The following are problems that your turbo actuator may undergo, and well explain them more into detail below. 1. Gearbox Failure. This is an issue caused by carbon build up. Thus, the motor burns out and causes the plastic worm gears to fail. When there is a low boost or your vehicle goes into limp mode, it could mean a failure in the gearbox. May 14, 2013 2012 Kenworth Paccar MX-13 Turbo issues 1. Engine brake switch in wrong position 2. Low voltage on ECM pin 49 3. Turbo speed malfunction high (this code is not showing any more). I work for Sunstate equipment equipment. 2012 mx 13 paccar. my name is work for Sunstate equipment equipment. 2012 mx 13 paccar. Problems with the vtg turbo actuator. who installs hot tubs. Paccar MX - 13 Oil Change - The Weekend Mechanic I would like to share Paccar mx13 service diagnostic manuals Everything is removed from the truck (DPFConverter and DEF tank and has been since it was tuned 8yrs ago 2102433PE 2140166PE Turbo Speed Sensor for Paccar MX 13 Good, Used Fuel Pressure Control Valve off of a Paccar MX13 engine It is the sensor that.