Question about 2002 Chevrolet Express

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I have a 2000 chevy express van v6. I have had to change the fuel pump 5 times in the last 3 years. The last one I installed last month. I checked the psi at pump on install and it was 90 psi, now a month later it's down to 70 psi. another 10 and i'll be changing it again. Any idea what is causeing pumps to fail!

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I have three of these vans, (206k, 335k, 443K miles) I ONLY USE GM PUMPS!!! any others i have tried are complete junk!...Second, make sure your tank is clean and fuel filter clean... I always use compressed air to blow any dirt away from the o ring seal before i remove the pump from the tank. You might consult with a radiator shop on what you might use to clean the inside of the tank. I have never cleaned mine, but i have replaced about 7 or 8 of these pumps. Even the GM pumps only last about 100,000 miles. i try to replace mine before they go out. i have never experienced a GM pump losing pressure, just all or nothing....Just make sure there is nothing obstructing the fuel flow and examine your inlet mesh on the bottom of the pump for any dirt build up...

Posted on Aug 13, 2008

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