Neutral Safety Switch: 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.