2003 Chevy Impala Intermittent heating

2003 CHEVROLET IMPALA
51,000 MILES • 6 CYL • 2WD • AUTOMATIC
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MBB219
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Hi. My car has intermittent heat. I have not noticed a pattern of when it blows warm and when it does not. I do not smell anti-freeze in the car and the rug on the passenger side has remained dry. Is it possible that the thermostat is going out? What else should I look at? Thanks for your help!
Nov 13, 2008 at 10:18 PM
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RHALL77
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possible thermostat. are you sure its full of coolant. do you have dual zone heating in it
Nov 14, 2008 at 12:13 PM
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MBB219
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Thanks for your reply. I will check the coolant level.

Yes, it does have dual zone heating. It is the manual/slide type.

[quote:fcc8ecaa9e="rhall77"]possible thermostat. are you sure its full of coolant. do you have dual zone heating in it[/quote:fcc8ecaa9e]
Nov 15, 2008 at 9:55 AM
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RHALL77
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does it heat ok on the other side
Nov 17, 2008 at 4:58 PM