2006 V6 Mustang-Heater/thermostat issues - Ford Mustang Forum
 
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post #1 of 5 (permalink) Old 12-30-2009 Thread Starter
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Question 2006 V6 Mustang-Heater/thermostat issues

Can't quite figure out why this is happening, but my heater will start blowing cold air out when the heat is still turned up. Then after a while it will start blowing warm air again. It seems to be a random occurance, but does happen most times that I drive anywhere.

I haven't made any modifications to the car yet, so it's not a result of poor installation or anything. Thanks for your help.
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post #2 of 5 (permalink) Old 12-30-2009
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You have either a bad thermostat (most likely) or an air bubble in the cooling system.

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post #3 of 5 (permalink) Old 12-30-2009
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might just be low on coolant, which means you might have a problem some where. if it is low, check around the thermostat housing for any signs of leakage, hoses , clamps and around the water pump. there is a weep hole on the waterpump that will leak if its bad, ect.. the plastic thermostat housings are known to crack.

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post #4 of 5 (permalink) Old 12-30-2009 Thread Starter
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Thanks. I was planning on replacing the thermostat when I get a chance, just wanted to make sure my plan was right.
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post #5 of 5 (permalink) Old 12-30-2009
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Quote:
Originally Posted by basepaul21 View Post
Thanks. I was planning on replacing the thermostat when I get a chance, just wanted to make sure my plan was right.
theres a post in the stickys( top of the page) for replacing the thermo housing. but you can get a good idea about the thermostat in the pics. depending on your mileage and if your budget permits, might be a good time to replace the housing with the thermostat as a preventative measure.

05 V6 auto, "The V6inator" torch red, base, amustangrocksleather padded leather armrest, shift boot and e-brake cover
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