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 MANUALSCHEVROLET1985C 10 P/U 2WD V8-350 5.7LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTESTING AND INSPECTIONSCAN TOOL TESTING AND PROCEDURESLIMITATIONS
1985 Chevrolet C 10 P/U 2WD V8-350 5.7L
Limitations
1985 Chevrolet C 10 P/U 2WD V8-350 5.7LSECTION Limitations
The SCAN tool is capable of testing a variety of electronic engine control systems, and therefore not all tester positions will be applicable for each engine/ECM combination being tested. If a position is selected that is not applicable to the particular combination, this condition will be indicated on the tester. Refer to the manufacturer's instructions and the following descriptions for information regarding the SCAN tester positions and how they can aid diagnosis.
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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.