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 MANUALSCHEVROLET1986S10/T10 P/U 4WD L4-151 2.5LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTIGNITION SYSTEMHALL EFFECT SENSORDESCRIPTION AND OPERATION
1986 Chevrolet S10/T10 P/U 4WD L4-151 2.5L
Hall Effect Sensor: Description and Operation
1986 Chevrolet S10/T10 P/U 4WD L4-151 2.5LSECTION Description and Operation
The hall effect switch is used exclusively on the 2.5L S/T truck. The hall effect switch is mounted above the pick-up coil in the distributor. It takes the place of the R terminal on the ignition module. The switch is an electronic device, which puts out a voltage signal controlled by the presence or absence of a magnetic field of an electronic circuit. The system tells the ECM which cylinder to fire next.
RENDER: 1.0x
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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.