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.
1982 Honda Prelude Automatic TransFACTORY OEM SERVICE PROCEDURE
Cranking Solenoid Valve Check
- Complete "Dashpot System Check" as outlined previously. Ground coil secondary wire. Turn ignition to "111" and check that throttle control valve arm retracts as engine is cranked.
- If control valve operates, test is complete. If not, connect the connector and insert positive probe of voltmeter into Blue/Red wire on Accord and Prelude models or Green wire on Civic models.
- If no voltage was present, check wiring and fuses. If okay, replace starter relay located on relay bracket on Accord models, on fuse box/relay panel on Civic models or on left side of ignition coil on Prelude models.
- If voltage was present, disconnect hose between cranking solenoid valve and check valve at the solenoid valve. Crank the engine and check for vacuum.
- If vacuum was present, replace cranking solenoid valve and retest. If no vacuum, check vacuum line for leaks or blockage. If none, replace check valve and retest.
Factory Service Tools
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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.