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 DIAGNOSISPOWERTRAIN MANAGEMENTIGNITION SYSTEMCRANKSHAFT POSITION SENSORADJUSTMENTS
1990 Ford Ranger 4WD L4-140 2.3L SOHC
Crankshaft Position Sensor: Adjustments
1990 Ford Ranger 4WD L4-140 2.3L SOHCSECTION Adjustments
INITIAL TIMING
Initial timing is preset at 10~ plus or minus 2~ BTDC and is not adjustable.
HALL SENSOR
1. Position crankshaft timing sensor assembly. First slide electrical wires behind the inner timing belt cover. Then, hold the sensor assembly loosely in place with the retaining bolts, but do not tighten bolts at this time.
2. Install the large electrical connector onto the crankshaft timing sensor assembly.
CAUTION: Ensure the four wires to the large electrical connector are installed in the proper locations or the sensor will not function properly.
3. Reconnect both the crankshaft timing sensor electrical connectors to the engine harness, then rotate the crankshaft such that the outer vane on the crankshaft pulley hub assembly engages both sides of the crankshaft Hall Effect Sensor Positioner T89P-6316-A or equivalent, and tighten the sensor assembly retaining bolts.
4. Rotate the crankshaft such that the vane on the crankshaft pulley hub assembly is no longer engaged in the positioning tool. Then, remove crankshaft Hall Effect Sensor Positioner. Now install the new plastic wire harness retainer to secure the crankshaft timing sensor harness to its mounting bracket. Trim off excess.
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.