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02-12-3
  • DRIVEABILITY - ENGINE LACKS POWER WHEN OPERATING IN HIGH AMBIENT TEMPERATURES ABOVE 38C (100F) - VEHICLES EQUIPPED WITH 5.4L ENGINE ONLY
  • ENGINE - 5.4L - ENGINE LACKS POWER WHEN OPERATING IN HIGH AMBIENT TEMPERATURES ABOVE 38C (100F)
Publication Date: JUNE 13, 2002

FORD:
2000-2002 EXPEDITION, F-150

ISSUE:

Some vehicles equipped with the 5.4L-2V engine may exhibit a lack of power condition when operating in ambient temperatures above 38°C (100°F). This may be caused by the Powertrain Control Module (PCM) calibration which retards the ignition timing to prevent detonation when the Inlet Air Temperature (IAT) reaches 60°C (140°F) or above. This may be more pronounced during stop-and-go driving.

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