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Home >> Ford >> 2003 >> Excursion 7.3 F, 4WD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> ENGINE CONTROLS - SELF-DIAGNOSTICS - 7.3L (995, 996 F650/750, 99F E Series & 99F F450/550) DIESEL >> Quick Test >> Vehicle Preparation & Equipment Hookup >> Notes

Vehicle Preparation & Equipment Hookup: Notes

NOTE: Ignition must be cycled between each self-test.

Apply parking brake and place shift lever in Park (A/T) or Neutral (M/T) position. Block drive wheels. Turn off all electrical accessories. Ensure engine is at normal operating temperature. If vehicle is equipped with an auxiliary powertrain control system (RPM control), it must be turned off when performing any self-test procedure. Connect New Generation Star (NGS) tester to vehicle as follows.