I have an 86 cressida and the heater is not heating up? The blower is working fine but the heater is not coming on. Can anyone help with this problem.
- posted
17 years ago
I have an 86 cressida and the heater is not heating up? The blower is working fine but the heater is not coming on. Can anyone help with this problem.
Bad thermostat?
If the coolant temperature is registering as normal on the instrument panel, then check to see if the heater control valve on the firewall in the engine compartment is opening. If the heater control valve is opening, then you will need a repair manual to diagnose the auto AC system.
Also check coolant level in the coolant overflow bottle.
If the coolant temperature is not registering as normal, the thermostat may be stuck open.
Also, if your fluid is low, check for leaks. If you replace the thermostat, have the fluid changed and have it CHECKED FOR LEAKS and have the cap tested for pressure. It's not good to have no heat in the middle of 0 degree weather. My dad's thermostat blew out on his 77 in the middle of winter one day and we replaced it the same day and that fixed the problem.
Charles of Schaumburg
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