Spray some starting fluid down the throttle body and try to start it. It should run a few seconds on the starting fluid. If so, it's not getting fuel. If not, check for spark. If you have spark and fuel but it still won't run, do a compression test. If all cylinders test low or zero, it's jumped timing. HTH. -Jim

3 of 3 people found this helpful.

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