2000 GMC Sonoma little heat

Tiny
WGK450
  • MEMBER
  • 2000 GMC SONOMA
Heater problem
2000 GMC Sonoma 4 cyl Two Wheel Drive Automatic

I relace the the theromstac and still heat is warm then cool and warm again is there a heater control valve?
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Saturday, September 18th, 2010 AT 2:54 PM

1 Reply

Tiny
RASMATAZ
  • MEMBER
Check the air blend door could be the actuator/motor or the vacuum solenoid valve
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Sunday, September 19th, 2010 AT 5:03 AM

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