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 MANUALSEAGLE1990SUMMIT BASE, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)TRANSMISSIONAUTOMATIC TRANSOVERHAUL - F4A21, F4A22 & F4A23COMPONENT DISASSEMBLY & REASSEMBLYVALVE BODYREASSEMBLY (F4A20 SERIES)
1990 Eagle Summit Base, Standard
Reassembly (F4A20 Series)
1990 Eagle Summit Base, StandardSECTION Reassembly (F4A20 Series)
- Clean all parts with ATF. DO NOT use shop towels during reassembly operation.
- Check sliding surfaces of oil valves and valve body for scratches or damage. Check springs for deformation or damage.
- Lubricate with ATF and install valves, springs and plugs. See Fig 2 .
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.