F 250 4WD Super Duty V10-6.8L VIN Z CNG (2003)
specifications? If yes, go to the next step. If no, adjust the tire pressure. Rotate the tires front to rear. Install new tires, if excessively worn. Test
operation.
2.
CHECK THE CALIPER ASSEMBLY: Do the caliper pistons or pins bind/stick, have unequal pressure left to right, or do the brakes drag? If no,
go to the next step. If yes, refer to symptom chart for brake system in the Workshop Manual Section 206-00 for brake drag. Repair or install new
components as necessary. Test operation.
NOTE
IF THE VEHICLE BUILD DATE IS BETWEEN JULY 1, 2001 AND NOVEMBER 30, 2001 AND THE VEHICLE HAS A PULL TO THE
RIGHT IN ROAD TEST "B" OR ROAD TEST "C", REPLACE BOTH FRONT CALIPERS.
3.
INSPECT BRAKE PADS: Inspect the front brake pads for contamination and wear concerns. Also check the brake pad edge code on the top edge
of all four front brake The edge code will consist of "abex6091ee xxxxx / yyy". Disregard the last three digits after "7,". The five digits after "ee"
should be the same. If the pads are not OK, or if the edge codes are not the same, go to step 6, otherwise continue to step 4.
4.
Swap PADS and ROTORS side to side and
Perform Road test "B" or "C" as appropriate. If the pull direction has reversed go to Step 6, otherwise continue to step 5.
5.
CHECK REAR BRAKES:
a.
Check for contaminants (i.e. grease, axle lube, leaking brake fluid, etc.).
b.
Check for broken components, broken or improperly installed parking brake. cables.
c.
Do the caliper pistons or pins bind or stick or do the brakes drag?
(1)
If no, go to the next step. If yes, refer to symptom chart for brake system in the Workshop Manual section 206-00 for brake drag.
d.
INSPECT BRAKE PADS: Inspect the rear brake pads wear conditions. If the pads are OK, go to the next step. If not, go to Step F.
e.
Swap pads and rotor side to side. If the pull reverses, go to Step 6.
f.
Install new pads for the rear brakes. Machine/replace the rotors. Burnish the linings (see step 6). Test operation.
6.
Install new pads with the same edge code. Machine the rotors using. Rotunda Hub-Mount Brake Lathe / Pro-Cut (201-00002) or replace the rotors.
Burnish the linings by a minimum of 50 brake applications from 40 MPH (64 km/h) to stop. Provide sufficient time between brake applications so
that linings do not smoke or overheat. Check operation. If the concern is still present, burnish the linin9s once more and check operation. If the
pull is not gone even after burnishing, go to the next step.
7.
CHECK ALIGNMENT: Check for correct camber, caster and toe-in settings. Is the alignment within specification? If not, RESET the alignment
and ROAD TEST the vehicle. Refer to Section 204-00 of the appropriate Workshop Manual for alignment specifications.
Diagnostic Procedure 2
1.
CHECK TIRES: Check the tires for excessive wear and measure the air pressure in all four tires. Are the tires in good condition and the tire
pressure within specifications? If yes, go to the next step. If not, adjust the tire pressure. Rotate the tires front to rear. Install new tires, if
excessively worn. Test operation.
2.
CHECK THE CALIPER ASSEMBLY: Do the caliper pistons or pins bind or stick or do the brakes drag? It not, go to the next step. If yes, refer to
symptom chart for brake system in the Workshop Manual Section 206-00 for brake drag. repair or install new components as necessary. Test
operation.
3.
INSPECT BRAKE PADS: Inspect the front brake pads for contamination and wear concerns. Also check the brake pad edge code on the top edge
of all four front brake pads. The edge code will consist of "abex60g1ee xxxxx / yyy". Disregard the last three digits after "/". The five digits after
"ee" should be the same. If the pads are not ok, or if the edge codes are not the same, go to step 6, otherwise continue to step 4.
4.
Swap PADS and ROTORS side to side and check the pull. If the pull direction has reversed, go to Step 6. If the vehicle still pulls to the left,
burnish linings and check the pull. If it still pulls left, go to Step 5.
