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.
Advertisement
JDL
CAR REPAIR CONTRIBUTOR
16,098 POSTS
Do you live in an extremely cold region? What is the engine operating temp in degrees F? Do the heater hoses get hot? Could be thermostat issue? Could be problem with temp door, under the dash?