Was driving down road and truck quit.

1999 GMC TRUCK
102,000 MILES • 7.4L • V8 • 4WD • AUTOMATIC
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JACKVICKERS
  • MEMBER
  • 1 POST
I replaced the fuel pump because it didn't sound like it was working. I replaced it in the spring so I thought I had a bad one. Not the problem. Checked for spark at #1 by pulling plug and grounding on manifold while my wife turned it over. It didn't spark. I took the coil and ICM to Autozone to have them check them and they said they were good. Any suggestions? I understand that the crank position sensor could be the culprit. Where is it located please? Thank you, Jack
Sep 7, 2015 at 11:30 AM
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HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
this shold be scanned for codes but check crank sensor it may have a buildiup of sludge on it. its in timing cover.
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Sep 8, 2015 at 6:24 AM
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