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Home >> Chevrolet >> 1990 >> Corvette ZR-1 >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Overhaul & Testing - 700-R4/4L60 >> Testing >> Control Pressure Test >> Full Throttle Valve Pressure Check
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Full Throttle Valve Pressure Check

  1. Attach pressure gauge to line pressure tap. See Figure . Apply parking brake and service brakes. Ensure throttle valve cable is secured in fully extended position.
  2. Check line pressure as specified. See OIL PRESSURE SPECIFICATION CHARTS  . Pressure readings must be within specification. If pressure reading is not within specification, see TROUBLE SHOOTING  .
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