1995 Chevy Lumina heat only sometimes

1995 CHEVROLET LUMINA
230,000 MILES • 6 CYL • FWD • AUTOMATIC
Avatar
CHAMPAGNE
  • MEMBER
  • 1 POST
I have replaced the termostat and still the heat in the car comes and goes.
Jan 30, 2010 at 12:04 AM
Advertisement
Avatar
BLACKOP555
  • CAR REPAIR CONTRIBUTOR
  • 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
Jan 30, 2010 at 11:47 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.