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 MANUALSCHEVROLET1988CAVALIER RS, 4D SEDAN, STANDARDREPAIR AND DIAGNOSISTRANSMISSIONAUTOMATIC TRANSOVERHAUL & TESTING - 125C/3T40TORQUE CONVERTERINSPECTION
1988 Chevrolet Cavalier RS, 4D Sedan, Standard
Torque Converter: Inspection
1988 Chevrolet Cavalier RS, 4D Sedan, StandardSECTION Inspection
- Insert a finger into splined inner race of roller clutch, and ensure stator turns freely clockwise, but does not turn or is very difficult to turn counterclockwise. DO NOT use driven sprocket support or shafts to turn race, as result may not be correct.
- Install a tachometer, and warm engine to normal operation temperature. With vehicle in 3rd gear and speed between 50-55 MPH, converter clutch should engage. Engine speed should drop 200 RPM when clutch is engaged.
- Using Torque Converter End Play Checker (J-35138), measure torque converter end play. See Fig 1 . End play for 245-mm torque converter is 0-.020" (0-.5 mm). End play for 298-mm torque converter is 0-.024" (0-.6 mm). Converter must be replaced if it leaks, is imbalanced or is contaminated with antifreeze.
- Check torque converter bushing-to-stator support clearance by cutting a narrow strip of paper about .003" (.07 mm) thick. Lay paper against the inside diameter of torque converter bushing. Install stator support into torque converter. No clearance should be present.
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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.