Fuel pump bad - 2003 5.3L
January 18th, 2010, 10:03 AM
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Fuel pump bad - 2003 5.3L
Hi;
Truck is hard to start at first, starts quickly at 2nd attempt. Fuel pressure gauge shows ~20 psi when the key is first turned on; get 50 psi after turning key off and then on again. However, pressure drops quickly to ~10 psi as soon as you hear the pump turn off. So, we'll replace the fuel pump assembly (the gauge is erratic, not accurate at upper 1/2 of tank volume).
Any recommendations on pump assembly mfr - Carter? Delphi? Anyone know what GM uses - I've heard it was Delphi.
Thanks.
Truck is hard to start at first, starts quickly at 2nd attempt. Fuel pressure gauge shows ~20 psi when the key is first turned on; get 50 psi after turning key off and then on again. However, pressure drops quickly to ~10 psi as soon as you hear the pump turn off. So, we'll replace the fuel pump assembly (the gauge is erratic, not accurate at upper 1/2 of tank volume).
Any recommendations on pump assembly mfr - Carter? Delphi? Anyone know what GM uses - I've heard it was Delphi.
Thanks.
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