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Valve Body & Pressure Switches: Installation

WARNING: This page is about a different car, the 2003 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the check balls in the valve body. See Fig 1 . Install the control valve body to the transmission case while simultaneously connecting the manual valve link to the manual valve. See Figure . Verify that the manual valve link is installed properly to the inside detent lever and the manual valve. See Fig 2 . Install one bolt (M6 X 1.0 X 47.5) hand-tight in the center of the valve body to hold it in place.
    2. NOTE: When installing bolts throughout this procedure, be sure to use the correct bolt size and length in the correct location as specified.
  2. Do not install the transmission fluid indicator stop bracket and bolt at this time. Install, but do not tighten, the control valve body bolts which retain only the valve body directly. Each numbered bolt location corresponds to a specific bolt size and length, as indicated by the illustration. See Fig 3 .
  3. Install the manual detent spring. Install, but do not tighten, the manual detent spring retaining bolt. Install the transmission fluid pressure switch. Install, but do not tighten, the control valve body bolts which retain the transmission fluid pressure switch to the control valve body.
    CAUTION: Tighten valve body bolts in a spiral pattern starting from the center. If the bolts are torqued at random, valve bores may be distorted and inhibit valve operation.
  4. Tighten the control valve body bolts in a spiral pattern starting from the center, as indicated by the arrows. See Fig 3 . Tighten the control valve body bolts (in sequence) to specification. See TORQUE SPECIFICATIONS  . Ensure that the manual detent spring is aligned properly with the detent lever. Tighten the manual detent spring bolt to specification.
  5. Install the TCC solenoid with a new O-ring seal to the valve body. Install the TCC solenoid bolts. Tighten the TCC solenoid retaining bolts to specification. See TORQUE SPECIFICATIONS  . Install the internal wiring harness to the valve body. See Figure . The internal wiring harness has a tab (1) on the edge of the conduit. See Fig 4 .
  6. Place the tab between the valve body and the pressure switch in the location shown (2). See Fig 5 . Press the harness into position on the valve body bolt bosses (1, 3).
  7. Install the TCC PWM solenoid (1) to the control valve body. Install the TCC PWM solenoid retainer (2). See Figure . Install the transmission fluid indicator stop bracket (1) and bolt (2). See Figure . Tighten the transmission fluid indicator stop bracket bolt to specification. See TORQUE SPECIFICATIONS  .
  8. Connect the internal wiring harness electrical connectors to the following components: transmission fluid pressure manual valve position switch, 1-2 shift solenoid, 2-3 shift solenoid, pressure control solenoid, TCC PWM solenoid and 3-2 shift solenoid. See Figure .
  9. Install the transmission oil pan and filter. See DRAINING & REFILLING  under LUBRICATION. Lower the vehicle. Add transmission fluid to obtain the proper fluid level.
Fig 1: Locating Valve Body Check Balls
G94B36609Courtesy of GENERAL MOTORS CORP.
Fig 2: Installing Manual Valve Link
G92G12571Courtesy of GENERAL MOTORS CORP.
Fig 3: Identifying Valve Body Bolt Location
G99C03603Courtesy of GENERAL MOTORS CORP.
Fig 4: Identifying Internal Wiring Harness Tab
G00056993Courtesy of GENERAL MOTORS CORP.
Fig 5: Positioning Internal Wiring Harness
G00056994Courtesy of GENERAL MOTORS CORP.
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