WHY WILL A 1991 CHEVY SUBURBAN 5

  • Tiny
  • dg2960
  • 1991 Chevrolet Suburban
  • 118,000 miles

Why will a 1991 chevy suburban 5.7 2500 start and run for fifteen seconds and then stop? I have replaced the ecm, fuel pump module, fuel pump relay, and the ignition module. Vehicle will lose power after fifteen seconds at the fuel pump.

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Friday, December 28th, 2012 AT 12:13 AM

1 Reply

  • Tiny
  • ASEMaster6371
  • Expert
  • 25,556 posts

What is the actual fuel pressure?

Roy

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Friday, December 28th, 2012 AT 2:34 AM

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