It is likely something had gotten on the heater blower resistor, it gets very hot during operation, remove the blower motor and inspect the inside for debris such as leaves and other materials.
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check your alternator,power steering or air conditioning belts, unless you picked up whilst driving from the road any plastic bag onto the exhaust pipe and stuck and melts on it.
SOUND LIKE ALTERNATOR SHAFT BEARING FAILING CAUSING ALTERNATOR PULLEY LOCK OR PUT DRAG ON DRIVE BELT CAUSING BURN RUBBER SMELL OR DRIVE BELT LOOSE CAUSES BELT SLIPPAGE MAKE BELT RUB AND BURN.WHEN YOU SMELL RUBBER BELT BURN SMELL WATCH OUT DRIVE IS GOING TO BREAK.
look under the car at the exhaust you might have a plastic bag melted to the exhaust causing the smell. you can leave it and let it burn off. You can also jack the car up if you feel comfortable doing so and scrap off as much as you can. That is a common result, if not a bag could be a serpentine belt failing.
Hello
make sure that they check all of rubber materials that could be burning which is a number of things, The ac belt could be slipping and getting hot, other hoses could be burning on the exhaust, sound insulation or under coating on the bottom of the car. they need to do just a good thourough inspection, even raise the car up on the lift to make sure nothing is bent, broke,rubbing or missing. The loose hose clamp is not going to smell like burnt rubber, maybe antifreeze but not rubber simply tell them you would like these things checked out they should do that for you
Good luck
Chris
Please have your exaust pipes checked, perhaps a mount is burning. The catalytic converter can make a nasty odor when it is clogged. Check the wear on the serpintine belt.
Diagnosing this will be subject to a process of elimination. It could be the radio, blower motor or any other accessory particularly ones with moving parts; Try switching those off and try to note when this problem occurs and what is on/whatyou are doing. Something is getting hot causing the smell so it will be a situation where the accessory will have to run a while before doing it. It is a possibility that there is an electical curcuit overheating, but less likely. Lets rule out accessories first and give us an update. GL
If its in the engine compartment there is an antifreeze leak..If it inside the car like like near to the windshield, you have a bad heater core. Good Luck contact me if you need more help.
the alternator pulley might be stuck and the belt is roling over it so it crates a burn in your belt if that is not it you inside of the alternator might be burning
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