2000 Chevy Suburban Cold Defrost

2000 CHEVROLET SUBURBAN
122,000 MILES • V8 • 4WD • AUTOMATIC
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TETO BOY
  • MEMBER
  • 1 POST
Defrost blows cold some times and then it works fine. rear heat works fine and vents blow hot.
Jan 3, 2008 at 8:31 PM
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BMRFIXIT
  • ✓ASE Certified Mechanic
  • 19,053 POSTS
  • ASE Certified Mechanic
[quote:c35434fd35="teto boy"]Heater problem
2000 Chevy Suburban V8 Four Wheel Drive Automatic 122000 miles
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Defrost blows cold some times and then it works fine. rear heat works fine and vents blow hot.[/quote:c35434fd35]

couple of suggestions
check coolant level
check blend door operation
flush heater core
Jan 3, 2008 at 8:44 PM
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