1999 Blazer heat blowing cold air

1999 CHEVROLET TRAILBLAZER
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LARRYDRUDE
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  • 1 POST
The heat is on but blowing cold air - does not get hot. Is it the thermostat? 4.3 V6 engine - Is the thermostat hard to replace? Where is it located?
Feb 7, 2006 at 10:23 PM
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2CARPRO JACK
  • CAR REPAIR CONTRIBUTOR
  • 11,533 POSTS
t-stat is on top of the engine, follow the upper radiator hose. Check the coolant level first, if its low then the heater core might be empty= cold air
Feb 8, 2006 at 2:43 PM
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