Throttle Position Sensor: Service and Repair

2002 Cadillac Eldorado V8-4.6L VIN YSECTION Service and Repair
REMOVAL PROCEDURE




1. Remove the idle air control (IAC) electrical connector (1) from the IAC sensor (4).
2. Remove the manifold absolute pressure (MAP) sensor electrical connector from the MAP sensor.
3. Remove the water pump belt cover.
4. Remove the throttle position (TP) sensor retaining screws from the TP sensor (3).
5. Remove the TP sensor electrical connector (2) from the TP sensor (3).

INSTALLATION PROCEDURE




1. Install the new O-ring on to the TP sensor.
2. Connect the TP sensor electrical connector (2) to the TP sensor (3).

NOTE: Refer to Fastener Notice in Service Precautions.

3. Install the TP sensor (2) on to the throttle body (1).

Tighten
Tighten the TP sensor screws to 2.3 N.m (20 lb in).

4. Connect the IAC electrical connector (1) to the IAC sensor (4).
5. Connect the MAP sensor electrical connector to the MAP sensor.
6. Install the water pump belt and tensioner cover.
7. Perform the TP sensor learn procedure.

TP Sensor Learn Procedure
7.1. Turn ignition switch to the RUN/ON position.
7.2. Wait 1 minute.
7.3. Turn ignition switch to the LOCK/OFF position.
7.4. Wait 15 seconds.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.