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02-11-2012, 09:26 AM
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#1 | |
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AF Regular
Join Date: Sep 2004
Location: Dayton, Ohio
Posts: 126
Thanks: 16
Thanked 2 Times in 1 Post
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weak heat
2001 bravada 4.3 vortec. it just got antarctic in my town and now i go to turn the heat on and my car does not get as hot as it used to. ive also noticed that the temp gaugebarely moves past 100 degrees even after driving all day. i have turned the heat all the way up but it just gets warm. i think it might be the thermostat stuck open or maybe something to do with the antifreeze. i hope my heater core isnt out i dont want to be out in the cold fixing it. as always any and all info greatly appreciated. thanks in advanced guys.
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02-11-2012, 12:20 PM
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#2 | |
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AF - Advisor
 
Join Date: Mar 2004
Location: Nashville, Tennessee
Posts: 2,919
Thanks: 112
Thanked 41 Times in 39 Posts
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Re: weak heat
Yup, your thermostat could be stuck open a tiny bit.
With the engine running and as warm as it'll get, feel the upper radiator hose at the radiator. If it's warm, the thermostat is leaking by. If it's cold, your heater core is drawing out all the available heat, acting as the engine's radiator. |
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| The Following User Says Thank You to Chris Stewart For This Useful Post: |
ericn1300 (02-11-2012)
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02-11-2012, 08:31 PM
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#3 | |
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AF Premium User
Join Date: Jun 2005
Location: meridian, Idaho
Posts: 2,067
Thanks: 7
Thanked 27 Times in 27 Posts
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Re: weak heat
You know it yourself, Allegretto, it's most likely a bad thermostat. A $10 dollar part and easy to replace, but don't forget to get a new radiator cap at the same time. They have about the same life expectancy.
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