This sensor can fail gradually or all at once.
Peterbilt throttle position sensor problems.
2009 peterbilt isx cummins code1241 throttle postion problem.
Truck is a 2005 peterbilt 379 with c15.
Can control engine rpms with cruise control still.
Answered by a verified technician we use cookies to give you the best possible experience on our website.
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.
Going to trace wires in morning and check resistivity in new tps.
Yes go to 2c no go to 3a step 2c turn keyswitch off and disconnect the accelerator pedal position sensor from the oem harness.
Rjpierma24 location offline senior member reputation.
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.
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.
Driving the truck today and lost throttle and check engine light came on.
It can also cause problems when changing gears or setting base ignition timing.
The days of having to constantly adjust the throttle cable due to a loose nut on the carburetor are long gone.
When you have a problem like this the first thing you need to do is check the throttle positioning sensor.
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 first problem we sought to fix on this kw was an intermittent loss of power.
09 peterbuilt 389 with cummins isx.
2015 peterbilt throttle loss.
4 75 to 5 25 vdc.
Check engine light went off but still no throttle.
Accelerator pedal position sensor 5 volt supply pin to the accelerator pedal position sensor return pin at the sensor connector of the oem harness.
Turn key switch on and connect diagnostic tool.
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.
