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 MANUALSCHEVROLET1985FORWARD CONTROL 6.2 J, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)TRANSMISSIONAUTOMATIC TRANSOVERHAUL - THM 400TRANSMISSION REASSEMBLYCONTROL VALVE BODY ASSEMBLY
1985 Chevrolet Forward Control 6.2 J, Standard
Control Valve Body Assembly
1985 Chevrolet Forward Control 6.2 J, StandardSECTION Control Valve Body Assembly
- Install control valve-to-spacer gasket. Install interchangeable governor pipes on control valve assembly. Install governor screen assembly with pointed end up. Install governor oil pipes and control valve assembly.
- Use care when aligning governor feed pipe over screen. Ensure gasket and spacer plate are not moved out of position and manual valve is indexed properly with pin on detent lever. Ensure governor pipes are seated in case holes.
- Using 2 guide pins, install control valve assembly and governor pipes on transmission. Be careful when aligning governor feed pipe over screen. Ensure gasket and spacer plate are not moved out of position and manual valve is indexed properly with pin on detent lever. Ensure governor pipes are properly seated in case holes.
- Start control valve body-to-case bolts. Remove guide pins. Install detent roller and spring assembly. Install and tighten remaining attaching bolts. Tighten solenoid attaching screws.
RENDER: 1.0x
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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.