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Heating problems

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Old Nov 17, 2006 | 04:45 PM
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Default Heating problems
My heating system is blowing cool air. I've checked the HVAC and I don't have any codes also the coolent is full. I keep the climate control set at 85 and when the blower starts moving air it's luke warm at best. Any ideas?
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Old Nov 17, 2006 | 04:47 PM
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How long are you letting the car warm up before this happens?
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Old Nov 17, 2006 | 04:54 PM
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Default Re: How long are you letting the car warm up before this happens?
Usually 10 minutes before I drive it then it's driven for about 15-20 minutes to work. It's been driven longer than that and I get the same results.
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Old Nov 17, 2006 | 05:04 PM
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Default I'm not sure if this matters but when you turn on the heat, does it kick on the A/C compressor?
should be a little button you can hit to turn it off, perhaps you're running both at once. I always turn that button off when I have the heat on.
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Old Nov 17, 2006 | 05:08 PM
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Default heat is based on the coolant temperature...
if you try to "make it be hot" asap, the coolant will not get warm, and will actual cool. You need to be patient and wait for it to heat up.
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Old Nov 17, 2006 | 05:15 PM
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Default just re-read your posts
it could be that one of the coolant temp sensors is bad. There are two in the system. One is used by the A/C system to control the blower.
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Old Nov 17, 2006 | 05:19 PM
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What's the engine temp doing? Normal?
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Old Nov 17, 2006 | 05:33 PM
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Default Climate control is set on Auto and A/C comes on but I don't leave it on
I am being patient, I drove the car almost 1 hour and blower was still cool. I don't touch the blower it's all automatic.
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Old Nov 17, 2006 | 06:14 PM
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Have you done any work to the cooling system lately? Drain and refill?
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Old Nov 17, 2006 | 06:15 PM
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I'v done nothing to the system.
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