Clifford's Throttle Position Sensor - Fixed

The problems I had with no Jake brake coming down from the mountains of West Virginia were due to a failing throttle position sensor (TPS).  It is like a noisy volume control on older audio equipment but since it is a sealed unit, there is no way to clean the contacts.

A couple of years ago, I removed it, worked the control through its entire range a bunch of times and basically, extended its life hoping to find a cheaper solution than the $170 replacement parts. It has worked ok since then but when I have checked the diagnostic faults log, there have been a growing number of inactive TPS faults indicating that it was getting much worse.

The TPS parts I picked up at Central Carolina Trucks in Kernersville, NC Just off of I-85/ I-40 was just a freightliner TPS and a six inch 3 wire- to-5 wire converter harness.  It took all of 15 minutes to replace it and not the estimated 2 hours shown in the parts catalog.  Easy job and now, no more TPS codes in my fault log..... and my Jake brake should work reliably from now on.

ttfn

Budd