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Q: wont start on 1999 GMC Yukon

my yukon will only crank will not turn over so i replaced the fuel filter and it started right up so i let it run for about 15 min then i shut it off then tried to start it back up it started to just crank again but not turn over so i poured fuel down the throttle and it started back up but then died when i gave it to much gas now im back at square 1 again i dont think its the fuel pump becuase i can here it turn on does anyone know what it could be
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I would suggest you have a mechanic check the fuel pressure. Even if the fuel pump is running, it doesn't mean your getting the correct pressure or volume.
Yes you would need a new pump, unless when you got the pump out you saw something else that could cause that same problem. The only thing I could think of would be if the coupler (the small rubber connector hose) that couples the pump to the line was split. Hope this helps. Good Luck
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