1997 Ford Expedition Owner's Manual - Page 196
1997 Ford Expedition Manual
Page 196 highlights
Maintenance and care specifies that additional city and highway driving is necessary to complete the check of the OBD II system. The driving modes required to reach the ready condition consist of a minimum of 30 minutes of city and highway driving: • At least 20 minutes driving in stop and go city-type traffic with at least four idle periods. • At least ten minutes of driving on an expressway or highway. Before completing the above driving modes, the engine must be warmed up and at operating temperature. Once started, the vehicle must not be turned off during these modes. 197
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specifies that additional city and
highway driving is necessary to
complete the check of the OBD II
system.
The driving modes required to
reach the ready condition consist
of a minimum of 30 minutes of city
and highway driving:
•
At least 20 minutes driving in
stop and go city-type traffic with
at least four idle periods.
•
At least ten minutes of driving
on an expressway or highway.
Before completing the above
driving modes, the engine must be
warmed up and at operating
temperature. Once started, the
vehicle must not be turned off
during these modes.
Maintenance and care
197