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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET1990LUMINA APV V6-191 3.1LREPAIR AND DIAGNOSISTRANSMISSION AND DRIVETRAINAUTOMATIC TRANSMISSION/TRANSAXLEDRIVE CHAINSERVICE AND REPAIR
1990 Chevrolet Lumina APV V6-191 3.1L
Drive Chain: Service and Repair
1990 Chevrolet Lumina APV V6-191 3.1LSECTION Service and Repair
Fig. 11 Inspecting Drive Chain Wear:
1. Remove case cover as described under TRANSAXLE SIDE CASE COVER.
2. Midway between sprockets and at right angles to chain, push down bottom strand of chain until all slack is removed. Mark with crayon or marker on case at bottom side of chain link, Fig. 11.
3. Push upward on chain until all slack is removed. Mark with crayon or marker on case at bottom side of chain link.
4. Measure distance between marks. If distance is more than 7/8 inch, replace drive chain.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.