1995 Chevy Lumina heat only sometimes

Tiny
CHAMPAGNE
  • MEMBER
  • 1995 CHEVROLET LUMINA
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 230,000 MILES
I have replaced the termostat and still the heat in the car comes and goes.
Saturday, January 30th, 2010 AT 12:04 AM

1 Reply

Tiny
BLACKOP555
  • MECHANIC
  • 10,386 POSTS
Your going to have to verify if its blend door error or cooling system error. Wait for vehicle to start to cool off with the air blowing in. Note the heater core hose temps. Then when air gets hot again. Note that. If there is a change in the temps then the cooling system is bad. If not then chances are the blend doors are not workin gproperly
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Saturday, January 30th, 2010 AT 11:47 AM

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