1991 GMC C1500 Fuel Problem

1991 GMC C1500
130,000 MILES • V8 • 2WD • AUTOMATIC
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JAWELCH
  • MEMBER
  • 1 POST
My Truck starts and runs but when it gets warmed up the engine starts missing and it dies. Then when you try to restart it will not start it acts like it is floated out, until you let it set then it will start and run and do the process all over again. We do not have any error codes in the ECM and we replaced the ECM with a new one thinking the computer could be bad but it still does it.
Mar 16, 2008 at 6:09 PM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Check the fuel pressure and comeback with the readings-then we'll move on to other areas.
Mar 16, 2008 at 6:20 PM
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