1991 Pontiac Grand Prix fuel pump relay

Tiny
LCHERRY73
  • MEMBER
  • 1991 PONTIAC GRAND PRIX
Electrical problem
1991 Pontiac Grand Prix 6 cyl Automatic

My car won't start. It will turn over but won't start all the way. I noticed that the red wire under the fuel pump relay was not hook-up and didn't know if this was the problem. I don't know where it hooks up to. Last time I tried to start my car it made a loud boom under the hood when I pressed on the gas and was smoking a little. If this can be a simple thing to fix please let me know. I would like to drive my car again.
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Friday, August 7th, 2009 AT 2:24 PM

1 Reply

Tiny
JDL
  • EXPERT
The red wire may be the fuel pump prime connector. It's a test circuit for the fuel pump, doesn't plug in to anything. As far as the loud boom under the hood, I have no idea, unless it was more of a pop, then might be a timing issue?

With the engine cranking, is there spark at the plugs? Are there any codes? How is the fuel pressure?
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Friday, August 7th, 2009 AT 3:33 PM

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