Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSBUICK1998LESABRE V6-3.8L VIN KREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTHROTTLE POSITION SENSORSERVICE AND REPAIRTHROTTLE POSITION (TP) SENSOR INSTALLATION
1998 Buick LeSabre V6-3.8L VIN K
Throttle Position (TP) Sensor Installation
1998 Buick LeSabre V6-3.8L VIN KSECTION Throttle Position (TP) Sensor Installation
INSTALLATION PROCEDURE
1. With the throttle valve in the normal closed position, install the Throttle Position (TP) sensor to the throttle body assembly.
TP Sensor Screws:
2. Apply thread-locking compound on the screws. Loctite (R), GM Part No. 1052624, or equivalent should be used.
3. Install the two TP sensor attaching screws.
^ Tighten the TP sensor attaching screws to 2 Nm (18 in. lbs.).
NOTICE: Refer to Fastener Notice in Service Precautions.
4. Install the TP sensor electrical connector to the TP sensor.
5. Install the Idle Air Control (IAC) valve electrical connector to the IAC valve.
MAF Sensor Electrical Connector:
6. Install the Mass Air Flow (MAF) sensor electrical connector to the MAF sensor.
7. Install the manifold vacuum lines to the throttle body.
8. Install the fuel injection sight shield. Refer to Engine Cover Replacement Service and Repair.
NOTICE: Refer to Fastener Notice in Service Precautions.
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.