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Throttle Opener

  1. Check that vacuum hoses and throttle opener control solenoid harness are connected. Disconnect vacuum hose at throttle opener nipple.
  2. Connect a hand vacuum pump to nipple of throttle opener. Install a tachometer to engine. Run engine at curb idle speed of 700-750 RPM.
  3. Apply 12.0 in. Hg vacuum to throttle opener nipple. Increase engine speed. If engine speed fails to increase, replace throttle opener/dash pot. See Fig 1 .
Fig 1: Throttle Opener
G48150
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