I have narrowed the problem down to either the heater temperature control or the actuator. How do you determine which is the problem. Can a bad temp control swtch, be determined by a specific means, or do I just change them both. HELP, three winters w/heat issues.
 
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Ask Your Question1996 Ford Crown Victoria
Question: How do you determine if your Actuator, or heater temperature control, is bad.
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