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.
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HOMESERVICE MANUALSCHEVROLET2001CHEVY EXPRESS G3500, VAN PASSENGER EXTENDED, 6.5 FREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 193 (AUTOMATIC TRANSMISSION SERVICING)REMOVAL & INSTALLATION2-4 SERVOINSTALLATION
2001 Chevrolet Chevy Express G3500, Van Passenger Extended, 6.5 F
2-4 Servo: Installation
2001 Chevrolet Chevy Express G3500, Van Passenger Extended, 6.5 FSECTION Installation
WARNING: This page is about a different car, the 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.
- Install the new seals on the pistons and the servo cover.
- Lubricate the seals with clean transmission fluid.
- Install the 2-4 servo assembly into the 2-4 servo bore.
- Install the servo cover and "O" ring seal.
- Install the servo cover depressor.
- Tighten the bolt on the servo cover depressor to compress the servo cover. See Figure.
- Install the servo cover retaining ring.
- Remove the servo cover depressor from the oil pan flange.
- Install the oil pan bolt and tighten to specification. See TORQUE SPECIFICATIONS .
- Connect the oil cooler lines to the transmission, if removed. See OIL COOLER LINES .
- Raise the transmission into place.
- Remove the drain pan from under the vehicle.
- Install the exhaust manifold pipe.
- Install the transmission support. See TRANSMISSION SUPPORT in REMOVAL & INSTALLATION - BLAZER, JIMMY CANADIAN, SONOMA & S10 PICKUP article.
- Remove the transmission jack.
- Lower the vehicle.
- Fill transmission with appropriate fluid to proper level. See LUBRICATION .
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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.