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10-25-2005, 04:02 AM
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#1 | |
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AF Newbie
Join Date: Oct 2005
Location: Bartlett, IL, Illinois
Posts: 8
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Heater not working...
My heater is blowing out cold air in my 92 3.1 lumina. I am assuming it is the heater core, but not sure. I got the car for free, and the person I got it from said it needed to be flushed for the heat to work again (doesn't make sense to me, but I don't know)...Any way to check if the heater core is out? Or, is there something else I could check also?
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10-25-2005, 06:44 AM
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#2 | |
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Lactose the Intolerant
 
Join Date: Aug 2004
Location: Nowhere, Missouri
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Re: Heater not working...
First open the bleeder(s) on the cooling system and fill it. If coolant is low, or air is trapped, the heater core won't get flow.
Then check the inlet and outlet at the firewall. With the heat on and engine warmed up, they should be about the same temp. If one side is colder, the core is probably hogged up or the heater control valve is broken. I assume your temp gauge indicates a normal range?
__________________
You made three mistakes. First, you took the job. Second, you came light. A four man crew for me? F**king insulting. But the worst mistake you made... ...empty gun rack. |
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11-10-2005, 10:18 PM
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#3 | |
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AF Newbie
 Join Date: Nov 2005
Location: Palmer, Massachusetts
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Where is the petcock on the system?? I noticed there is a notice on the radiator support that say "follow recommendations for filling cooling system" what does that mean?
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11-11-2005, 04:55 PM
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#4 | |
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stupidity should hurt
Join Date: Aug 2004
Location: Flint, Michigan
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Re: Heater not working...
There are bleeder valves on the engine. One on the T-stat housing, the other on the transfer tube near the water pump. You need to open these valves while re-filling the cooling system to ensure that you get all the air out.
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11-12-2005, 08:00 PM
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#5 | |
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AF Newbie
Thread starter
Join Date: Oct 2005
Location: Bartlett, IL, Illinois
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Re: Heater not working...
Where is that heater control valve?
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11-20-2005, 02:44 AM
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#6 | |
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AF Newbie
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Join Date: Oct 2005
Location: Bartlett, IL, Illinois
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Anybody????
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11-20-2005, 04:06 AM
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#7 | |
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AF Newbie
Join Date: Oct 2005
Location: Cottage Grove, Oregon
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Re: Heater not working...
It would be located somewhere in one of the heater hoses. If you think its not working, try bypassing the valve by splicing the hose together. Anytime you mess with the cooling system, though, keep a close eye on the temperature gauge until you get it properly repaired.
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11-22-2005, 11:19 AM
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#8 | ||
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AF Enthusiast
 
Join Date: Aug 2005
Location: Auburn, New York
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Re: Heater not working...
Quote:
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