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Automatic Transmission - Overhaul & Testing - 4L80E: Specifications Chevrolet Pickup C3500

Automatic Trans 1 illustration ~121 words

No Torque in Reverse & 3rd

Broken forward clutch hub, housing or snap ring.

No Torque in 2nd

Worn or damaged intermediate sprag.

TORQUE CONVERTER INSPECTION

Torque converter must be replaced for any of the following reasons.

  1. Damage To Pump Assembly
  2. Metal Particles Present in Oil
  3. Leaks in Hub Weld Area
  4. Crankshaft Pilot Broken Or Damaged
  5. Hub Scored Or Damaged
  6. Stator Failure
  7. Torque Converter Imbalance
  8. Engine Coolant Contamination
  9. Excessive End Play

TORQUE CONVERTER END PLAY CHECK

Mount Torque Converter End Play Fixture (J-35138) and Dial Gauge (J-8001) on stand to check end play. End play should be 0-.024" (0-0.60 mm). (Scheme 33)

Scheme 33

Scheme 33: TORQUE CONVERTER END PLAY CHECK

TRANSMISSION SPECIFICATIONS

ApplicationIn. (mm)
Clutch Clearances
Direct Clutch.121-.186 (3.07-4.72)
Forward Clutch
Except Model ZBP.121-.186 (3.07-4.72)
Model ZBP.087-.110 (2.21-2.81)
Intermediate Clutch.040-.107 (1.02-2.72)
Overrun Clutch.033-.094 (.838-2.39)
4th Clutch.040-.100 (1.01-2.54)
End Play
Front Unit.004-.022 (.10-.56)
Output/Reaction Carrier Pinion Gear.009-.024 (.023-.61)
Rear Unit.005-.025 (.13-.63)
Torque Converter0-.024 (0-.60)
Oil Pump Gears-To-Body Clearance.007-.0028 (.017-.071)

TRANSMISSION SPECIFICATIONS

TORQUE SPECIFICATIONS

ApplicationFt. Lbs. (N.m)
Center Support Bolt29 (39)
Connector Cooler Fitting Bolt29 (39)
Converter-To-Flexplate Bolt32 (43)
Extension Housing-To-Case Bolt25 (34)
Manual Shaft-To-Detent Lever Nut18 (24)
Oil Pan Bolt18 (24)
Parking Pawl Bracket-To-Case Bolt18 (24)
Pump Body-To-Case Bolt18 (24)
Pump Cover-To-Pump Body Bolt18 (24)
Rear Servo Cover-To-Case Bolt18 (24)
Rear Transmission Mount Bolt32 (43)
Rear Transmission Support Bracket Nut32 (43)
Transmission-To-Engine Bolt32 (43)
4th Clutch Bolt12 (16)
INCH Lbs. (N.m)
Accumulator Cover-To-Case Bolt98 (11)
Force Motor Bracket Bolt71 (8)
Lube Pipe Clamp Bolt98 (11)
Pipe Plug98 (11)
Speed Sensor Bolt98 (11)
Solenoid-To-Valve Body Bolt71 (8)
Temperature Sensor35 (4)
Valve Body-To-Case Bolt98 (11)

TORQUE SPECIFICATIONS