Question about 2000 GMC Sierra
According to the factory service manual, you should drop the tank, there are pictures and diagrams with these in the manual.
Posted on Sep 26, 2009
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Posted on Jan 02, 2017
before all that do a pressure test and see if the pump is working..
the tank has to be drained and removed.i would not cut a hole in the box.
disconnect the battery,and ground the pump assembly if you are worried about static.
Posted on May 26, 2009
perform a presure test at the engine,but there are two pumps on this models,one low pressyre pump in the tank and a high pressure one mounted on the vehicle frame that is the one that go bad more often,so its not a pain to replace, also you can perform a volume test(this one all you need to do is unhook the line to the fuel rail and place the line in a container,at idle it should pump about a pint in 20 seconds.for the pressure test you need a presure gauge the pressure should be between 40 to 50 pounds and hold it for about 10 min.
Posted on Sep 09, 2009
take off the bed and slide it 3 to 5 feet back..and you will have a clear vision of the fuel pump..make sure u disconnect all the light wiring on the rear and the fuel cap and filler hose before removing the bed good luck
Posted on Apr 21, 2010
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