Okay, so my friend is borrowing my 2001 Chevrolet Silverado. The gas gauge has been screwed up (a common problem with Chevy trucks apparently after online searches), so I advised him to just make sure that there’s gas in the tank by monitoring the trip odometer. Well, the other day he was driving and the truck just died on him. I suspected it was out of gas (can’t know for sure with the screwed up gas gauge), so I added about 6 gallons to it. It turns over, but won’t start. I’m guessing it’s a fuel pump and, with the help of a neighbor, am thinking about fixing it myself. Question is: how can I make sure that it is, in fact, the fuel pump? I know it can be tricky to fix, but I’m up for it (have another car to drive while I work on it). What steps would I go through to come to a conclusion about this (am trying to avoid going to the shop…really wanna fix it myself!) Thanks!
Answer: You still need to drop the tank. Have buddy turn the key on while you listen for the hum from the tank. If no, just bang on the tank with a stick when they turn the key on. If it starts than the pump is pooched, new pump comes with a filter. Have fun dropping the tank to get to it. If it is like most GM` s it`s worth lifting the floor mat to see if they ran the fuel pump wires under the drivers side of mat and it has worn out below the area your heel for your shoe sits as GM had a bad habit of doing this only for the fuel pump/gauge and always ran it under the floor mat under the drivers floor mat.otherwise check your fuel pressure regulator.