Page 129 - Hydra-matic 6 Speed RWD Technician's Guide (October 2005)

DRIVE RANGE - 1ST GEAR
(Engine Braking)

LOSS OF DRIVE
• Fluid Pump (219)
- Seized
- Leaking

• 1-2-3-4 Clutch Piston (414)
- Jammed or cracked
- Leaking
• 1-2-3-4 Clutch Housing (427)
- Passage plugged
- Cracked

• 1-2-3-4 Clutch Piston Inner Seal (423) or Housing
Seals (424 & 425)
- Leaking
• 1-2-3-4 Clutch Regulator Valve (337)
- Stuck
• #1 Ball Check Valve
- Stuck
- Missing

• C1234 Pressure Control Solenoid 5
- Commanded/failed LOW (OFF)
- Leaking
• Low Clutch Sprag Assembly (467)
- Not holding
LOSS OF ENGINE BRAKING – 1ST GEAR

• #2 Ball Check Valve
- Stuck
- Missing
• Clutch Select Valve 2 (352)
- Stuck
• #3 Ball Check Valve
- Stuck
- Missing

• Clutch Select Valve 3 (352)
- Stuck
• Low and Reverse Clutch Piston (470)
- Leaking
- Jammed or cracked

SHIFT SHIFT 1-2-3-4 CL 2-6 CL 3-5 REV CL 4-5-6 CL 1-2-3-4 3-5 REV 4-5-6 2-6 LOW LOW
SOL SOL PC PC PC PC CLUTCH CLUTCH CLUTCH CLUTCH & REV CLUTCH
1 2 SOL 5 N.L. SOL 4 N.L. SOL 2 N.H. SOL 3 N.H. CLUTCH SPRAG
ON ON ON OFF OFF ON APPLIED APPLIED HOLDING
82A