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 MANUALSHYUNDAI1990EXCEL GLS, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)TRANSMISSIONAUTOMATIC TRANSOVERHAUL - KM175, KM176 & KM177
1990 Hyundai Excel GLS, Automatic
Overhaul - Km175, Km176 & Km177
1990 Hyundai Excel GLS, AutomaticSECTION Overhaul - Km175, Km176 & Km177
- Application
- Identification
- Description
- Operation
- Lubrication & Adjustments
- On-Vehicle Service
- Trouble Shooting
- Transaxle Electronic Control System
- Symptom Diagnosis
- Notes
- Damper Clutch Inoperative (Except KM177)
- Engine Stalls With Transaxle In Neutral, Drive Or Reverse
- Valve Or Wiring (Except KM177)
- Excessive Vibration & Shock During All Upshifts
- Excessive Vibration & Shock During 1-2 Or 3-4 Upshift
- Excess Vibration & Shock During 2-3 Upshift Or 4-3 Downshift
- Excess Vibration & Shock When Shifting From Drive To 2nd Gear Position
- Excess Vibration & Shock When Shifting Into Any Forward Gear Or Reverse
- Improper Shift Speeds
- Slips In Drive
- Slips In Reverse
- Sudden Engine RPM Increase During Upshift
- Sudden Engine RPM Increase & Vibration During 3-2 Downshift
- Vehicle Moves In Park Or Neutral
- Vehicle Starts Off Other Than 1st Gear
- Vehicle Will Not Move
- Vehicle Will Not Move In Any Forward Gear
- Vehicle Will Not Move In Reverse
- Will Not Shift Into 4th Gear
- Will Not Upshift From 2nd To 3rd Gear
- Testing
- Removal & Installation
- Torque Converter
- Transaxle Disassembly
- Component Disassembly & Reassembly
- Transaxle Reassembly
- Torque Specifications
- Transaxle Specifications
- Wiring Diagrams
- Technical Service Bulletins
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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.