No codes were ever set. As I pulled out on the road, the thing would fall on its face and buck and jerk. It was a scary and sudden loss of power. I diagnosed it by looking at the scan tool data for the Throttle Position Sensor and when the Jeep acted up, the TPS value was frozen, even though I was giving more and more throttle.
Common symptoms of a bad throttle body include dirt and grime, the check engine light, and an erratic idle. Your Grand Cherokeeā€™s throttle body controls the amount of air that enters the engine. You control the throttle body position with the gas pedal. So, the symptoms of a bad throttle body will all affect how the vehicle feels responding
9. Check for excessive foam on dipstick after normal driving. Check for loose pump bolts, defective gasket. Replace pump . assembly if needed. Strangely enough the manual doesn't mention the speed sensor as a cause of delayed shifting, but the output speed sensor on the 42RE is used by the TCM and shared with the PCM.
Shop OEM Mopar Throttle Position Sensors at wholesale prices. Ship fast and save more on MoparPartsGiant.com. Backed by Mopar's warranty, Throttle Position Sensors restore factory performance. Contact Us : Live Chat or 1-888-511-3595 May 30, 2023 by Jason. If your Jeep Cherokee has a faulty throttle body, it can cause it to run terribly. Common symptoms of a bad throttle body include dirt and grime, the check engine light, and an erratic idle. Your Cherokeeā€™s throttle body controls the amount of air that enters the engine. You control the throttle body position with the Damaged Throttle Due To Accident. If youā€™ve 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 carā€™s Je52Pu.
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    • jeep grand cherokee throttle position sensor symptoms