Pto problem

[Jason Chernoff]

I have a 2013 pinnacle with a mdrive trans. Truck is new to me and when I engage the pto to use the hoist it doesn’t always engage and sometimes kicks out after a few minutes. Seems to loose a lot of air when engaged and won’t build anymore . Stays at about 100psi. Can’t find any leaks

[Joey Mack]

There is a wire harness that curls over the frame under the cab on the left side.. I have replaced/repaired them before.  PTO issues is one of the symptoms..  they rub through and short out..  jojo

[Jason Chernoff]

Thanks. I check it out