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 MANUALSCHEVROLET2012SILVERADO 2500 4WD V8-6.6L DSL TURBOREPAIR AND DIAGNOSISDIAGRAMSEXPLODED VIEWSAUTOMATIC TRANSMISSION/TRANSAXLEMAIN VALVE BODY ASSEMBLY
2012 Chevrolet Silverado 2500 4WD V8-6.6L DSL Turbo
Main Valve Body Assembly
2012 Chevrolet Silverado 2500 4WD V8-6.6L DSL TurboSECTION Main Valve Body Assembly
Disassembled Views
Main Valve Body Assembly
1 - Main Valve Body Assembly
2 - Retaining Clip
3 - Exhaust Pressure Regulator Valve Spring
4 - Exhaust Pressure Regulator Valve
5 - Retaining Clip
6 - Control Relief Spring
7 - Control Relief Valve
8 - Plug
9 - Plug
10 - Locating Pin (4) - Main Valve Body to Shift Valve Body
10 - Locating Pin (2) - Solenoid Retaining Bracket
11 - Pressure Control Solenoid 1 (PCS1) Spring
12 - PCS1 Valve
13 - PCS1 Valve Retaining Clip
14 - PCS1 O-Ring
15 - PCS1
16 - PCS2 Spring
17 - PCS2 Valve
18 - PCS2 Valve Retaining Clip
19 - PCS2 O-Ring
20 - PCS2
21 - Accumulator Plug (3)
22 - Accumulator Spring (3)
23 - PCS1 and PCS2 Retaining Bracket
24 - Shift Solenoid (SS) 3 O-Ring
25 - SS3 O-Ring
26 - SS3
27 - SS3 Retainer
28 - SS2 O-Ring
29 - SS2 O-Ring
30 - SS2
31 - SS2 Retainer
32 - Torque Converter Clutch Pressure Control Solenoid (TCC PCS) Spring
33 - TCC PCS Valve
34 - TCC PCS Valve Retaining Clip
35 - TCC PCS O-Ring
36 - TCC PCS O-Ring
37 - TCC PCS
38 - TCC PCS Retaining Bracket Bolt
39 - TCC PCS Retaining Bracket
40 - Main Valve Body
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.