1990 Chevrolet Lumina Repair Question
Mileage: 180,000 miles.
Chevrolet Lumina Door Problem
Answer
are both heater hoses hot???
how did you flush the heater core???
Roy
Yes all hoses are hot...
I disconnected the hoses at the firewall going into the console area and using a shop vac to blow air, I connected hoses so that I go push water back through and out into a gallon jug. THe fluid was green with minor amount of trash. After that is when I put Prestone Flush and ran the car for a couple days> Today I drained that and filled with Peak 50/50. Having no temp problems at all...
Checked all fuses and popped off console. Then I realized that the heat/air switches are like an enclosed mother board and stopped...
you will need to check the blend door motor to see if it is moving the door to the heat position.
Roy
Thanks Roy...I will go get a Haynes Manual. I did not know what part to look for...