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 MANUALSBUICK1985CENTURY V6-231 3.8LREPAIR AND DIAGNOSISSTARTING AND CHARGINGSTARTING SYSTEMNEUTRAL SAFETY SWITCHSERVICE AND REPAIR
1985 Buick Century V6-231 3.8L
Neutral Safety Switch: Service and Repair
1985 Buick Century V6-231 3.8LSECTION Service and Repair
MODELS WITH AUTO. TRANS. & KEY RELEASE
1. Disconnect battery ground cable.
2. Place gear selector in Neutral.
3. Gently rock switch out of steering column.
4. Disconnect electrical connectors, then remove switch from vehicle.
5. Connect electrical connectors to new switch.
6. Align switch actuator with hole in shift tube.
7. Position connector side of switch into lower jacket cutout.
8. Push down front of switch, ensuring switch tangs snap into holes in steering column jacket.
9. Adjust switch by placing gear selector in Park position. The switch main housing and housing back should ratchet, providing proper adjustment.
10. If readjustment is needed, move housing as far as possible toward Low gear position, then repeat step 9.
MODELS WITH AUTO. TRANS. LESS KEY RELEASE
These vehicles do not use a neutral safety switch. A mechanical block on the transmission gear selector prevents starting the engine when the transmission is in any gear other than Park or Neutral.
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.