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 MANUALSCHEVROLET1993CORSICA 3.1 TREPAIR AND DIAGNOSIS (SINGLE PAGE)TRANSMISSIONAUTOMATIC TRANSOVERHAUL - 3T40
1993 Chevrolet Corsica 3.1 T
Overhaul - 3T40
1993 Chevrolet Corsica 3.1 TSECTION Overhaul - 3T40
- Application & Labor Times
- Identification
- Description
- Lubrication & Adjustments
- On-Vehicle Service
- Trouble Shooting
- Notes
- Symptoms
- Chatters Or Slips In 1st Gear
- Inoperative Or Slips In 1st Gear
- Inoperative Or Slips In Reverse
- Delayed Or No Upshifts
- Slipping Or Rough 1-2 Shift
- Delayed Or Rough 2-3 Shift
- Slipping, Soft Or Early 2-3 Shift
- Delayed Or No 2-3 Shift
- Delayed Neutral-To-Drive Shift
- Delays In Drive & Reverse
- No 2nd Gear In "D"
- All Gears Inoperative
- Inoperative In "D"
- Forward Gears Inoperative
- Transaxle Starts In 2nd Gear
- Transaxle Skips 2nd Gear
- Shifts From 3rd To 1st At High Speeds
- No Full Throttle Detent Downshift
- No Overrun Braking In "1", Reverse Okay
- Binds In 3rd Gear
- Inoperative In "2"
- Engine Stalls In "R" Or "D"
- Noise In All Gears
- High Pitched Whine or Popping
- Buzzing Or High Pitched Rattle
- Whine Or Growl Under Light Accessories
- Noise In 1st Or Reverse Gear
- Noise In 2nd Gear
- Hum During Light Acceleration (All Gears)
- Light Rattle In 2nd Or 3rd At 25-40 MPH
- Testing
- Clutch & Band Application Chart
- Torque Converter
- Torque Converter Clutch
- Removal & Installation
- Transaxle Disassembly
- Component Disassembly & Reassembly
- Notes
- Transaxle Case
- Differential & Final Drive
- Reaction Internal Gear
- Low Roller Clutch & Reaction Carrier Assembly
- Low-Reverse Clutch Housing
- Reaction Sun Gear & Input Drum End Play
- Input Carrier, Input Sun Gear & Internal Gear
- Forward Clutch Assembly
- Direct Clutch Assembly
- Intermediate Band
- Driven Sprocket Support
- Manual Shaft
- Drive Link Assembly (Chain, Sprockets & Turbine Shaft)
- Case Cover
- Control Valve Body & Oil Pump Assemblies
- Auxiliary Valve Body
- Intermediate Servo
- Governor/Speedometer Gear Or Governor/Speed Sensor Assembly
- Transaxle Disassembly
- Transaxle Reassembly
- Transaxle Specifications
- Torque Specifications
- Wiring Diagrams
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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.