What would make the heater stop blowing while on, and intermittly start and stop blowing (days apart)?

1979 LINCOLN TOWN CAR

15,000 MILES

CARLDAD

MEMBER
1 POST

This is a 1979 Bill Blass signature edition belonging to my father. He had the blower motor replaced a year ago and about three weeks ago early in the morning, he had the heat on while driving. All of a sudden, the blower stopped working. Then the following day, it worked again. Yesterday he called and said it won't do anything again. I checked the fuses,and the wiring (that I could reach) for loose connections, but came up with nothing. I'm not sure of the exact wiring and relay setup on this car and could use some help. I'm currently out of work and can't afford to bring it to a shop for him. It's getting cold here and he's 84 years young. please steer me in the right direction to help him out. THANK YOU!!!

Nov 3, 2011 at 3:54 PM

HMAC300

✓Experienced Mechanic
48,601 POSTS

there is a relay for the blower and it's either on the firewall by theheater or by the blower. we dont have info for this vehicle due to age, but if memory serves me right , that is where it's at. Of course the wiring could be burnt up by the resistor which should be in that same area, it may have 2 screws holding the resisi]tor in place. this may be automatic temp control and one of the potentiometers may be screwed up causing this as well. that's where you set the temp inside the car.

Nov 3, 2011 at 5:37 PM

🔧 Tools & Auto Repair Parts

Find automotive tools, diagnostic equipment, and replacement parts for your next repair.

Shop on Amazon →

Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.

Add a reply

Ask a new question

What would make the heater stop blowing while on, and intermittly start and stop blowing (days apart)?

Frequently Asked Problems for This Vehicle