Chevrolet - City Express - Workshop Manual - 2015 - 2015

GM Bulletin No.: 14907 Date: February 2015 Service Bulletin SB-10057681-1812 SERVICE UPDATE SUBJECT: Service Update for Inventory and Customer Vehicles Transmission Replacement Expires with Base Warranty MODELS: 2015 Chevrolet City Express This service update includes vehicles in dealer inventory and customer vehicles that return to the dealership for any reason. This bulletin will expire at the end of the involved vehicle's New Vehicle Limited Warranty period. PURPOSE This bulletin provides a service procedure to replace the transmission on certain 2015 model year Chevrolet City Express vehicles. The continuous variable transmissions in these vehicles were misbuilt with nonconforming parts that can lead to a loss of oil pressure in the torque converter, which results in a reduction in acceleration performance. This service procedure should be completed as soon as possible on involved vehicles currently in dealer inventory and customer vehicles that return to the dealer for any type of service during the New Vehicle Limited Warranty coverage period. VEHICLES INVOLVED All involved vehicles are identified by VIN in the Global Warranty Management System – Investigate Vehicle History Application. Dealership technicians should always check this site to confirm vehicle involvement prior to beginning any required inspections and/or repairs. It is important to routinely use this tool to verify eligibility because not all similar vehicles may be involved regardless of description or option content. Additionally, a list of involved vehicles currently in dealer inventory is available on the “Service Update Bulletin Information” link under the “Service” tab in GM GlobalConnect. Customer vehicles that return for service, for any reason, and are still covered under the vehicle's base warranty should also be checked for vehicle eligibility. Copyright 2015 General Motors. All Rights Reserved. Page 2 February 2015 Bulletin No.: 14907 PART INFORMATION Parts required to complete this service update are to be obtained from General Motors Customer Care and Aftersales (GMCC&A). Please refer to your “involved vehicles listing” before ordering parts. Normal orders should be placed on a DRO = Daily Replenishment Order. In an emergency situation, parts should be ordered on a CSO = Customer Special Order. Part Number 19317710 19316303 19316302 19260800 19317140 19317005 19317004 19316497 19316146 19317610 19317613 Obtain Locally Description TRANSAXLE, AUTO (SERVICE) GASKET, EXH MANIF GASKET, EXHAUST MANIF FLUID, A/TRANS (ACDELCO CVT FLUID) (32 Oz) COOLANT, ENGINE (BLUE) (1 GALLON) SEAL, A/C EVPR HOSE (O RING) SEAL, A/C CNDSR HOSE (O RING) SEAL, TRANS FLUID FIL TUBE (O RING) STEERING LINKAGE OUTER TIE ROD NUT CVT COOLER BYPASS VALVE SEAL, TRANS FLUID COOLER PIPE COTTER PIN Quantity/Vehicle 1 1 (if req’d) 1 (if req’d) 8 1 1 1 1 2 1 4 2 SERVICE PROCEDURE 1. Raise hood. 2. Remove the 15A fuse F48UA from the Under Hood Fuse Block X50A to disable the fuel pump relay. Refer to X50A Fuse Block – Under Hood Top View in SI. 3. Relieve fuel pressure from system. Refer to Fuel Pressure Relief in SI. 4. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement in SI. 5. Disconnect and remove battery from vehicle. Refer to Battery Replacement in SI. 3944411 6. Remove the TCM transmission control module (5) from the mounting bracket (3). Refer to Transmission Control Module Replacement in SI. Page 3 February 2015 Bulletin No.: 14907 3816322 7. Remove the ECM engine control module (2) from the mounting bracket. Refer to Engine Control Module Replacement in SI. 8. Unclip wiring harness retainers, and remove the battery tray. Refer to Battery Tray Replacement in SI. 3905434 9. Disconnect the electrical connectors (3) from the battery positive cable junction block (4). Refer to Battery Positive Cable Junction Block Replacement in SI. Page 4 February 2015 Bulletin No.: 14907 4061878 10. Remove the engine ground strap (1) located forward of the radiator surge tank and windshield washer fill. 3807744 11. Relocate the radiator surge tank (3) and remove the coolant pressure cap. 12. Recover refrigerant from A/C system. Refer to Refrigerant Recovery and Recharging in SI. 13. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in SI. Page 5 February 2015 Bulletin No.: 14907 3721561 14. Remove the lower noise shield fasteners (1, 2) and shield (3). Refer to Engine Compartment Lower Noise Shield Replacement in SI. 3807720 15. Remove the drain plug screw (1). Drain the cooling system into a clean container for refill. Refer to Cooling System Draining and Filling in SI. 16. Drain the transmission fluid. Refer to Transmission Fluid Drain and Fill (Repair) in SI. 17. Remove both front tires and wheels. Refer to Tire and Wheel Removal and Installation in SI. Page 6 February 2015 Bulletin No.: 14907 3721182 18. Remove both front wheelhouse fasteners (1, 2, 3) and liners (4). Refer to Front Wheelhouse Liner Replacement in SI. 19. Remove the engine drive belt. Refer to Drive Belt Replacement in SI. 3924361 20. Remove the A/C compressor. Refer to Air Conditioning Compressor Replacement in SI. 3807744 21. Remove the radiator outlet hose (6) from the bottom of the radiator. Refer to Radiator Outlet Hose Replacement in SI. Page 7 February 2015 Bulletin No.: 14907 3967539 22. Remove the CVT fluid cooler lines from the bypass valve (1) located in the LH wheelhouse. Refer to Transmission Cooler Bypass Valve Replacement in SI. 4061880 23. Release the locking handle, and disconnect the Engine Wiring Harness (1) located in the LH wheelhouse. 