Replaced Fuel pump more issues ahead
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TECH Apprentice
Joined: Aug 2008
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From: Greensboro NC or Miami Fl
Replaced Fuel pump more issues ahead I have a 98 transam in which I just replaced the fuel pump I had it running for a few days and i went to gas station to fill her up. When i went to start her up i can hear the fuel pump prime but it wont start. I have 12v hard wire to the pump So i know its getting power cranks but still wont start. Can anyone help please???
Thread Starter
TECH Apprentice
Joined: Aug 2008
Posts: 369
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From: Greensboro NC or Miami Fl
No codes as far as fuel is concern besides o2 codes. I went ahead and check the shraeder valve and it had no fuel going through it i was suggested changing the fuel filter. Inwill be doing so today. Pump still sound strong back there. I hopw the pump not fubar yet
Last edited by zrultima; Apr 20, 2015 at 09:14 AM.
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Thread Starter
TECH Apprentice
Joined: Aug 2008
Posts: 369
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From: Greensboro NC or Miami Fl
What gets me is the 12v wire the grey wire wasnt sending 12v to the pump. I replaced it and ran a new line worked great for a few days and now nothing. I did trace the lines and seen no leak
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TECH Apprentice
Joined: Aug 2008
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From: Greensboro NC or Miami Fl
Sorry to revive this but i would like to get a fuel pressure gauge that i can attach to the fuel rail i went to different auto part no one seem to know what i was talking about and guided me to the tester
Thread Starter
TECH Apprentice
Joined: Aug 2008
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From: Greensboro NC or Miami Fl
Alright guys so the pump was only making 20 psi so I swapped it out for another one started right up but then when I went to go park it didn't start up again. it primes but wont start I open her up and notice that one of the black plastic tube in which what looks like a regulator had broken off
Thats your return line with the regulator in it. Youll need a new one. Without it all of your fuel is comming back into the tank and bypassing the regulator thats why you only get low pressure then nothing. The other pump was probably good and you had a crack in the return line and when you replaced the pump it broke on off.