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Electric Assist Choke: Testing

  1. Disconnect choke wire from housing. Connect one lead of test lamp to spade terminal on choke housing. Connect other lead of test lamp to connector of choke wire.
  2. Using a small thermometer, tape bulb end of thermometer to oval boss on back of bi-metal cap assembly. Start engine. Read thermometer and observe test lamp. Refer to "Fig 1".
  3. Read thermometer and observe test lamp. Lamp should be out when 60-80°F is reached on the thermometer. The test lamp should light at temperatures above the 60-80°F range. Once modulating temperature is reached (test lamp lit), the choke should be fully open within 1-1.5 minutes.
    NOTE: If test lamp did not light, check 7 volt source from alternator.
    Fig 1: THERMOSTATIC SWITCH MODULATION CHART
    G09325415Courtesy of CHRYSLER GROUP, LLC
    Fig 2: ELECTRIC ASSIST CHOKE
    G09325416Courtesy of CHRYSLER GROUP, LLC