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 MANUALSBUICK1987ELECTRA ESTATE WAGON V8-307 5.0LREPAIR AND DIAGNOSISTRANSMISSION AND DRIVETRAINAUTOMATIC TRANSMISSION/TRANSAXLESERVICE AND REPAIRPROCEDURESVALVE BODY REPLACE
1987 Buick Electra Estate Wagon V8-307 5.0L
Valve Body Replace
1987 Buick Electra Estate Wagon V8-307 5.0LSECTION Valve Body Replace
1. Drain transmission oil pan.
2. Remove oil pan and filter.
3. Remove screw and washer securing T.V. cable to transmission and disconnect the cable.
4. Remove throttle lever and bracket assembly. Use caution not to bend throttle lever link.
5. Disconnect electrical connectors at the 4-3 pressure switch and the 4th clutch pressure switch.
6. Remove solenoid attaching bolts, clips and solenoid assembly.
7. Remove manual detent roller and spring assembly.
8. Remove valve body retaining bolts while supporting valve body. Secure manual valve and remove valve body. Use caution not to lose the three check balls.
9. Reverse procedure to install. Torque valve body bolts to 12 ft lbs.
2. Remove oil pan and filter.
3. Remove screw and washer securing T.V. cable to transmission and disconnect the cable.
4. Remove throttle lever and bracket assembly. Use caution not to bend throttle lever link.
5. Disconnect electrical connectors at the 4-3 pressure switch and the 4th clutch pressure switch.
6. Remove solenoid attaching bolts, clips and solenoid assembly.
7. Remove manual detent roller and spring assembly.
8. Remove valve body retaining bolts while supporting valve body. Secure manual valve and remove valve body. Use caution not to lose the three check balls.
9. Reverse procedure to install. Torque valve body bolts to 12 ft lbs.
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.