Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2-1 Manual Band Servo Assemble
2008 Chevrolet Uplander V6-3.9LSECTION 2-1 Manual Band Servo Assemble
2-1 Manual Band Servo Assemble
1. Inspect the components of the 2-1 manual band servo for the following conditions:
* A damaged, worn or porous servo piston cylinder (114)
* A damaged, worn or porous servo piston (108)
* A damaged or worn servo piston pin (111)
* A broken or damaged servo piston spring (112)
* A broken or damaged servo piston cushion spring (109)
* A damaged or plugged servo exhaust screen (115)
* A damaged servo cover seal (105)
* A damaged servo piston seal (107)
* A damaged servo piston cylinder O-ring seal (113)
2. Assemble the servo piston spring retainer (110), the servo piston cushion spring (109) and the servo piston (108) onto the servo piston pin (111).
3. Use a small screwdriver in order to install the servo piston pin retaining ring (106).
4. Install the servo piston seal (107) onto the servo piston (108). Lubricate the servo piston seal (107) with automatic transmission fluid.
5. Assemble the servo exhaust screen (115) and the servo piston cylinder O-ring seal (113) onto the servo piston cylinder (114). Lubricate the servo piston cylinder O-ring seal (113) with automatic transmission fluid.
6. Attach the servo piston spring (112) to the servo piston assembly (106-111).
7. Install the servo piston and spring assembly (106-112) into the servo piston cylinder assembly (113-115) and set the assemblies aside.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.