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1991 GMC Sierra won't start

Tiny
BINGONANNY55
  • MEMBER
  • 1991 GMC SIERRA
  • V8
  • 4WD
  • AUTOMATIC
  • 170,000 MILES
My husbands truck won't start unless you spray starter fluid or gas into it then it runs good but turn it off and it will not start untill you spray it again. Can you help with this problem
Wednesday, July 16th, 2008 AT 5:43 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Do you hear the fuel pump for 2secs when key at run -if not check the fuel pump relay-the oil pressure sending unit powers the pump after it starts up-there's no initial fuel pressurization-


https://www.2carpros.com/forum/automotive_pictures/12900_oil_sending_unit_and_fuel_pump_circuit_62.gif

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Wednesday, July 16th, 2008 AT 5:53 PM

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