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A fuel leak. A coolant leak, coolant has a sweet smell. An exhaust leak. A burnt clutch. A burnt rubber smell, from a slipping accessory belt/tensioner or rubber contacting the exhaust. A Moldy smell with the A/C on from a dirty/moldy evaporator. An oil leak, if it is leaking near the exhaust manifold, from say the valve cover. A smell from burnt brakes from a faulty brake caliper. A burnt plastic smell, from plastic melting against the exhaust( wiring loom, or plastic bag on catalytic converter). A. mildew smell caused by a water leak, clogged evap case drain, flogged sunroof drain.
check your furnace or kitchen.
Check the exhaust for oil on it. A leak is most likely blowing onto the exhaust and burning off.
Call the A-team
If what you are decribing is smoke coming from underhood that smells like burnt oil, it may be your valve cover gasket(s) leaking on the hot exhaust manifold. This smell is strong enough to come into the passenger compartment while you drive. It should be repaired. I hope this helps you. Mark
You can smell exhaust because your exhaust pipes and exhaust system has worn out. As a result, the exhaust and carbon monoxide it contains leaks inside the van. Soon, it will not be a problem because the carbon monoxide will have killed all of you.
exhaust is pretty easy to smell. If you smell it, then you likely do, also check the rear end of the car for possible places where the exhaust can get into. a battery powered carbon monoxide detector will also work
most of the time you will smell a rotten egg smell if its bad, or if you hear a rattling noise coming from your exhaust
sounds like your air conditioner compressor is bad.
Here is a couple possibles, Engine or transmission oil leaking onto the hot exhaust. Plastic shopping bag caught onto exhaust system. Yesterdays chilli
A smell coming from a reverse cycle air conditioner may be a signal that the filter needs to be cleaned. A smell like engine exhaust might be present if the air conditioner motor is in need of repair.
Because its burnt.