Explorer Sport Trac 4WD V6-4.0L VIN K Flex Fuel (2004)
Alignment: Customer Interest
Alignment - Irregular Front Tire Wear
TSB 05-11-11
06/13/05
IRREGULAR TIRE WEAR
FORD:
2003-2005 Explorer Sport Trac
ISSUE
Some 2003-2005 Explorer Sport Trac vehicles equipped with the Goodyear Wrangler RT/S, P255/70R16 109S AT OWL tire, may exhibit signs of
feathering heel-toe wear on the inside or outside edges of the front tires. Tire noise may also be present during regular highway drive or when braking.
ACTION
Inspect the tires for feathering heel-toe wear. It may be necessary to rotate or replace tires and reset toe. Refer to the following Service Procedure.
SERVICE PROCEDURE
1.
Visually inspect the front tire's inside and outside shoulder ribs (Figure 1).
2.
Measure the difference in tread depth of the leading edge compared to trailing edge, of the most-worn lug (figure 2). If the average difference in
tread depth between leading and trailing edge is less than 2 mm, rotate the tires. If the average difference is more than 2 mm, replace the front
tires. Also inspect the rear tires and replace if necessary.
3.
Ensure that the camber and caster readings are within specification.
4.
Set the total front toe (TFT) to 0.12 +/- 0.05 degrees (nominal).
NOTE
