F 250 2WD Pickup V8-7.3L DSL (1990)
It is important to test drive the truck with the customer to UNDERSTAND HIS OR HER CONCERN.
Complete the road test before beginning any repairs since you may have multiple causes that need to be identified.
^
The road test should be done on a flat, straight road and should be done in both directions to account for wind.
^
Tire pressure should be checked and adjusted, if necessary.
^
A second person in the truck during the road test is helpful. Unless otherwise directed, the second person must remain in the front RH passenger
location.
^
On trucks with automatic locking hubs, it is necessary to drive twenty (20) feet forward and then backwards to unlock the hubs
NOTE:
IT IS POSSIBLE THAT THE TRUCK MAY HAVE MULTIPLE SYMPTOMS. A ROAD TEST/CAUSE CHART FOLLOWS.
NOTE:
RECONNECT THE FLUID LEVEL SENSOR AFTER ROAD TEST
Diagnostic Procedure # 1 - Tire Mismatch
Compare the installed tires and wheels to the certification label. If the tires and wheels match, continue with the diagnostic procedure.
^
IF THE TIRES AND WHEELS DO NOT MATCH THE CERTIFICATION LABEL, compare tires and wheels to RPO (regular production
