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Vacuum Modulator: Checking: Notes

  1. Ensure that throttle cable adjustment is correct. Throttle must be fully open when accelerator pedal is fully depressed. Transaxle fluid level should be correct.
  2. Raise and support vehicle properly for testing. Connect oil pressure gauge to transaxle at pressure port. See Figure. Start engine and move gear selector to the "2" position.
  3. Push accelerator pedal all the way down while applying brakes to stabilize vehicle speed at 50 MPH. Pressure should be 67-70 psi (4.7-4.9 kg/cm2 ). If reading is not within specifications, adjustment is necessary.