Posted 5/3/2014 12:35 (#3851591 - in reply to #3851448) Subject: RE: MX 240 cab air.
Northeast ND
Yes, my first question would be whether you have the heater valve closed. There should be a valve you can close right above the starter on the right rear of the engine block.
If it's not that, then I'm stumped! I really hope your mechanic hasn't overlooked this...
MX 240 cab air.
