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 MANUALSCHEVROLET1990LUMINA APV V6-191 3.1LREPAIR AND DIAGNOSISENGINE, COOLING AND EXHAUSTENGINETIMING COMPONENTSTIMING COVERSERVICE AND REPAIR
1990 Chevrolet Lumina APV V6-191 3.1L
Timing Cover: Service and Repair
1990 Chevrolet Lumina APV V6-191 3.1LSECTION Service and Repair
Fig. 1 Engine Mounts & Strut Assembly:
Fig. 3 Point Of Support For Transaxle-to-engine Mount:
1. Remove negative battery cable.
2. Drain cooling system.
3. Remove serpentine belt and tensioner, then power steering pump.
4. Raise vehicle, then remove inner splash panel.
5. Remove torsional dampener, then starter motor.
6. Place a suitable jack under the transaxle to engine mount, then remove engine mount bolts and mount, Figs. 1 and 3.
7. Raise engine, then remove cover bolts.
8. Remove oil pan, then radiator hose at the water pump.
9. Remove bypass hose, coolant overflow hose and heater coolant hose at cooling system fill pipe.
10. Remove upper front cover bolts, then serpentine belt pulley and front cover.
11. Reverse procedure to install, apply sealer No. 1052080 or equivalent to sealing surface of front cover.
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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.