jeep grand cherokee throttle position sensor symptoms
Symptoms of a Faulty Throttle Position Sensor. An unexplainable bucking and jerking in the vehicle. Sudden idle surges. Sudden engine stalling without any apparent reason. Hesitation while accelerating. Sudden surges in speed while driving on the highway. Intermittently flashing of check engine light for no apparent reason.bought this 08 wk crd new end of May 08. For the first time ever (3 weeks after warranty expired) the electronic throttle control warning light came on at about 9 miles into my 13 mile commute after sitting at a red light and beginning to accelerate. The light never stayed on solid, but flashed right from the start. 5.2 Magnum Failing Camshaft Position Sensor Symptoms. Symptoms of 5.2 Magnum Cam position sensor problems include: Check engine light; P1391 and P0340 are common codes; Engine no start or hard start; Poor performance; Rough idling; Cylinder misfires; Cam Sensor Replacement Options. You can try cleaning off your sensor to see if that does the
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Changing out a TPS sensor to fix a weird shifting issue at 60mph and rough idle. LInk to Purchase on amazon -
The Throttle Position Sensor monitors the angle of the throttle blade. When the throttle is closed, the signal that is sent back to the ECM is around .45 volts. When the throttle is wide open, the signal will be around 5 volts. P0123 occurs when the voltage from your Grand Cherokeeâs TPS is higher than the upper operational range. Back-probe the connector at wires âBâ and âDâ. Measure the voltage. This is your OUTPUT voltage. Your OUTPUT voltage needs to be eighty-three percent of your REFERENCE voltage. For example 4.8 volts X .83=3.98 volts. Adjust the TPS until you have achieved this percentage. Move the throttle and look for smooth meter response up to the 4.49 at WOT. The other wire will be the ground and should show no voltage. Perform the test procedure again and wiggle and/or tap on the TPS while you watch the meter. If you notice any flat spots or abrupt changes in the meter readings, replace the TPS.Damaged Throttle Due To Accident. If youâve been in an accident, your throttle body may have been damaged. Even a minor fender bender can cause enough damage to the throttle body to cause problems. The most common component that wears out is the throttle position sensor (TPS). The TPS is responsible for sending a signal to your carâsSee also P0122 Code: Throttle Position Sensor/Switch A Circuit Low Input Safety Reminder About Handling the Throttle Body Please note that although the throttle body has an internal spring designed to close the throttle plate for safety, while the PCM is engaged, the throttle motor drives the throttle blade open and closed, so never put your
A P0406 code means that the powertrain control module (PCM) is receiving extremely high voltage signals from the exhaust gas recirculation (EGR) sensor. A faulty EGR position sensor/valve and wiring issues are conditions that can trigger a P0406 code. If this code is set, your vehicle may fail its next emissions test.