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Home >> American Motors >> 1985 >> Alliance Base, Automatic >> Repair and Diagnosis >> Engine Performance >> Ignition System >> Ignition System - 1.4L >> Testing >> Vacuum Sensor Check

Vacuum Sensor Check

  1. Stabilize engine speed at 3000 RPM. Disconnect vacuum hose from vacuum sensor.
  2. If engine speed drops, vacuum sensor is operating properly. If engine speed does not drop, check condition of vacuum hose. If it is bad, replace hose and repeat check again. If hose condition was good, replace computer.
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