Kevin Twombly

So I finally figured out the fan problem! Even though I had the ac system checked and charged. As well as had it turned off, the high pressure switch by the dryer, the green one with the pig tail , was staying open , gave no codes and caused the fan to engage and disengage constantly above 1200 rpm

Thank you so much that great info Now I just need time to figure it all out!! Thanks again

I have a 06 ct 713 with an ami 370. The truck is new to me a few months ago and after getting it back to almost new The fan has decided to be engaged in a hunting mode, sounds like it is going to full engage and then releasing, I brought it to the dealer and could not pinpoint it, the fan has 5 wires going to it , no air lines, I saw a wiring diagram in a post but it did not look like my engine my ac works fine and engine runs at 165 deg If anyone has a manual or info I would greatly appreciate it I tried buying a manual from Mack with no luck

Thank you I saw the pressure switches above the brake pedal I will check behind the clutch

I am looking for the brake light switch on 2006 ct713 mack granite I need to hook up a brake controller for a 8k gvw trailer and cant find where to get the signal from thanks for any help!