Question about 1999 Chevrolet Suburban

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I think the fuel pump on my 1999 Chevy Suburban is out, but I'm not sure. I hear about interlocks and other things that may disable the pump. I don't want to go through all the hassle of trying to change the pump if it's not bad. How can I troubleshoot the fuel pump to make sure that it IS bad, or to determine what's really wrong?

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The first thing is to see if the motor starts with starting fluid, if it does then it definitly a fuel problem , also a quick trick to try is have someone crank the engine while you bang hard on the bottom of the gas tank with a rubber hammer and if it starts then its a bad pump for sure, if it doesnt start then test for power at the pump and also make sure it has a good ground, test for power while someone turns the key on and then a quick crank of the motor, it should have power for a few seconds then go out and also test ground if all is good then the pump is bad. hope this helps.

Posted on Oct 08, 2010

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