Question about 2002 Chevrolet Silverado 2500HD
Sorry can't give you pics but if you have someone press on gas pedal with hood up and you lee what moves the throttle position sensor is attached to the main pivot rod that is moving . it will be on the opposite side of the rod that the wires from the gas pedal are attached. the tps is just like a volume switch on a radio it moves along a resistance board to change voltage from low to high and the computer reads the numbers and converts that into positions of the gas pedal to understand what you want the engine to do. look for it to be at the end of that rod running through the opening that houses the butterfly to the throttlebody. There will be a three wire connector attached to it. Two screws should remove it plus remove connector. Hope this helps if so please reply and good luck
Posted on May 02, 2010
The TPS is located on the side of the throttle body on the outside surface. It has an electrical connection to it with three wires.
Posted on May 02, 2010
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Posted on Jan 02, 2017
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Throttle Position Sensor
The 3 wire Throttle Position Sensor (TPS) is mounted on the throttle body and is connected to the throttle blade.
The TPS is a 3wire variable resistor that provides the Powertrain Control Module (PCM) with an input signal (voltage) that represents the throttle blade position of the throttle body. The sensor is connected to the throttle blade shaft. As the position of the throttle blade changes, the resistance (output voltage) of the TPS changes.
The PCM supplies approximately 5 volts to the TPS. The TPS output voltage (input signal to the PCM) represents the throttle blade position. The PCM receives an input signal voltage from the TPS. This will vary in an approximate range of from .26 volts at minimum throttle opening (idle), to 4.49 volts at wide-open throttle. Along with inputs from other sensors, the PCM uses the TPS input to determine current engine operating conditions. In response to engine operating conditions, the PCM will adjust fuel injector pulse width and ignition timing.
The PCM needs to identify the actions and position of the throttle blade at all times. This information is needed to assist in performing the following calculations:
Ignition timing advance Fuel injection pulse-width Idle (learned value or minimum TPS) Off-idle (0.06 volt) Wide Open Throttle (WOT) open loop (2.608 volts above learned idle voltage) Deceleration fuel lean out Fuel cutoff during cranking at WOT (2.608 volts above learned idle voltage) A/C WOT cutoff (certain automatic transmissions only)
Removal & Installation
3.7L & 4.0L
Dec 31, 2011 | 2001 Jeep Grand Cherokee
Fig. 6: ...then, remove the throttle position sensor
Additionally, its possible that you are interesting in some section about this repair manual: Jeep Grand Cherokee 1993-1998 (ZJ Series).
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