1999 GMC Yukon cold start problems

Tiny
LONEDOG10
  • MEMBER
  • 1999 GMC YUKON
  • V8
  • 4WD
  • AUTOMATIC
  • 148,000 MILES
10 degrees or colder--engine cranks over good--will not fire--if and when engine does start and warm up--runs fine and start s fine
Tuesday, January 22nd, 2008 AT 9:50 AM

1 Reply

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Check, replace the ECT, engine coolant temp sensor.
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Tuesday, January 22nd, 2008 AT 10:15 AM

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