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 MANUALSCHEVROLET1998ASTRO VAN 2WD V6-4.3L VIN WREPAIR AND DIAGNOSISENGINE, COOLING AND EXHAUSTENGINESERVICE AND REPAIRENGINE OVERHAUL (UNIT REPAIR)ENGINE ASSEMBLYENGINE FRONT COVER INSTALLATION
1998 Chevrolet Astro Van 2WD V6-4.3L VIN W
Engine Front Cover Installation
1998 Chevrolet Astro Van 2WD V6-4.3L VIN WSECTION Engine Front Cover Installation
1. Install the NEW engine front cover.
IMPORTANT: Once the composite engine front cover is removed DO NOT reinstall the engine front cover. Always install a NEW engine front cover.
2. Install the engine front cover bolts.
^ Tighten the bolts to 12 Nm (106 inch lbs.).
NOTICE: Refer to Fastener Notice in Service Precautions.
3. Lubricate the NEW crankshaft position sensor seal (O-ring) with clean engine oil.
IMPORTANT: DO NOT reuse the original crankshaft position sensor seal (0-ring). When installing the crankshaft position sensor be sure the crankshaft position sensor is fully seated and held stationary in the engine front cover crankshaft position sensor bore. A crankshaft position sensor that is not completely seated will cock in the engine front cover and may result in erratic engine operation.
4. Install the NEW crankshaft position sensor seal (O-ring) onto the crankshaft position sensor.
5. Install crankshaft position sensor.
6. Install crankshaft position sensor bolt.
^ Tighten the crankshaft position sensor bolt to 8 Nm (71 inch 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.