fumes in cab area!!!

[fredamens]

Since i have started driving my bus after the winter there is a smell in the cab area which is like car fumes. I cant understand where this is coming from or why.

Has anyone got any ideas?

The bus seems to be running ok apart from the smell.

Any help would be much appreciated.

Fred

 

[Trikky2]

Two common scources of fumes when the heater is switched on.

If its exhaust fumes then check the heat exchangers, particularly the end that connects to the exhaust.

If its crankcase fumes check your breather/oil filler.

 

[fredamens]

Thanks much appreciated

Fred

 

[ronmidg]

and look underneath, if you have acquired an oil leak it is probably running over and into your heat exchanger(s) and so into the heating air.