2000 GMC Sierra heater termps low

Tiny
CHUCKS2000GMC
  • MEMBER
  • 2000 GMC SIERRA
  • V8
  • 2WD
  • AUTOMATIC
  • 102,000 MILES
As of this winter my trucks heater barely blows hot air anymore. Fluids full, thermostat good, eng temp normal. Where do I start?
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Monday, January 21st, 2008 AT 3:59 PM

1 Reply

Tiny
BMRFIXIT
  • EXPERT
Isolate and flush the heater core
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Monday, January 21st, 2008 AT 5:50 PM

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