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Q: No heat or defrost in 2002 grand marquis. Thermostat problem? on 2002 Mercury Grand Marquis

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
No heat, Air conditioner is fine, windows wont defrost
No car image 94a1663db56199c5353592009e34aaa51078a2469bed068bb8d6f0ba43accf97
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Your thermostat is probably not the problem, unless you have an overheating problem as well. You could have a bad heater control valve since your air conditioning is working fine.
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Proper diagnostics should be administered first, but if it is the heater control valve, the cost: parts, labor, coolant, tax is about $238.
We are located in South Sacramento. Off 99/Fruitridge Rd at 5681 Franklin Blvd, Ste C.
please expand on bad heater control valve, location and cost? thank you Thank you for youre prompt reply I did purchase a thermostat and should I try that first?
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