Transmission Repair: From Fluid Changes to Complete Rebuilds

Transmission Types Explained

1. Automatic Transmissions
   • Planetary gear sets
   • Torque converter operation
   • Valve body function
2. Manual Transmissions
   • Synchronizer operation
   • Clutch systems
   • Shift linkage adjustment
3. CVT Transmissions
   • Belt/chain systems
   • Unique maintenance needs
   • Common failure points

Fluid Service

1. Change vs. Flush Debate
   • Pros and cons of each
   • Manufacturer recommendations
   • Filter service intervals
2. Fluid Types
   • ATF varieties
   • Manual transmission fluids
   • CVT-specific fluids

Common Problems

1. Automatic Issues
   • Slipping
   • Harsh shifts
   • Delayed engagement
2. Manual Problems
   • Grinding gears
   • Clutch chatter
   • Hydraulic issues

Diagnostic Procedures

• Pressure testing
• Line pressure checks
• Computer diagnostics

Rebuild Fundamentals

• Component inspection
• Clearance measurements
• Seal replacement

Conclusion: Transmission work requires precision but many maintenance tasks are accessible to DIYers with proper research.