September 21, 2005
18 Troubleshooting Tips for 4R44E & 5R55E Transmissions
Bob Warnke
Remanufactured Valve Body
Internal
Pinion Washer 56582E-W
Fits .310" dia. pinion pins.
- Material: Bronze
- Thickness: 0.020"
-
Helps cure:
- Lost or damaged component
Thrust Bearing 56241
See part page for fitment details.
- Bearing Style: Enclosed
- Material: Hardened Steel
- Outer Dia.: 2.749"
- Thickness: 0.106"
- Inner Dia.: 2.082"
-
Helps cure:
- Bearing noise
- Bearing failure
Pump
Bell Housing/Pump Cover Bushing 56001X
Bell housing
- Material: Bimetal
- Bushing Style: Finish-in-Place
- Housing Bore: 1.741"
- Shaft Dia.: 1.615"
- Width: 0.630"
-
Helps cure:
- Repeat front seal leakage
- Worn pump bushing
- Worn converter hub
Valve Body
Boost Valve Kit 37947-03K
Increased Ratio
-
Helps cure:
- Delayed Reverse
- Soft shifts
- Low line pressure
- Poor modulator control
Boost Valve Kit 37947-01K
OE Ratio
-
Helps cure:
- Delayed Reverse
- Soft shifts
- Low line pressure
- Poor modulator control
Checkball 10000-08
Imidized Plastic, .250" Dia.
- Material: Imidized Plastic
- Dia.: 0.250"
-
Helps cure:
- Lost or damaged component
EPC & Engagement Control Kit 37947-11K
-
Helps cure:
- 2nd Gear starts
- Flare on 1-2 or 2-3 shift on 4R, or 2-3, 3-4 on a 5R
- No Reverse
- Poor shift quality
- Delayed Forward
- TCC slip
- Code P0741
-
Tooling:
- 37947-TL11
EPC & TCC Relief Valve Kit 37947-40K
Fits either of two locations.
-
Helps cure:
- Code P0741
- Flare shifts
- TCC slip
- Low EPC pressure
- Low maximum line pressure
-
Tooling:
- 37947-TL40
Elevated Pressure Main Pressure Regulator Spring 56947-17
-
Helps cure:
- Soft shifts
- Poor shift quality
- Low base line pressure
Inner Reverse Modulator Valve 37947-53
OE Size
-
Helps cure:
- Delayed Reverse
- Burnt Reverse band
- Direct clutch burned
- No Reverse
O-Ringed End Plug & Checkball Kit 37947-13K
-
Helps cure:
- Gear ratio & solenoid codes
- Erratic shifts
- No 3rd when hot
- No 4th when hot
- Shift timing change with temperature
Outer Reverse Modulator Valve 37947-52
OE Size
-
Helps cure:
- Delayed Reverse
- Burnt Reverse band
- Direct clutch burned
- No Reverse
Oversized Coast Clutch Valve Kit 37947-33K
-
Helps cure:
- No engine braking in D3 to low
- No 4th (4R44E/55E)
- No 2nd (5R44E/55E)
- No 5th (5R44E/55E)
- No coast clutch apply
-
Tooling:
- 37947-TL33
Oversized Solenoid Regulator Valve Kit 37947-48K
-
Helps cure:
- Wrong gear starts
- Solenoid performance codes
- TCC codes & concerns
- Harsh shifts
- Soft shifts
- Burnt TCC apply components
- Burnt clutches
-
Tooling:
- 37947-TL48
Pressure Regulator Sleeve Kit 37947-05K
-
Helps cure:
- Delayed engagement
- Poor shift quality
- Low line pressure
- High line pressure
- Overheating
- Low cooler flow at idle
-
Tooling:
- 37947-TL5
Pressure Regulator Valve 37947-54
OE Size
-
Helps cure:
- Delayed engagement
- Low line pressure
- High line pressure
- Overheating
- Low cooler flow at idle
TCC Modulator Sleeve Kit 37947-07K
-
Helps cure:
- Code 1741
- No lockup
- Engine stall on FWD engagement
- Poor converter fill & delayed engagements
- Low cooler flow
-
Tooling:
- 37947-TL5
TCC Regulator Sleeve Kit 37947-09K
-
Helps cure:
- Code 628, 1741
- TCC apply concerns
- TCC cycling
- TCC surge
- High TCC slip RPM
- Overheated fluid
- Overheated converter
-
Tooling:
- 37947-TL9
TCC Regulator Valve 37947-38
OE size
-
Helps cure:
- Lost, damaged or modified original valve
- Code 628, 1741
- TCC apply concerns
TCC Regulator Valve Spring Kit 37947-46K
-
Helps cure:
- Code P0741
- Low TCC apply pressure
- Low spring rate on 2.3L TCC regulator valve
- Damaged valve body casting
Zip Kit® 4R44E-5R55E-ZIP
-
Helps cure:
- Gear ratio & solenoid codes
- Low line rise
- Soft shifts
- Erratic shifts
- No 3rd when hot
- No 4th when hot
- 2nd Gear starts
- Delayed Forward
- TCC apply concerns
Case
Shift Lever Case Bore Repair Sleeve 56361-01K
-
Helps cure:
- Manual valve moves out of position
- Leaking manual shaft case seal
-
Tooling:
- 56361-TL
Servo/Band
Reverse Servo Sleeve Kit 56532-01K
-
Helps cure:
- Reverse band failure
- Rear servo bore wear
- Forward clutch failure
- Delayed Forward clutch
Other
Crankshaft Spacer 56000-CS6
- Material: Steel
- Bolt Holes: 6
- Outer Dia.: 2.972"
- Inner Dia.: 0.751"
- Thickness: 0.875"
-
Helps cure:
- Vibration
- Front pump/converter seal leaks
- Worn crankshaft spacer
- Cracked crankshaft spacer
- Cracked flywheel
- Converter misalignment
Crankshaft Spacer 56000-CS8
- Material: Steel
- Bolt Holes: 8
- Outer Dia.: 2.972"
- Inner Dia.: 0.751"
- Thickness: 0.872"
-
Helps cure:
- Vibration
- Leaking front pump seal
- Leaking converter seal
- Worn crankshaft spacer
- Cracked crankshaft spacer
- Cracked flywheel
- Converter misalignment