2001 Chevy Truck Truck may or may not start

2001 CHEVROLET TRUCK
155,000 MILES • V8 • 2WD • AUTOMATIC
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JARROD99
  • MEMBER
  • 1 POST
About a week ago we had very bad lighting in my area. The next morning my truck would not start. I noticed when I turned the key my gauges were not moving either. After about 2 days it decided to start when I held the gas to the floor. Once it started it ran fine but I had no speed Od,no rpm, no gas,no temp, p,r,n,d, or odometer, we put in new ignition harness did not make a diffrence and my mechanic said he tried to scan it today and that It would not reply or that it could not be read.
Jun 27, 2010 at 3:07 PM
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KHLOW2008
  • ✓Experienced Mechanic
  • 41,814 POSTS
Hi jarrod99,

Thank you for the donation.

When the scanner cnnot communicate, there are 3 possibilities:

1. The scanner is not compatible.

2. Power supply to the DLC is missing.

3. Bad PCM.
Jun 30, 2010 at 5:38 AM
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