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 MANUALSCHEVROLET1990R 20 P/U 2WD V8-350 5.7LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTESTING AND INSPECTIONSCAN TOOL TESTING AND PROCEDURESPOSITIONSTRANSMISSION/TRANSAXLE GEAR POSITION SWITCH
1990 Chevrolet R 20 P/U 2WD V8-350 5.7L
Transmission/Transaxle Gear Position Switch
1990 Chevrolet R 20 P/U 2WD V8-350 5.7LSECTION Transmission/Transaxle Gear Position Switch
Indicates signal to ECM from switch. Indication may vary depending upon tool manufacturer. However, it is important that tool indicate change in status when gear is engaged.
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.