Question about 1997 Buick LeSabre

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When the fan is turned on with heat, get a burning smell

Heater does not emit the burning smell when the fan is off. left with a machanic for two weeks and he could not find where the smell was coming from.

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This is Caused by Dust Settling on the Heating Coils from the Summer Months and Should Disepate after a While and be Just Fine. Please Rate My Response! Thanks!

Posted on Feb 05, 2009

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Check you coolant level(gurgling sound). A sweet smell is most likely a leaking heater core. Burning oil is valve cover gaskets.

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Are you loosing radiator fluid. sometimes the heater core will rupture and you will smell burn odor. also check for strange rubbing sounds or screeching coming from the blower fan motor. or engine exhaust manifolds are hot when car is on, make sure nothing is leaning on them which will cause a burn odor. Any odor coming from outside will find it's way inside through the fresh air vents.

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YOU HAVE A BAD GASKET LEAKING OIL ON THE EXAHUST
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AT STOP LIGHTS TURN YOUR FAN TO LOW
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It appears your fan itself burned out. When a field coil of an electrical fan burns out it usually makes a lot of smoke. The noise could be something that fell in there that stopped the fan from turning freely. I can imagine it heated up under the strain and burned out.

When you restarted it was burnt out so hence no noise and no fan.
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