Truck won't Crank in cold weather

2000 GMC SONOMA
120,000 MILES • 4 CYL • 2WD • AUTOMATIC
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KRREECE
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  • 1 POST
I have a 2000 GMC Sonoma, 4 cyl. When the weather get below 30 degress or so, it will not crank. Turns over fine, I can leave the switch turned on for about a minute, and then it will usually crank. Also, does not "fire" immediately after cranking / running. Turns over several times then will usaually crank. Fuel pressure / coil all check out. Even took it to a repair shop, they could not "fix".
Dec 13, 2010 at 7:24 AM
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JDL
  • ✓Experienced Mechanic
  • 16,098 POSTS
When the problem occurs, have a helper crank it, while you visually check for spark at the plugs. Go from there. Cranking is starter action.
Dec 13, 2010 at 7:30 AM
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WRENCHTECH
  • ✓Experienced Mechanic
  • 20,760 POSTS
I would try a squirt of starting fluid or fuel into the intake when it won't start to determine if what you have is a fuel mixture issue in colder weather. There are a number of things that can cause that.
Dec 13, 2010 at 7:40 AM
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