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Pressure Regulator: Installation

WARNING: This page does not describe the selected car, but rather 13 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, and 2002 GMC C3500 HD. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the pressure regulator valve (1). Install the pressure regulator isolator spring (3) and the pressure regulator valve spring (2). See Fig 2.
  2. Install the reverse boost valve (4) in the reverse boost valve sleeve (5). Install the reverse boost valve (4) and sleeve (5) in the oil pump cover. See Fig 2.
  3. Compress the reverse boost valve sleeve into the bore of the oil pump to expose the retaining ring slot.
  4. Install the reverse boost valve retaining ring, then slowly release tension on the reverse boost valve sleeve. See Fig 1. Install the transmission oil filter and pan. See DRAINING & REFILLING  under LUBRICATION.
  5. Lower the vehicle. Fill transmission with appropriate fluid to proper level. See LUBRICATION .
Fig 1: Installed View Of Pressure Regulator
G00056996Courtesy of GENERAL MOTORS CORP.
Fig 2: Exploded View Of Pressure Regulator
G00056997Courtesy of GENERAL MOTORS CORP.
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