Oil smell when heater is on
I am currently in the military and my wife is telling me there's a smell of oil coming from the ac when the heater is on. I am thinking I have to replace the pcv valve what are the other factor?
Cette question est-elle utile ?
Did you check the engine for a leak?
par Ben Capehart
If possible, she can try checking under the hood for oil leaks(1), possibly dripping onto the exhaust pipes(2) resulting in cooking off motor oil. The cabin air intake would draw in any odors coming from the engine and surroundings. If unable to do this, perhaps she can reach out to other military families, friends, relatives for help and/or ask for recommendations for local repair shops.
par F Dryer
If she is using defrost when it happens, it is pulling air from the engine compartment. Some vehicles will not allow recirc in defrost mode. Most likely there's an oil leak in your motor, and when the heater pulls in air from the engine compartment she smells it. Test this by having her turn the vents to floor, and recirculation.
par brandon k
Most likely what Brandon said
par Ben Capehart