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My 93 Grand Am starts and runs for about 15.

Tiny
COLDSTEEL9MM
  • MEMBER
  • 1993 PONTIAC GRAND AM
My 93 grand am starts and runs for about 15 minutes then dies, won't start again. I have replaced the plugs and wires, battery, idle air sensor and the fuel pressure regulator and the fuel relay. I am getting 40 psi from the fuel pump. What could cause this?
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Saturday, December 15th, 2012 AT 8:50 PM

6 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
40 is about the minimum. What is the pressure when it dies?

Roy
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Saturday, December 15th, 2012 AT 10:35 PM
Tiny
COLDSTEEL9MM
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  • 21 POSTS
Sorry that was a misprint, the pressure is at 45 when starting and when it dies. It starts and runs for 15 minutes and gets to temp and dies, it cools off and starts and runs again for 15 minutes and dies again. Only paid 800 for this car and have about 300 in it.
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Saturday, December 15th, 2012 AT 10:46 PM
Tiny
ASEMASTER6371
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Sounds like you know why they sold it now.

Find out if it has spark when it quits

Roy
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Saturday, December 15th, 2012 AT 11:23 PM
Tiny
COLDSTEEL9MM
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  • 21 POSTS
How do I do that?
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Saturday, December 15th, 2012 AT 11:26 PM
Tiny
ASEMASTER6371
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Pull off a spark plug wire to see if there is any

Roy
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Saturday, December 15th, 2012 AT 11:29 PM
Tiny
COLDSTEEL9MM
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  • 21 POSTS
While its still running?
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Sunday, December 16th, 2012 AT 1:41 AM

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