Question about 1985 Volkswagen Jetta

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Changed thermostat, but heater still doesnt work

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Try flushing the heater core out ,if that doesnt work a piece of cardboard in front of the rad

Posted on Dec 31, 2010


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Heater doesnt work, it blows air but not hot

Check the resistors on the same blower circuit, or heater core?

Nov 29, 2011 | 2001 Dodge Dakota

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The Heater on my Malibu works sometimes if I do not turn fan on to high sometimes it doesnt work at all , Water is flowing thru the heater core there is no leaks .. I recently replaced Head gaskets and it...

Sounds like your thermostat is stuck open.
Does the car have a water temp gauge or a light. ?
If only a light let the car run for about 10 mins and feel the radiator hoses. They should be good and warm. if not I'd change the thermostat

Jan 31, 2011 | 2003 Chevrolet Malibu

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Heater want get hot, changed thermostat, fluid levels good, car is heating properly

Probably a plugged up heater core. You can try to disconnect the heater hoses from it and flush it out both ways with your garden hose. If that doesnt work you'll have to replace it.

Dec 07, 2010 | 1996 Jeep Grand Cherokee

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Heater not heating on 2002 suburban fan blows just does not heat up any ideas culd it be a relay switch

No, Relays control the fan running. But you said it is running. Low coolant level, clogged heater core or sticking temperature door could be the problem. Is the engine running at normal temp? Open thermostat could cause low temperature.

Feb 05, 2010 | 2002 Chevrolet Suburban 2500

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Ridiculous the heat doesnt work

First, check to make sure the coolant level is full...if not, it will bypass the heater core. Next, try replacing the thermostat and radiator cap. These are both inexpensive, and it's a good idea to replace them periodically. Finally, you may need to replace your heater core. Unless you are mechanically inclined, this is something best left to a mechanic. The difficulty of changing this ranges from vehicle to vehicle.

Jan 06, 2010 | 2004 Ford Explorer

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Changed thermostat heater work couple days then stated blowing cold air again

try topping the rad up ,if that doesnt work then pull one of the heater hoses off and bleed the heater

Dec 03, 2009 | 2001 GMC Sonoma Extended Cab

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Heater works sometimes no leaks engine temp normal

Considering that your vehicle is only 7 years old we can rule out any clogging in the heater core. I would suggest having the heater control vavle which cuts into your heater hose in the engine compartment check or replaced. This controls the volume of coolant flowing through the heater core. Thank you, Dana

Oct 18, 2009 | 2002 Nissan Altima

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Heater issues

you need to begin by changing the thermostat. if you dont know how go to an autozone and they will assist you.

if that doesnt solve the problem you need to change the heater/ac blower relay.

Jan 27, 2009 | 2002 Dodge Stratus

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2000 lincoln ls heater not working...thermostat?

- If temp guage reads normal, the lack of heat may be due to the Heater Control Valve. Located in front of the radiator. Lower passenger side. A real bugger to replace.
- The plastic cap just over the thermostat is key in re-filling the anti freeze and bleeding air.

Nov 18, 2008 | 2000 Lincoln LS

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