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Truck won't Crank in cold weather

Tiny
KRREECE
  • MEMBER
  • 2000 GMC SONOMA
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 120,000 MILES
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".
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Monday, December 13th, 2010 AT 3:24 PM

2 Replies

Tiny
JDL
  • 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.
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Monday, December 13th, 2010 AT 3:30 PM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 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.
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Monday, December 13th, 2010 AT 3:40 PM

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