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 MANUALSFORD1990RANGER 4WD L4-140 2.3L SOHCREPAIR AND DIAGNOSISSTARTING AND CHARGINGSTARTING SYSTEMNEUTRAL SAFETY SWITCHSERVICE AND REPAIR
1990 Ford Ranger 4WD L4-140 2.3L SOHC
Neutral Safety Switch: Service and Repair
1990 Ford Ranger 4WD L4-140 2.3L SOHCSECTION Service and Repair
Fig. 9 Neutral Start Switch:
REMOVAL
1. Disconnect battery ground cable, then raise and support vehicle.
2. Disconnect electrical connector from switch, Fig. 9, then remove switch and O-ring using neutral start switch socket T74P-77247-A or equivalent. Neutral start switch socket is a thin wall socket, other types of sockets could puncture walls of switch.
INSTALLATION
1. Install neutral start switch using socket and torque to 7-10 ft. lbs.
2. Connect electrical connector to switch, then lower vehicle.
3. Connect battery ground cable, then check operation of switch with parking brake engaged. Engine should start with selector lever in N or P only, and back-up lamps should illuminate with selector lever in R only.
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.