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What else should I check?

Tiny
HEATHWILLIAMS
  • MEMBER
  • 1999 GMC SAVANA
  • 167,000 MILES
I have a 1999 GMC Savana 3500 5.7L service van that will not start. I have 63psi at my fuel rail and I have good spark (just changed the coil didn't help). It turns over and will not start even when sprayed with starting fluid. What is the next thing to check? Problem started yesterday van just died no sputter as I was driving down the road.
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Thursday, August 16th, 2012 AT 9:02 PM

7 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good spark where? Did you check it at the plugs?

Roy
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Thursday, August 16th, 2012 AT 9:11 PM
Tiny
HEATHWILLIAMS
  • MEMBER
  • 6 POSTS
Yes new rotor cap and plugs also installed has error code p0300
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Thursday, August 16th, 2012 AT 10:02 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
How did it run prior to failing?

Roy
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Friday, August 17th, 2012 AT 3:18 AM
Tiny
HEATHWILLIAMS
  • MEMBER
  • 6 POSTS
It ran rough at idle like it was missing and when driving at freeway speeds it would surge also rechecked error code and it gave code p1351 no other codes does this mean the ignition control module went bad. Got it to kind of start yesterday at an extreemly low idle then it would die. It basicly acts like it is flooding now and this is obvious when sprayed with starting fluid. Have raw fuel smell at exhaust. The spark as it comes off the coil wire is blue white but then changes to a yellow orange so spark might not be good after all. I have one buddy saying change fuel regulator and another saying change ICM so I'm not sure what to do.
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Friday, August 17th, 2012 AT 6:52 PM
Tiny
HEATHWILLIAMS
  • MEMBER
  • 6 POSTS
Just checked spark on spark plug and the spark is blue white.
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Friday, August 17th, 2012 AT 7:40 PM
Tiny
HEATHWILLIAMS
  • MEMBER
  • 6 POSTS
Also the plug is black they were just changed 2 months ago.
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Friday, August 17th, 2012 AT 10:08 PM
Tiny
HEATHWILLIAMS
  • MEMBER
  • 6 POSTS
Found the problem the gears on the distibutor wear missing teeth
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Thursday, September 6th, 2012 AT 6:57 PM

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