2003 Chevy Impala Intermittent heating

Tiny
MBB219
  • MEMBER
  • 2003 CHEVROLET IMPALA
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 51,000 MILES
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!
Thursday, November 13th, 2008 AT 10:18 PM

3 Replies

Tiny
RHALL77
  • MECHANIC
  • 3,361 POSTS
Possible thermostat. Are you sure its full of coolant. Do you have dual zone heating in it
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Friday, November 14th, 2008 AT 12:13 PM
Tiny
MBB219
  • MEMBER
  • 2 POSTS
Thanks for your reply. I will check the coolant level.

Yes, it does have dual zone heating. It is the manual/slide type.
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Saturday, November 15th, 2008 AT 9:55 AM
Tiny
RHALL77
  • MECHANIC
  • 3,361 POSTS
Does it heat ok on the other side
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Monday, November 17th, 2008 AT 4:58 PM

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