1999 Nissan Quest "smell exhaust defrost" Questions

smell coming through vents when heater or defroster is turned on Oil may be leaking from valve covers from brittle or old gaskets and is letting oil travel down to and on exhaust manifold or other hot

...exhaust/engine. What is causing it? Any filters etc. I should replace? What your smelling is most likely coolant (antifreeze). You may have a heater core leak. If you dont smell the same smell after ...

...smell the inside of the tank. if it smells the same as inside the car the heater core is leaking Be Carefull here must be exhaust leek or egr leeking fumes!!! EXHAUST FUMES ARE EXTREMELY TOXIC! CHECK ...

...defrost smells of fuel.and outside of vehicle smells too.what could be the propblem where do i start looking Is your air inlet on REFRESH or RECIRC? are you parked in a garage or outside? If this is ...

...smell fuel coming out of the vents when i am driving and when i turn on the defrost. what could that be? Either you have a fuel leak somewhere near the back of the motor, or an exhaust leak. This can ...

...exhaust pipe until cooled down. No water in oil. Car has been driven, but not overheating, some noise & smell. What can be problem & what test I should ask garage to perform to determine ...

EXHAUST SMELLS LIKE MOTH BALLS as well as the fact that my car surges when ever the defrost or AC is on. Yes the engine light is on the mechanic said it was okay it wasn't a big deal 1 Inspect OXYGEN ...

...exhaust type smell from my dash, really notice it when I turn the defrost on coming from the vents. This truck is in good shape, run well no smoke etc. The transfer pump was leaking and I replaced it ...

...exhaust? Foamy Oil on your oil dip stick? Oil slicks in your water? Overheating? These are all things that could point to a bad gasket. If you smell anti freeze or are getting steam out of your ...

...exhaust, and the smell of heated oil is wafting through the cabin air filter into the passenger compartment through the air ducts in the middle of the dash to just above the gear shift area.If my ...