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Old 12-11-2008, 06:21 PM   #1 (permalink)
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no heat when idling

hey all

2006 impala 3.5l has no heat when idling. but when your driving it the heat blows fine. anyone know the problem?

its the wifes car and shes getting cold

any help would be appreciated

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Old 12-14-2008, 12:05 PM   #2 (permalink)
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Quote:
Originally Posted by scrapdaddy View Post
hey all

2006 impala 3.5l has no heat when idling. but when your driving it the heat blows fine. anyone know the problem?

its the wifes car and shes getting cold

any help would be appreciated
not familiar with your year impala but i would check all hoses to heater core and connections, and ensure no leaking.

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Old 12-14-2008, 12:49 PM   #3 (permalink)
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our '06 does the exact same thing, at idleing it is cold but if you rev it up to around 2500 rpm's then it starts blowing hot agian

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Old 12-16-2008, 10:07 PM   #4 (permalink)
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years ago I used to put a square piece of cardboard with a circular hole in the middle - right in front of, and against the rad. It gets -40 below here and touches -45 once or twice a winter. It used to help big time. just remember to remove it come spring

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Old 12-20-2008, 04:56 PM   #5 (permalink)
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does any one else have this problem??

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Old 12-20-2008, 06:55 PM   #6 (permalink)
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you might have an air pocket in the system. This may sound stupid but I've had to jack up the front of the car and then open the rad cap and burp the system.

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Old 12-22-2008, 03:07 PM   #7 (permalink)
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Exclamation

this happind to a buddy of mine but with a 2003 impala, the problem was that the rad was cracked and had to be replaced.

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Old 12-23-2008, 06:03 AM   #8 (permalink)
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i havent noticed any leaks or anything?

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Old 12-23-2008, 11:03 AM   #9 (permalink)
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Is there no heat while idling ever, or just when it's cold out?

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Old 12-23-2008, 08:37 PM   #10 (permalink)
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i think i have only noticed it when it is cold out.

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Old 12-28-2008, 07:01 AM   #11 (permalink)
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it must be somewhat common ?

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Old 01-05-2009, 04:47 PM   #12 (permalink)
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or not?

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Old 04-25-2010, 06:22 PM   #13 (permalink)
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Quote:
Originally Posted by capricewiz View Post
you might have an air pocket in the system. This may sound stupid but I've had to jack up the front of the car and then open the rad cap and burp the system.
You probably have a leak and or low on coolant. If your cooant level is okay and you don't see any leaks, jack up the front end as high as you can and run it with the cap off. Give it a couple of "whomba" "whomba" with the throtle then look down the filler neck and check for bubbles rising to the top. It's best to pressure check the system first. Most shops do that for free.

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