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 MANUALSCHEVROLET1986BLAZER FULL SIZE V8-350 5.7LREPAIR AND DIAGNOSISSTARTING AND CHARGINGSTARTING SYSTEMNEUTRAL SAFETY SWITCHSERVICE AND REPAIR
1986 Chevrolet Blazer Full Size V8-350 5.7L
Neutral Safety Switch: Service and Repair
1986 Chevrolet Blazer Full Size V8-350 5.7LSECTION Service and Repair
On some automatic transmission equipped vehicles, the back-up light switch is integral with the neutral start switch.
Fig. 13 Neutral start switch replacement. Series 10---30/1500---3500:
C, K, R & V MODELS
1. Disconnect battery ground cable.
2. Disconnect electrical connector at switch.
3. Remove switch mounting screws, then the switch.
4. Position shift lever in neutral gate notch.
5. Insert a .098 inch gauge pin into switch gauge hole as shown, Fig. 13, then assemble switch to column by inserting carrier tang into shift tube slot.
6. Install switch mounting screws into retainers. If retainers strip, they must be replaced.
7. Remove gauge pin, then position shift lever into Park to shear internal plastic pin in switch.
8. Return shift lever to neutral gate notch, then ensure switch gauge hole will accept .080 inch gauge pin. If not, loosen mounting screws, then rotate switch on column until .098 inch gauge pin can be reinserted into gauge hole.
9. Reconnect electrical connector and battery ground cable.
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.