Main Valve Body Assemble

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Tools Required

J 33163 Valve Tray Set. See Special Tools .
J 43773 Valve Spring Compressor. See Special Tools .

Fig 1: Locating Exhaust Pressure Regulator Valve & Spring

Courtesy of GENERAL MOTORS CORP.

IMPORTANT: To prevent confusing parts during assembly, the removed valves, springs, and stops are stored in J 33163 . See Special Tools .

Install the exhaust pressure regulator valve (1) and spring (2).

Fig 2: Compressing Exhaust Pressure Regulator Valve Spring

Courtesy of GENERAL MOTORS CORP.

Compress the spring with J 43773 (2). See Special Tools .
Install the retaining clip (1).
Make sure the retaining clip is below the valve body surface.

Fig 3: Identifying Control Relief Spring & Control Relief Valve

Courtesy of GENERAL MOTORS CORP.

Install the control relief valve (1) and spring (2).

Fig 4: Compressing Control Relief Valve Spring

Courtesy of GENERAL MOTORS CORP.

Compress the spring with J 43773 (2). See Special Tools .
Install the retaining clip (1).
Make sure the retaining clip is below the valve body surface.