Technical Bulletin Listing January 2006 Transmission January 4L80E BMXA ZF5HP30 4L60E Page # J 98 982 983 984 985986F 986 987 # Pages J 2 Subject J Binds in Manual, 4th and Coast Clutches burned Electrical Control Locations Forward Bind and Reverse Slips Torque Converter Housing Identification Case Extension Identification Transmission Pan Identification Harsh -2 Upshift Page of
Technical Bulletin #98 4L80E Binds in Manual, 4th and coast clutches burned General Motors 4L80E Binds in Manual, 4th and Coast Clutches Burned Some vehicles with the 4L80E transmissions can bind up in Manual Low and also have burnt Coast and 4th Gear Clutches. These problems maybe caused by the 3-4 shift valve and check ball capsule not being installed correctly. Make sure the check ball capsule is pushed in fully before installing the roll pin Correctly installed Check Ball Capsule DS Page of
Technical Bulletin #982 BMXA Electrical Control Locations 0-05 Honda Civic BMXA Electrical Control Locations Some books are confusing when it comes to locations and descriptions of the electrical components. Proper locations are as follows: RS Page of
Technical Bulletin #983 ZF5HP30 Forward Bind and Reverse Slips 99-03 Aston Martin, 99-03 Bently, 92-0 BMW, 98-03 Rolls Royce ZF5HP30 Forward Bind and Reverse Slips The transmission binds in E mode first gear and then will free up on the -2 shift. With the winter mode button pressed so the snow flake is illuminated it will slip in reverse. The rubber F check ball has become too small due to the normally high operating temperatures. Replace the F check ball in the bath tub with a 0.250" steel check ball. DO NOT use a rubber or plastic type ball. RS Page of
Technical Bulletin #984 4L60E Torque Converter Housing Identification General Motors 4L60E Torque Converter Housing Identification () Domestic Bell V8- Corvette (2) Domestic Gen III Large Bell V8 (300 mm) (3) Domestic Gen I/II Large Bell V8/V6 (4) Holden Small Bell V6 (5) Holden Gen III Large Bell V8 (6) Domestic Small Bell V6 (7) Domestic Bell L6 (8) Hybrid Pick up Truck -V8 Bell WB Page of
Technical Bulletin #985 Case Extension Identification General Motors Case Extension Identification () Case Extension - used on C-Truck, G-Van, M-Van, S-Truck (2) Case Extension - Some Models WB Page of
Technical Bulletin #986 Transmiossion Pan Identification General Motors Transmission Pan Identification () Regular Sump (2) Deep Sump (3) Deep Sump with Drain Plug (4) Corvette (5) Hybrid Pickup truck - M33 Model (6) Colorado/Canyon (7) Pan Magnet Location WB Page of
Technical Bulletin #987 Harsh -2 Upshift 0-06 GM Passenger Cars and Light Duty Trucks, 03-06 Hummer H2, 06 Hummer H3,05-06 Saab 9-7X Harsh -2 Upshift The following four conditions have been found to cause the majority of consistent, harsh -2 shift comments. Chips/Sediment/Debris Contamination found in the valve body, -2 accumulator valve (37) bore, may cause the -2 accumulator valve to stick or hang up. A cracked -2 accumulator piston (56) that is allowing fluid to leak by. Chips/Sediment/Debris Contamination found in the valve body, 3-4 sequence valve (383) bore, may cause the 4-3 sequence valve to stick or hang up. Mislocated/Missing valve body-to-spacer plate check balls (6). When attempting to correct a consistent harsh -2 shift, the four conditions listed above should be inspected as possible causes. It is important to also refer to the appropriate Service Manual for further possible causes of this condition. FB Page of 2
Technical Bulletin #987 Portions of materials contained herein have been reprinted with permission of General Motors Corporation, Service and Parts Operations under Licence Agreement # 0228 FB Page 2 of 2