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 Mazda RX-7 GSL, Automatic TransFACTORY OEM SERVICE PROCEDURE
Coasting/Shutter Valve
- Warm engine to normal operating temperature. Stop engine. Disconnect air cleaner-to-coasting valve hose at air cleaner. Start engine and run at idle. Place finger over disconnected hose; air should not be drawn into hose.
- Disconnect electrical connector from shutter solenoid valve. Air should be drawn into disconnected hose and idle should fluctuate. At the same time, the coasting valve rod should be pulled into coasting valve about 0.4" (10mm), opening shutter valve. If coasting/shutter valve does not respond as outlined, replace coasting/shutter valve.
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.