24. Disconnect the transmission ground strap (2) located in the LH wheelhouse. Page 8 February 2015 Bulletin No.: 14907 3819551 25. Disconnect the heated oxygen sensor electrical connector (11) from the forward harness. 26. Remove the exhaust front pipe (8). Refer to Exhaust Front Pipe Replacement in SI. 27. Lower the vehicle. 3807744 28. Remove the radiator inlet hose (5) from the radiator. Refer to Radiator Inlet Hose Replacement in SI. 29. Disconnect the heater core inlet and outlet hoses from the engine. Page 9 February 2015 Bulletin No.: 14907 4061881 30. Disconnect the fuel feed tube (1) at the engine. Refer to Fuel Injection Fuel Rail Assembly Replacement in SI. 31. Disconnect the Range Selector Lever Cable at the transmission. Refer to Range Selector Lever Cable Replacement in SI. 32. Disconnect the brake booster vacuum hose at the rear of the engine intake manifold. Refer to Power Brake Booster Vacuum Hose Replacement in SI. 33. Disconnect the evaporative emission canister hose at the engine intake manifold throttle body. 34. Raise the vehicle. 3878106 35. Remove LH stabilizer shaft link (4) upper fastener (7). 36. Remove the left hand drive shaft. Refer to Front Wheel Drive Shaft Replacement (LH) in SI. 37. Remove the RH stabilizer shaft link upper fastener. Page 10 February 2015 Bulletin No.: 14907 38. Remove the right hand drive shaft. Refer to Front Wheel Drive Shaft Replacement (RH) in SI. 3940902 Note: Place match marks on the steering gear pinion shaft, and intermediate steering shaft yoke before disassembly. 39. Remove the intermediate steering shaft lower bolt (2). Refer to Intermediate Steering Shaft Replacement in SI. 3965609 40. Remove the transmission rear mount (13). Refer to Transmission Rear Mount Replacement in SI. 41. Position the support table under the front suspension frame assembly. Page 11 February 2015 Bulletin No.: 14907 4061884 42. Remove the drivetrain and front suspension frame along with still attached steering gear rack. Refer to Drivetrain and Front Suspension Frame Replacement in SI. 43. Position the engine support table under the powertrain assembly. 3965609 44. Remove the LH side fasteners (1) from the mount (3). Refer to Engine Mount Replacement Left Side in SI. 45. Remove the RH side fasteners (8) from the mount (10). Refer to Engine Mount Replacement - Right Side in SI. 46. Carefully raise the vehicle body up and away from the powertrain. Note: The transmission oil cooler and pipes must be flushed and flow checked using DT-45096 when the transmission is replaced. Use compressed air to blow the residual transmission fluid out of the oil cooler and lines before and after flush. Refer to Transmission Fluid Cooler Flushing and Flow Test for directions. 47. Flush CVT cooler prior to installation of transmission. Note: Copy the new transmission serial number, and QR code, for programming information. Refer to Control Solenoid Valve and Transmission Control Module Assembly Programming and Setup in SI. Page 12 February 2015 Bulletin No.: 14907 4009316 48. Replace the transmission. Refer to Transmission Replacement in SI. INSTALLATION PROCEDURE 49. Carefully lower the vehicle until the frame contacts the engine and transmission support table. 3965609 50. Install the RH engine mount fasteners (8). Refer to Engine Mount Replacement - Right Side in SI. 51. Install the LH engine mount fasteners (2). Refer to Engine Mount Replacement - Left Side in SI. 52. Remove the engine support fixture. 53. Raise the vehicle. Page 13 February 2015 Bulletin No.: 14907 4061884 54. Position the support table under the front suspension frame assembly. 55. Install the drivetrain and front suspension frame along with still attached steering gear rack. Refer to Drivetrain and Front Suspension Frame Replacement in SI. 3965609 56. Install the transmission rear mount (13). Refer to Transmission Rear Mount Replacement in SI. 3940902 Page 14 February 2015 Bulletin No.: 14907 57. Install the intermediate steering shaft lower bolt (2) with the indexed shafts. Refer to Intermediate Steering Shaft Replacement in SI. 58. Install the right hand drive shaft. Refer to Front Wheel Drive Shaft Replacement (RH) in SI. 3878106 59. Install the right hand stabilizer shaft upper link fastener (7). 60. Install the left hand drive shaft. Refer to Front Wheel Drive Shaft Replacement (LH) in SI. 61. Install the left hand stabilizer shaft upper link fastener. 