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 MANUALSBUICK2006LUCERNE V6-3.8L VIN 2REPAIR AND DIAGNOSISDIAGRAMSEXPLODED VIEWSAUTOMATIC TRANSMISSION/TRANSAXLESYSTEM DIAGRAM4T80-E AUTOMATIC TRANSAXLEUPPER CONTROL VALVE BODY ASSEMBLY
2006 Buick Lucerne V6-3.8L VIN 2
Upper Control Valve Body Assembly
2006 Buick Lucerne V6-3.8L VIN 2SECTION Upper Control Valve Body Assembly
Disassembled Views
Upper Control Valve Body Assembly
Upper Control Valve Body Assembly:
15 - PC Solenoid Clamp Bolt
65 - Oil Hole Plug Ball
300 - Upper Control Valve Body
301 - Accumulator Boost Valve
302 - 1-2/3-4 Accumulator Valve
303 - 1-2/3-4 Accumulator Valve Bushing
304 - Coiled Spring Pin (2)
304 - Coiled Spring Pin (2)
306 - 2-3 Accumulator Valve
307 - Bore Plug (4)
307 - Bore Plug (4)
307 - Bore Plug (4)
307 - Bore Plug (4)
308 - Retainer Clip (4)
308 - Retainer Clip (4)
308 - Retainer Clip (4)
308 - Retainer Clip (4)
309 - Actuator Feed Limit Valve
310 - Actuator Feed Limit Spring
311 - Spring Retainer Plate
312 - Converter Feed Limit Valve
313 - Converter Feed Limit Spring
316 - Converter Clutch Control Spring
317 - Converter Clutch Control Valve
318 - Converter Regulator Valve
319 - Converter Clutch Regulator Spring
322 - TCC Enable Valve
323 - TCC Enable Valve Spring
336 - TCC Pressure Solenoid
337 - Spring Retainer Clip
338 - Pressure Control Solenoid Filter and Seal
339 - Pressure Control Solenoid (PCS)
340 - PC Solenoid Clamp (PCS Clamp)
343 - Orificed Cup Plug
345 - 2-3 Accumulator Piston
346 - 2-3 Accumulator Piston Seal
347 - 2-3 Accumulator Piston Spring
348 - 2-3 Accumulator Pin
349 - Snap Ring
349 - Snap Ring
350 - Temperature Sensor
351 - 2-3 Accumulator Piston Cushion Spring
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.