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Home >> Ford >> 1977 >> Bronco Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> DECEL Throttle Modulator >> Testing >> Pre-Test Set Up

Pre-Test Set Up

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  1. Check Vacuum Delay Valve (VDV) for proper operation (if equipped). See VACUUM DELAY VALVES article for testing procedures.
  2. Remove air cleaner and plug vacuum line. Check primary and secondary throttle linkage and choke linkage for freedom of movement. Connect tachometer to engine.
NOTE: Perform testing in sequence given.
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