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.
1985 Toyota Tercel BaseFACTORY OEM SERVICE PROCEDURE
Land Cruiser
- Connect tachometer to engine. Start engine and check that engine idles properly. Pinch off hose to vacuum switch.
- Gradually increase engine speed to 2000 RPM (2300 RPM for Corolla). Engine should misfire slightly between 1800-3000 RPM as engine speed is raised.NOTE: Perform this procedure quickly to avoid overheating and damage to converter.
- Release hose and raise engine speed, checking to see that engine runs smoothly. Unplug wiring connector to solenoid valve. Engine should now idle rough. If engine responds as indicated, system is operating normally. Stop engine, and reconnect wiring.
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.