2001 GMC Jimmy heat

2001 GMC JIMMY
99,000 MILES • 6 CYL • 4WD • AUTOMATIC
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DAMION GREEN
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  • 1 POST
I HAVE A 2001 GMC JIMMY AN I HAVE NO HEAT.I REPLACED THE THERMOSTAT AN THE COOLENT IS FULL.WHAT ELSE COULD IT B?
Oct 19, 2008 at 8:54 AM
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2CARPRO JACK
  • ✓ASE Certified Mechanic
  • 11,533 POSTS
  • ASE Certified Mechanic
Could eb ablend door problem under thedash or a plugged heater core. First check to see if both heater hoses are hot. If not the heater caore may be plugged and you can try having it backflushed to see if they can get it to flow.Other wise the blend door under the dash inst working or the control knob.
Oct 19, 2008 at 9:00 AM
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