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 MANUALSCHEVROLET1999ASTRO VAN 2WD V6-4.3L VIN WREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSOIL PRESSURE SENSORSERVICE AND REPAIR
1999 Chevrolet Astro Van 2WD V6-4.3L VIN W
Oil Pressure Sensor: Service and Repair
1999 Chevrolet Astro Van 2WD V6-4.3L VIN WSECTION Service and Repair
Removal Procedure
^ Tools Required
- J41712 Oil Pressure Switch Socket.
1. Remove the engine cover.
2. Disconnect the engine oil pressure sensor gauge electrical connector.
3. Hold the engine oil pressure gauge sensor fitting with a wrench.
4. Remove the engine oil pressure gauge sensor using J41712.
Important: Note the alignment of the engine oil pressure gauge sensor fitting prior to removal.
5. Remove the engine oil pressure gauge sensor fitting, if necessary.
Installation Procedure
^ Tools Required
- J 41712 Oil Pressure Switch Socket
Notice: Refer to Fastener Notice in Service Precautions.
1. Install the engine oil pressure gauge sensor fitting, if removed.
1.1. Tighten the engine oil pressure gauge sensor fitting to 15 Nm (11 ft. lbs.).
Important: Do not loosen the sensor fitting. Do not tighten the sensor fitting more than one turn.
1.2. Tighten the sensor fitting until properly align.
2. Install the engine oil pressure gauge sensor.
3. Hold the engine oil pressure gauge sensor fitting with a wrench to prevent from turning.
Using J41712 tighten the engine oil pressure gauge sensor to 30 Nm (22 ft. lbs.).
4. Install the engine oil pressure gauge sensor electrical connector.
5. Install the engine cover.
^ Tools Required
- J41712 Oil Pressure Switch Socket.
1. Remove the engine cover.
2. Disconnect the engine oil pressure sensor gauge electrical connector.
3. Hold the engine oil pressure gauge sensor fitting with a wrench.
4. Remove the engine oil pressure gauge sensor using J41712.
Important: Note the alignment of the engine oil pressure gauge sensor fitting prior to removal.
5. Remove the engine oil pressure gauge sensor fitting, if necessary.
Installation Procedure
^ Tools Required
- J 41712 Oil Pressure Switch Socket
Notice: Refer to Fastener Notice in Service Precautions.
1. Install the engine oil pressure gauge sensor fitting, if removed.
1.1. Tighten the engine oil pressure gauge sensor fitting to 15 Nm (11 ft. lbs.).
Important: Do not loosen the sensor fitting. Do not tighten the sensor fitting more than one turn.
1.2. Tighten the sensor fitting until properly align.
2. Install the engine oil pressure gauge sensor.
3. Hold the engine oil pressure gauge sensor fitting with a wrench to prevent from turning.
Using J41712 tighten the engine oil pressure gauge sensor to 30 Nm (22 ft. lbs.).
4. Install the engine oil pressure gauge sensor electrical connector.
5. Install the engine cover.
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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.