4061880 62. Connect the Engine Wiring Harness (1) located in the LH wheelhouse, and secure the locking handle. 63. Connect the transmission ground strap (2) to the transmission in the LH wheelhouse area. Page 15 February 2015 Bulletin No.: 14907 3967539 64. Install the CVT lines from the cooler to the bypass valve (1). 3819551 65. Install the exhaust front pipe (8). Refer to Exhaust Front Pipe Replacement in SI. 66. Connect the heated oxygen sensor electrical connector (11) to the forward harness. Page 16 February 2015 Bulletin No.: 14907 3807744 67. Install the radiator outlet hose (6) to the bottom of the radiator (1). Refer to Radiator Outlet Hose Replacement in SI. 3807744 68. Install the A/C compressor. Refer to Air Conditioning Compressor Replacement in SI. Page 17 February 2015 Bulletin No.: 14907 3807720 69. Install the drain plug screw (1) in the bottom of the radiator. Refer to Cooling System Draining and Filling in SI. 70. Install the engine drive belt. Refer to Drive Belt Replacement in SI. 3721182 71. Install both front wheelhouse liners (4), with fasteners (1, 2, 3). Refer to Front Wheelhouse Liner Replacement in SI. 72. Install both front tires and wheels. Refer to Tire and Wheel Removal and Installation in SI. Page 18 February 2015 Bulletin No.: 14907 3721561 73. Install the lower noise shield (3) with fasteners (1, 2). Refer to Engine Compartment Lower Noise Shield Replacement in SI. 74. Lower the vehicle. 75. Connect the evaporative emission canister hose at the engine intake manifold throttle body. 76. Connect the brake booster vacuum hose at the rear of the engine intake manifold. Refer to Power Brake Booster Vacuum Hose Replacement in SI. 77. Connect the Range Selector Lever Cable at the transmission. Refer to Range Selector Lever Cable Replacement in SI. 78. Connect the fuel feed tube at the engine. Refer to Fuel Injection Fuel Rail Assembly Replacement in SI. 79. Connect the heater core inlet and outlet hoses to the engine. 3807744 81. Connect the radiator inlet hose (5) to the radiator. Refer to Radiator Inlet Hose Replacement in SI. 82. Install the radiator surge tank (3). Page 19 February 2015 Bulletin No.: 14907 4061878 83. Install the engine ground strap (1) located forward of the radiator surge tank. 84. Install the battery tray, and attach the wiring harness. Refer to Battery Tray Replacement in SI. 3816322 85. Install the ECM engine control module (2) to the mounting bracket. Refer to Engine Control Module Replacement in SI. Page 20 February 2015 Bulletin No.: 14907 3905434 86. Connect the electrical connectors (3) to the battery positive cable junction block (4). Refer to Battery Positive Cable Junction Block Replacement in SI. 3944411 87. Install the TCM transmission control module (5) to the mounting bracket (3). Refer to Transmission Control Module Replacement in SI. 88. Install the battery. Refer to Battery Replacement in SI. 89. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement in SI. 90. Fill the cooling system. Refer to Cooling System Draining and Filling in SI. 91. Check the transmission fluid, and fill if needed. Refer to Transmission Fluid Drain and Fill (Repair) in SI. Use only approved CVT fluid. 92. Recharge the A/C system. Refer to Refrigerant Recovery and Recharging in SI. 93. Check the vehicle for codes. Refer to Diagnostic System Check – Vehicle in SI. Page 21 February 2015 Bulletin No.: 14907 Note: The replacement transmission includes a CD to update the TCM after the CVT installation. If no CD is available, contact TCSC. Refer to Control Solenoid Valve and Transmission Control Module Assembly Programming and Setup in SI. 94. Reprogram the Transmission Control Module. Refer to Control Solenoid Valve and Transmission Control Module Assembly Programming and Setup in SI. 95. Check and set vehicle alignment. Refer to Wheel Alignment Specifications in SI. WARRANTY TRANSACTION INFORMATION Submit a transaction using the table below. All transactions should be submitted as a ZFAT transaction type, unless noted otherwise. Labor Code 9101237 * Description Transmission Replacement Labor Time 14.0* Net Item ** Labor time shown includes recover/recharge of A/C system, flush CVT cooler, wheel alignment, and reprogramming of TCM ** Submit for the actual cost of the 2 cotter pins needed to perform the required repairs, not to exceed $0.25 USD. DEALER PROGRAM RESPONSIBILITY Whenever a vehicle subject to this service update enters your vehicle inventory, or is in your facility for service in the future, and the vehicle is still covered under the New Vehicle Limited Warranty, you must take the steps necessary to be sure the service update correction has been made before selling or releasing the vehicle. GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the tools, equipment, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your dealer for information on whether your vehicle may benefit from the information. We Support Voluntary Technician Certification