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 MANUALSBUICK1994ROADMASTER ESTATE WAGON V8-350 5.7LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTHROTTLE POSITION SENSORSERVICE AND REPAIR
1994 Buick Roadmaster Estate Wagon V8-350 5.7L
Throttle Position Sensor: Service and Repair
1994 Buick Roadmaster Estate Wagon V8-350 5.7LSECTION Service and Repair
Throttle Position Sensor (TPS):
REMOVE OR DISCONNECT:
1. TP sensor electrical connector
2. Remove two TP sensor attaching screws and retainers
3. TP sensor
INSTALL OR CONNECT:
1. With the throttle valve in the normally closed idle position, install throttle position sensor on throttle body assembly, making sure TP sensor pickup lever lines up with tang on throttle actuator lever.
2. Two TPS screws and tighten to 2.0 N-m (18.0 in lbs).
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.