B&M 70226 TRANSKIT FOR GM 4L80E TRANSMISSION - Manual (Page 9)

9
ERROR CONDITION WHERE TO LOOK FOR CAUSE
High or Low Oil Pressure Oil Pump - Pressure Regulator Valve Stuck.
- P/R Retainnig Ring not fully seated in groove.
Oil Filter - Cracks in Filter Pickup Tube.
- Pickup Tube Seal Damaged.
- Wrong grease used on reassembly (clogged solenoid
filter).
Wire loom - Electrical connectors not fully engaged.
Valve Body Assembly - Spacer Plate or Gaskets misassembled or damaged.
- Check Balls omitted or misassembled.
- Valve Body or Accumulator Housing bolts loose.
Pressure Control Solenoid - Stuck “ON”
Harsh/Soft Shifts Valve Body Assembly - Wrong holes drilled is Spacer Plate.
- Spacer Plate or gaskets misassembled or damaged.
- Check Balls omitted or misassembled.
Oil Pump - Pressure Regulator Valve Stuck.
Accumulator Assembly - Wrong Spring or Spacer installed.
- Damaged or missing Accumulator Housing gasket.
- Accumulator Housing bolts loose.
Inconsistent or No Shifts Valve Body Assembly - Spacer Plate or gaskets misassembled or damaged.
- Pressure Switch Assembly connector not fully engaged.
- Pressure Swith Assembly/Valve Body bolts loose.
External Linkage - Manual Shift Lever Linkage misadjusted.
Wire loom - Electrical connectors not fully engaged.
No or Slips in 1st Gear Low Oil Pressure - (See above)
Valve Body Assembly - Spacer Plate or gaskets misassembled or damaged.
- Solenoid disconnected or damaged.
No or Slipping 2-3 Shift Valve Body Assembly - Spacer Plate or gaskets misassembled or damaged.
No or Slipping 3-4 Shift Valve Body Assembly - Spacer Plate or gaskets misassembled or damaged.
- Solenoid disconnected or damaged.
No or Slipping Reverse Valve Body Assembly - Spacer Plate or gaskets misassembled or damaged.
Oil Pump - P/R Retaining Ring not fully seated in groove.
External Linkage - Manual Shift Lever Linkage Misadjusted.
No TCC Apply TCC Solenoid - Solenoid disconnected or wiring damaged.