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1999 Pontiac Grand Prix | Grand Prix (VIN W) Service Manual | Transmission/Transaxle | Automatic Transaxle - 4T60-E | Diagnostic Information and Procedures | Document ID: 36006
No 2-3 Shift
No 2-3 Shift
Checks
Cause
Control Valve Assembly
• Stuck 2-3 shift valve
• Stuck 3-2 manual downshift valve
Channel Plate Gasket
Mispositioned or damaged
Driven Sprocket Support
Blocked Third clutch passage
Input Housing and Shaft Assembly
• Damaged seals
• Blocked oil passages
Third Clutch Assembly
• Burned clutch plates
• Damaged piston or seals
• Damaged checkball assembly in the piston
Third Roller Clutch Assembly
• Damaged cage
• Rollers out of the cage
• Damaged springs
• Misassembled input sun gear shaft
• No third gear in Manual Lo
• No engine braking in Manual Lo
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WizAire CAI w/9" K&N & HV3, 2.5" d/p w/h/f cat, Cobra CB, PowerSlot slots w/Hawk HPS, GR-2s, GMPP handling kit, NextLevel STBs, Pilot Sport A/S Plus tires.
98 L36/MM5
RaC
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