I have a 1994 Buick La Sabare adnt he heater was hooked up to the fusebox and it is not working - its melting the wire and the toggle switch keeps blowing. I need to know if the is something else that I can do to get some heat. I have no heat right now and I am a woman that knows nothing at all about cars... Is there a simple fix or a big deal to fix it? Any ideas??

SOURCE: heater core replacement

OK, Ifound the problem with mine. Dont unplug your air dryer. I checked the 2 hoses coming out from the heater core and still one was hot and the other not hot. The top one comes from the radiator fill tank and the bottom one comes out of the core and goes around to the front and into the water pump. I disconnected both close to the core and could runwater through both directions so upon further examination, I disconnected the hose at the water pump and no water flow. The hose was plugged up with something. Once I cleared it with a hanger and reconnected it I had water flowing through the core and great heat. Hope this is your problem too as it is aneasy fix

SOURCE: heater on 2003 Buick Century only works when the rpms are up

Your likely problem is low coolant level. Check to make certain that your coolant level is topped up in the radiator and that coolant is also in the reservoir at the appropraite level as shown when on container when the engine is hot or cold. When the coolant is low, you have to have higher RPMs to get the coolant to pump through the system and heater core.

SOURCE: the cover is missing on my 1994 buick lesabre

ck the owners manual in glove box go to local library

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I got more if you need.