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Pressure Regulator: Removal

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. Raise and support the vehicle. Remove the transmission oil pan and filter. See DRAINING & REFILLING  under LUBRICATION.
    2. CAUTION: Valve springs can be tightly compressed. Use care when removing retainers and plugs. Personal injury could result.
  2. Compress the reverse boost valve sleeve into the bore of the oil pump to release tension on the reverse boost valve retaining ring. See Figure.
  3. Remove the reverse boost valve retaining ring, then slowly release tension on the reverse boost valve sleeve.
  4. Remove the reverse boost valve sleeve (5) and the reverse boost valve (4). See Figure.
  5. Remove the pressure regulator isolator spring (3) and the pressure regulator valve spring (2). Remove the pressure regulator valve (1). See Figure.
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