Workshop Repair and Service Manuals GMC SIERRA
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Transmission Transaxle

Engine Flywheel Replacement Flywheel Flexplate      Special ToolsJ 44643 Flywheel Holding Tool.J 45059 Angle Meter. For equivalent regional tools, refer to Special ToolsSpecial Tools. Removal Procedure Remove the transmission. Refer toTransmission Replacement.Install the J...
Engine Flywheel Replacement Flywheel Flexplate      Removal Procedure If equipped with an automatic transmission, remove the automatic transmission . RefertoTransmission Replacement.If equipped with a manual transmission, remove the clutch assembly. Refer toClutch Assembly...
Engine Flywheel Replacement Flywheel Flexplate      Removal ProcedureRemove the clutch assembly. Refer toClutch Assembly Replacement. Important:Note the position and direction of the engine flywheel before removal. The flywheeldoes not use a locating pin for alignment. Mark...
EVT Mode High - From Drive Range 4th Gear Automatic      EVT Mode High is used to maximize engine efficiency and fueleconomy under most normal driving conditions. The TCM processesinput signals from the input and output speed sensors, the TPsensor and other vehicle sensors to...
Exhaust Gas Recirculation Cooler Bypass Valve Replacement Automatic Transmission Oil Cooler      Exhaust Gas Recirculation Cooler Bypass Valve Replacement Callout Component Name Preliminary ProcedureRemove the turbocharger exhaust pipe. Refer toTurbocharger Exhaust Pipe Replacement.Remove the exhaust gas...
Fiber 4-5-6 Clutch Plate Inspection Automatic      Important: Measure as described below at a minimum of 3locations.Replace any 4–5–6 clutch fiber plate thatdoes not meet specifications.Measure the thickness of each 4–5–6clutch fiber plate-(1) at dimension A. Specification...
Fifth Range Automatic - part 2      The 3rd, 5th, and reverseclutch remains applied. With only one clutch applied, thetransmission goes to neutral. If electrical power is interrupted while the transmission isin fifth range, (fifth range converter operation) and...
Fifth Range Automatic      Before making a shift from fourth to fifth range, thetransmission control module-(TCM) makes certain all ofthe shift valves are in the correct position with shiftvalve-1 and shift valve-3 stroked and shiftvalve-2 de-stroked....
First Range Automatic - part 2      If electrical power is interrupted while the transmission isin first range, moving the manual selector valve toNeutral-(N) will cut off main pressure to the 1-2-3-4clutch and the clutch will be exhausted. The low and reverse...
First Range Automatic      When the selector lever is moved from Neutral-(N)to Drive-(D), the transmission shifts from neutral tofirst range operation. Shiftsolenoid-1-(SS1), SS2, and SS3 remainenergized. Pressure control solenoid-1-(PCS1)and the torque...
Fluid Filter and Manual Shift Detent Assembly Installation Automatic      Fluid Filter and Manual Shift Detent Assembly Installation Callout Component Name 1 Manual Shaft Detent Assembly Caution:Ensure the manual shaft detent assembly roller is centeredover the manual shaft detent...
Fluid Pump Cover Assembly - Case Assembly Side Automatic      Fluid Pump CoverAssembly-–-Case AssemblySide (1) Suction (2) Line (4) Decrease (9) Regulator Lube (12) PCS Line (13) Auxiliary Suction (14) Auxiliary Line (38) Exhaust (39) Seal Drainback...
Fluid Pump Cover Assembly - Torque Dampener Housing Assembly Side Automatic      Fluid Pump CoverAssembly-–-Torque Dampener HousingAssembly Side (1) Suction (2) Line (4) Decrease (7) Cooler Feed (8) Lube (9) Regulator Lube (12) PCS Line (13) Auxiliary Suction (14)...
Fluid Pump Cover - Case Side Automatic      Fluid Pump Cover – Case Side (1) Suction (2) Line (9) Center Lube (10) Regulator Apply (11) Compensator Feed (14) 3-5 ReverseClutch (26) 1-2-3-4 Clutch (34) 4-5-6Clutch (38) PCS TCC...
Fluid Pump Cover Cleaning and Inspection Automatic Transmission Unit Transmission Oil Pump      Fluid Pump Cover Cleaning and Inspection Callout Component Name Warning:Valve springs can be tightly compressed. Use care whenremoving retainers and plugs. Personal injury could result. Preliminary Procedure Clean...
Fluid Pump Cover Installation Automatic Transmission Unit Transmission Oil Pump      Fluid Pump Cover Installation Callout Component Name 1 Fluid Pump Cover Assembly 2 Fluid Pump Cover Bolts-M6-x-40-(Qty:-13) Note:Hand tighten only. 3 Alignment Tool and Bolt Caution:Refer...
Fluid Pump Cover Installation Automatic Transmission Unit Transmission Oil Pump      Fluid Pump Cover Installation Callout Component Name 1 A/Trans Fluid Pump Cover Assembly Note:Align pump with guide pins on the torque dampener housing. 2 A/Trans Fluid Pump Cover Bolts-M6-x1.0-x-45...
Fluid Pump Cover - Torque Converter Housing Side Automatic      Fluid Pump Cover– Torque Converter HousingSide (1) Suction (2) Line (4) Converter Feed (5) Converter Feed Limit (6) TCC Release (7) TCC Apply (8) Cooler Feed (9) Center Lube (10) Regulator...
Fluid Pump Rotor and Slide Measurement Automatic Transmission Unit Transmission Oil Pump      203 Important:Measure the rotor and slide thickness for surface wear. Therotor and slide measurements must both fall into the same thicknessrange. If the rotor and slide measurements do not fall into thesame thickness...
Fluid Pump Selective Measurement Automatic Transmission Unit Transmission Oil Pump      03 inch leara use spr1 (red) for .002 to .006 inch Fluid Pump Selective Measurement Callout Component Name Preliminary ProceduresClean and inspect all components and machined surfaces.After cleaning the transmission...
Fluid Pump Selective Measurement Automatic Transmission Unit Transmission Oil Pump      Fluid Pump Selective Measurement Callout Component Name 1 Pump Rotor Cavity Note:Measure the distance from the bottom of the gauge bar to the bottom of the pump rotorcavity. Refer toFluid Pump Selective...
Flywheel Housing Cleaning and Inspection Flywheel Flexplate      Remove the O-rings from the flywheel housing anddiscard.Clean the flywheel housing.Clean the flywheel housing mating surfaces.Clean the flywheel housing O-ring sealing area.Inspect the flywheel housing for cracks.Inspect...
Flywheel Housing Installation Flywheel Flexplate      Install the oil cooler adapter-(3) withgaskets-(1) and (4) to the oil cooler. Caution:Refer toFastener Caution. Install the oil cooler adapter to oil coolerbolts-(2) and tighten to25-Y(18-lb-ft).Apply a 2–3-mm wide...
Flywheel Housing Removal Flywheel Flexplate      Special Tools J 37228Seal Cutter For equivalent regional tools, refer toSpecial Tools. Remove the turbocharger oil return pipe nuts-(1)from the top of the flywheel housing.Remove the turbocharger oil return...