Control Valve Upper Body Assembly

2009 Chevrolet Tahoe Base, 4.8 CSECTION Control Valve Upper Body Assembly
WARNING: This page is about a different car, the 2012 GMC Yukon, 2012 Chevrolet Tahoe, and 2012 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Exploded View Of Control Valve Upper Body Assembly
GM1867754Courtesy of GENERAL MOTORS COMPANY
Callout Component Name
320 Valve Retaining Clip
321 Valve Retaining Plug
322 Auxiliary Line Boost Valve
323 Auxiliary Line Boost Valve Spring
324 1-3 Clutch Regulator Valve
325 1-3 Clutch Regulator Valve Spring
326 Hybrid Direct 2-3-4 Clutch Regulator Valve
327 Hybrid Direct 2-3-4 Clutch Regulator Valve Spring
328 Shift Solenoid Valve - Mode A
329 Hybrid A/Trans Shift Solenoid Spring
330 Control Valve Body Locating Pin
331 Hybrid A/Trans Shift Solenoid Spring
332 Shift Solenoid Valve - Mode B
333 Actuator Feed Limit Valve Spring
334 Actuator Feed Limit Valve
335 Hybrid Low, 1-2 Clutch Regulator Valve Spring
336 Hybrid Low, 1-2 Clutch Regulator Valve
337 Hybrid Low, 1-2 Clutch Boost Valve Assembly
338 Hybrid Low, 1-2 Clutch Boost Valve Spring
339 Clutch Piston Exhaust Blowoff Ball Valve
340 Clutch Piston Exhaust Blowoff Ball Valve Spring
341 Clutch Piston Exhaust Blowoff Ball Valve Plug
342 Control Valve Body Locator Pin
343 Control Valve Upper Body Assembly
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.