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Home >> Ford >> 1988 >> Bronco II 4WD, Standard, M5OD-R1 >> Repair and Diagnosis >> Engine Performance >> System >> Choke - Electric >> Testing >> Choke Function >> 2.0L (Choke Opening)
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2.0L (Choke Opening)

  1. Depress throttle lever to the 1/2 fully open position. Place choke plate in fully closed position. Release throttle lever. This positions choke on the fast idle cam.
  2. Choke housing may require cooling to obtain choke setting. Choke housing can be cooled using choke tester. Install choke tester using manufacturer's instructions.
  3. Choke tester must be turned off at 15 second intervals until choke plate lightly closes. Position fast idle cam on the kickdown step. Choke plate should remain lightly closed.
  4. Choke housing may require cooling to ensure choke closure. Without touching throttle, start engine and note the time required for choke plate to reach the fully open position. Time required for choke operation should be 195 +/- 50 seconds.
  5. If choke opening time does not meet specification, check choke cap continuity. See CHOKE VOLTAGE CIRCUIT  . Choke cap resistance should be checked. See CHOKE CAP RESISTANCE  .
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