This sensor can fail gradually or all at once.
Peterbilt throttle position sensor problems.
Sensor shows good on scanner seems to act up driving answered by a verified technician we use cookies to give you the best possible experience on our website.
Replaced throttle position sensor on 09 peterbuilt and am getting same problem.
The throttle position sensor is an electronic device that monitors the position of the throttle which directly relates to how far down you have pushed your gas pedal.
Turn key switch on and connect diagnostic tool.
The throttle position sensor can fail in several ways all of which result in poor fuel economy at best and performance limitations that may create a safety hazard for you and other motorists at worst.
Accelerator pedal position sensor 5 volt supply pin to the accelerator pedal position sensor return pin at the sensor connector of the oem harness.
When you have a problem like this the first thing you need to do is check the throttle positioning sensor.
This regulates the amount of air entering the engine which much then be matched by an appropriate computer provided amount of fuel to mix with the air.
Going to trace wires in morning and check resistivity in new tps.
Also often drivers confuse throttle issues with loss of speed vss sensor los off vss speed limiter rpm setting max speed limit and a bad ring gear for example can make the truck do some of the strangest things u can imagine from temporally loss of.
09 peterbuilt 389 with cummins isx.
Answered by a verified technician we use cookies to give you the best possible experience on our website.
The first problem we sought to fix on this kw was an intermittent loss of power.
Replaced throttle position sensor on foot petal.
Rjpierma24 location offline senior member reputation.
Can control engine rpms with cruise control still.
Truck is a 2005 peterbilt 379 with c15.
Yes go to 2c no go to 3a step 2c turn keyswitch off and disconnect the accelerator pedal position sensor from the oem harness.
4 75 to 5 25 vdc.
Today s modern cars trucks and suvs are all equipped with an electronic throttle control system that contains an accelerator pedal position app sensor this sensor s primary job is to monitor the position of the throttle pedal and send an electronic signal to open the throttle body.
Check engine light went off but still no throttle.
2015 peterbilt throttle loss.
When the throttle was put to the floor then released the throttle would go dead for a few seconds and the truck would lose power.
Driving the truck today and lost throttle and check engine light came on.
