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Old 12-09-2013, 11:53 AM   #1
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Heater Blows cold

It's freezing here in North Texas and I went out with my 2011 V6 the other day only to find that it is blowing cold air from the heater and defroster vents. I kept waiting for it to warm up and it never happened. Temp gauge reads normal water temp. Any ideas?
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Old 12-09-2013, 12:06 PM   #2
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Originally Posted by bigmac3 View Post
It's freezing here in North Texas and I went out with my 2011 V6 the other day only to find that it is blowing cold air from the heater and defroster vents. I kept waiting for it to warm up and it never happened. Temp gauge reads normal water temp. Any ideas?
Do you have the manual type temp dial, or do you have the auto temp (if that was even an option for the Mustang...). Is the temp dial all the way over to the red?
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Old 12-09-2013, 12:10 PM   #3
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Do you have the manual type temp dial, or do you have the auto temp (if that was even an option for the Mustang...). Is the temp dial all the way over to the red?
Like mentioned earlier, the temp is running halfway between C and H. It's an analog gauge.
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Old 12-09-2013, 12:18 PM   #4
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I was refering to the dash knob used to control the cool/heat temp that comes out of the vents!

The dash control knob may not be opening the blend door to allow heat to the vents. What happens if it is all the way to the hot side?

I had an F150 that had a simular fault. The fix was to replace the seal (under warranty) for this blend door. That was a 2005 though, so I do not know if our current mustangs have this issue. I'm off to check the repair manual to see.
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Old 12-09-2013, 01:25 PM   #5
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I was refering to the dash knob used to control the cool/heat temp that comes out of the vents!

The dash control knob may not be opening the blend door to allow heat to the vents. What happens if it is all the way to the hot side?

I had an F150 that had a simular fault. The fix was to replace the seal (under warranty) for this blend door. That was a 2005 though, so I do not know if our current mustangs have this issue. I'm off to check the repair manual to see.
Thanks Bucko, that was what I was thinking was a posible problem. Yes, the temp control knob was turned all the way to the hot side. I once had a similar problem with the a/c blowing warm air during acceleration. I have an extended warranty so it is going to the shop but thought I would just ask if anyone else has such an experience.
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Old 12-10-2013, 04:15 AM   #6
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Heater delete. Warm weather model option.
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Old 12-10-2013, 05:35 AM   #7
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Heater delete. Warm weather model option.
Really?
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Old 12-10-2013, 08:14 AM   #8
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Heater delete. Warm weather model option.
Got a point, up to this past week, wasn't needed.
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