2004 Chevy Tahoe Fan Blows but no heat

2004 CHEVROLET TAHOE
136,000 MILES • V8 • 2WD • AUTOMATIC
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JAKUGRE1
  • MEMBER
  • 1 POST
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.
Dec 10, 2009 at 9:51 AM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
Actually, it sounds like low coolant. Have you checked to see if the engine coolant is full?

Let me know.

Joe
Dec 11, 2009 at 8:10 PM
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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!
Dec 13, 2009 at 4:11 PM
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