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2004 Chevy Tahoe Fan Blows but no heat

Tiny
JAKUGRE1
  • MEMBER
  • 2004 CHEVROLET TAHOE
  • V8
  • 2WD
  • AUTOMATIC
  • 136,000 MILES
My fan blows, but there's no heat from front vents until RPM's are up. Stop at a light and vents blow cold air again. Sounds like vacuum problem? Also seems to be no hot air from rear vents.
Thursday, December 10th, 2009 AT 9:51 AM

2 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,179 POSTS
Actually, it sounds like low coolant. Have you checked to see if the engine coolant is full?

Let me know.

Joe
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Friday, December 11th, 2009 AT 8:10 PM
Tiny
JAKUGRE1
  • MEMBER
  • 1 POST
That's exactly what it was. A friend also had the same problem with his Ford, and I checked and filled the day after I posted. The guys who change our oil were supposed to be checking this. Guess we won't be going back there again. Thanks!
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Sunday, December 13th, 2009 AT 4:11 PM

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