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Old 11-12-2009, 01:45 PM   #1 (permalink)
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95 ss heat not working

I have a 95 impala and I replaced the heater core about 10 months ago, the heat has been working fine up until recently, the jus plain stopped. It can't be the heater core, or can it? If its not the heater core what could it be?

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Old 11-12-2009, 01:55 PM   #2 (permalink)
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As crude as it may sound, take some pliers and wrap your heater hoses with a towel/rag. Gently squeez the hoses with the pliers. Sometimes this will break up any blockage and free up your heat.

Possible cause is the system was not properly flushed when the heater core was replaced.

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Old 11-12-2009, 09:10 PM   #3 (permalink)
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Ok, I was wondering, would it be the thermostat? I did notice a small leak coming from one side of my radiator. Very small leak...and tonight I noticed my temp guage going past "half" where it normally lays when engine is warm. What are all these signs leading too?

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Old 11-13-2009, 11:57 AM   #4 (permalink)
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It can be alot of things, you previously only mentioned your heater not working.

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Old 11-15-2009, 06:11 PM   #5 (permalink)
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Ok, so I changed the thermostat, squeezed the radiater hoses, and heat worked for brief second then stoppped...what do I do?

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Old 12-03-2009, 08:46 PM   #6 (permalink)
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Heat problem

You need to check to see if your rad or cooling system can hold the pressure of your cap.. You need one of those pressure testers that you pump up to the lbs on your cap...some parts places will come out and do it for you free.. If youre not holding pressure you can forget it.. probably have a leak somewhere that will have to be fixed... you might even want to put about 2 or 3 extra lbs pressure on it just so you can see the leak eaiser.. Usually if your heater core is bad it will leak and you will smell that sweet coolant smell..

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Old 12-03-2009, 08:56 PM   #7 (permalink)
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It sounds like the heater core is plugged up. You need to flush it out. You can do this by disconnecting the two hoses and using your garden hose to spray in them one at a time. Keep doing it until the water comes out clear. Then reconnect and fill it up with coolant and bleed it.

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