Chevrolet Truck not starting in cold weather

Tiny
HERSHEY0628
  • MEMBER
  • 1999 CHEVROLET SILVERADO
  • V8
  • 2WD
  • AUTOMATIC
  • 245 MILES
I have a 1999 Chevy Silverado 5.3 that will not start when the weather is below 20 degrees.
Monday, December 27th, 2010 AT 3:18 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,779 POSTS
IF it starts with starting fluid, check fuel pump pressure when it is that cold. If it doesn't start, check spark. Make sure the spark is a hot blue snapping spark. If it is and the fuel pressure is good, check compression. It may be getting low. Steel contracts when it gets cold. Thus, if there is excessive wear in the cylinders, rings. The cold weather will lower the compression and the engine will be harder to start or not start at all.
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Wednesday, September 2nd, 2020 AT 2:48 PM

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