1989 Chevy Suburban engine flooding

1989 CHEVROLET SUBURBAN
88,000 MILES • V8 • 2WD • AUTOMATIC
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DAN BILODEAU
  • MEMBER
  • 2 POSTS
i was refered to this site by a mechanic that i paid for on fixya.com. this is my problem... i went to start my truck yesterday morning, it started and stalled and would not restart. after trouble shooting i found the engine flooded. as soon as i start to crank the injectors go full on and flood the engine. i changed the ignition module and still the same problem. i changed the ecm, the engine started and ran for 3 min. and the same problem.what i think i need to do is get a pinout so i can check from ign. module to ecm and from ecm to injectors. what do you think?????
Apr 27, 2009 at 10:03 AM
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RACEFAN966
  • ✓Experienced Mechanic
  • 5,029 POSTS
I think you should buy a noid light from your local parts store and plug it into the intector harness and see what it is doing. These noid lights are not very expensive about 17 bucks for one for you truck. Follow the instructions that come with it and let me know what you find.
Apr 27, 2009 at 12:36 PM
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DAN BILODEAU
  • MEMBER
  • 2 POSTS
Thanks. I found the problem it was a shorted coolant temp sensor.
Apr 28, 2009 at 4:38 AM
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RACEFAN966
  • ✓Experienced Mechanic
  • 5,029 POSTS
Yep that can do it too. Glad you found it if you have any other questions just ask. Thanks and have a great day.
Apr 29, 2009 at 3:22 AM
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