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roybelding, Shop Foreman Freightliner trucks
Category: Medium and Heavy Trucks
Satisfied Customers: 6036
Experience:  Shop Froeman for Freightliner Trucks
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Where is the air leak on a 2007 Columbia with a series 60

Customer Question

Where is the air leak on a 2007 Columbia with a series 60 only when the engine is running
Submitted: 1 year ago.
Category: Medium and Heavy Trucks
Expert:  roybelding replied 1 year ago.

good evening my name is ***** ***** I will assist

there are so many fittings and lines that we cannot tell you exactly but if it is only when it is running, then we can tell you which area. the compressor should go to an air dryer. from there goes to the air tank. there is an check valve in the tank so it should be from compressor to the tank. check the braded lines with soapy water, the dryer around the edges and bottom and the line fittings which are common. check the governor as well. it is on the top back of the compressor.


Customer: replied 1 year ago.
The air leak isn't in the above areas. It is an ECM controlled air leak
Expert:  roybelding replied 1 year ago.

the only thing that the ecm controls air actuated is the fan solenoid. without me being there to actually check it is hard to pin point from a distance. how do you know it is from something ecm controlled??