2001 GMC Sonoma change thermostat and still no heat

2001 GMC SONOMA
88,721 MILES • 6 CYL • 4WD • AUTOMATIC
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BLUEMARBLE
  • MEMBER
  • 13 POSTS
what schould I do next?

updated 11/18/09
I did flush out the heater core and that did it. Thank you so much. I fix the Sr. cars around here at no cost. I am retired and glad to be able to do it.
Oct 26, 2009 at 7:01 PM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
Have you bled the system? Also, I need you to check something. With the engine warm, the heater on high, and the hood open, feel if both heater core hoses are hot.

Let me know what you find.

Joe
Nov 17, 2009 at 5:57 PM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
Hay, I'm glad you got it fixed. LEt us know if you have questions in the future.
Nov 17, 2009 at 8:13 PM
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