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.
1980 American Motors AMX Automatic TransFACTORY OEM SERVICE PROCEDURE
Diverter Valve
- Start engine and run at idle. Check diverter vents. Little or no air should flow from vents. Accelerate engine to 2000-3000 RPM and rapidly close throttle. A strong flow of air should pass from diverter vents for 5 seconds.
- Slowly accelerate engine. Between 2500 and 3500 RPM air should begin to flow from diverter vents. Replace diverter valve if defective. Valve is not serviceable and must be replaced as an assembly.
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.