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 MANUALSCHEVROLET2008IMPALA V8-5.3LREPAIR AND DIAGNOSISTRANSMISSION AND DRIVETRAINAUTOMATIC TRANSMISSION/TRANSAXLEDIAGRAMSEXPLODED VIEWSCASE COVER ASSEMBLY
2008 Chevrolet Impala V8-5.3L
Case Cover Assembly
2008 Chevrolet Impala V8-5.3LSECTION Case Cover Assembly
Disassembled Views
Case Cover Assembly
Case Cover Assembly:
401 - Case Cover
402 - Manual Valve Link
403 - Manual Valve Link Spring
404 - Manual Valve
405 - Low Blow Off Ball Valve Bore Plug
406 - Low Blow Off Ball Valve Spring
407 - Cooler Ball Valve Spring
409 - Left Side Axle Oil Seal Assembly
410 - Control Valve Body Alignment Sleeve
411 - Bore Plug
411 - Bore Plug
412 - Orificed Cup Plug
414 - Actuator Feed Limit Valve
415 - Actuator Feed Limit Valve Spring
416 - Actuator Feed Limit Valve Spring Retainer
417 - Ball Valve Bore Plug
418 - TCC Blow Off Ball Valve Spring
420a - Low Blow Off Ball Valve
420b - TCC Blow Off Ball Valve
420c - Cooler Ball Valve
421 - 3-4 Accumulator Piston Cylinder
422 - 3-4 Accumulator Piston Cylinder O-Ring Seal
423 - 3-4 Accumulator Piston Outer Spring
424 - 3-4 Accumulator Piston Inner Spring
426 - 3-4 Accumulator Piston Pin
427 - 3-4 Accumulator Piston Oil Seal Ring
428 - 3-4 Accumulator Piston
429 - Case Cover Lower Gasket
430 - Case Cover Upper Gasket
431 - Front Wheel Drive Shaft Bearing Assembly
432 - Fourth Clutch Shaft Thrust Washer
440 - Input Speed Sensor Assembly
441 - Input Speed Sensor Clip
442 - Low Regulator Valve Spring 3-4 Accumulator Valve - Some models have touch activated power
443 - Low Regulator Valve 3-4 Accumulator Valve - Some models have touch activated power
444 - Low Regulator Valve Bore Plug 3-4 Accumulator Valve - Some models have touch activated power
514 - Drive Sprocket/Case Cover Thrust Washer
526 - Case Cover Dowel Pin
526 - Case Cover Dowel Pin
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.