Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD1999EXPLORER 4WD V6-4.0L VIN EREPAIR AND DIAGNOSISBRAKES AND TRACTION CONTROLTESTING AND INSPECTIONSYMPTOM RELATED DIAGNOSTIC PROCEDURESVIBRATION WHEN BRAKES ARE APPLIED
1999 Ford Explorer 4WD V6-4.0L VIN E
Vibration When Brakes Are Applied
1999 Ford Explorer 4WD V6-4.0L VIN ESECTION Vibration When Brakes Are Applied
For vibration concerns when brakes are applied, perform the following procedure.
Visually inspect:
- The condition and pressure.
- Suspension bushings and ball joints.
Correct as necessary.
1. Verify and isolate the concern. Brake roughness can be felt in:
1 the steering wheel.
2 the seat.
3 the brake pedal.
2. After verifying the concern, check for related concerns in the:
1 Technical Service Bulletins.
2 Check wheel bearing end-play and correct as necessary.
4. NOTE: Begin at the front of the vehicle unless the vibration has been isolated to the rear.
Remove the tire and wheel.
5. Remove the brake caliper.
6. Measure and record the brake disc thickness. Install a new brake disc if the thickness after machining will be at or below specification. The specification is molded into the brake disc. Do not machine a new brake disc.
7. For vehicles with a two-piece brake disc and hub assembly:
1 Match-mark before disassembly.
2 Remove the brake disc.
3 Using a die grinder with a mild abrasive (Scotch Britons type), remove any rust or corrosion from the hub and brake disc mounting surfaces.
4 Align the match-marks and reinstall the brake disc on the hub.
8. CAUTION: Do not use a bench lathe to machine brake discs.
NOTE: The depth of cut must be between 0.10 and 0.20 mm (0.004 and 0.008 inch). Lighter cuts will cause heat and wear. Heavier cuts will cause poor brake disc surface finish.
Using the special tool, machine the brake discs. Follow the manufacturer's instructions. After machining, make sure the brake disc still meets the thickness specification.
9. Using a dial indicator, verify that the brake disc lateral runout is now within vehicle specification.
10. Remove the special tool hub adapter.
11. Remove any remaining metal chips from the machining operation.
12. For vehicles with a two-piece brake disc and hub assembly:
- Remove the brake disc from the hub.
- Remove any remaining metal chips from brake disc and hub mounting surfaces and from the ABS sensor.
- Apply High Temperature Nickel Anti-Seize Lubricant F6AZ-9L494-AA to the mounting surfaces.
- Using the match-marks, mount the brake disc on the hub.
13. Install the caliper and check brake operation.
Visually inspect:
- The condition and pressure.
- Suspension bushings and ball joints.
Correct as necessary.
1. Verify and isolate the concern. Brake roughness can be felt in:
1 the steering wheel.
2 the seat.
3 the brake pedal.
2. After verifying the concern, check for related concerns in the:
1 Technical Service Bulletins.
2 Check wheel bearing end-play and correct as necessary.
4. NOTE: Begin at the front of the vehicle unless the vibration has been isolated to the rear.
Remove the tire and wheel.
5. Remove the brake caliper.
6. Measure and record the brake disc thickness. Install a new brake disc if the thickness after machining will be at or below specification. The specification is molded into the brake disc. Do not machine a new brake disc.
7. For vehicles with a two-piece brake disc and hub assembly:
1 Match-mark before disassembly.
2 Remove the brake disc.
3 Using a die grinder with a mild abrasive (Scotch Britons type), remove any rust or corrosion from the hub and brake disc mounting surfaces.
4 Align the match-marks and reinstall the brake disc on the hub.
8. CAUTION: Do not use a bench lathe to machine brake discs.
NOTE: The depth of cut must be between 0.10 and 0.20 mm (0.004 and 0.008 inch). Lighter cuts will cause heat and wear. Heavier cuts will cause poor brake disc surface finish.
Using the special tool, machine the brake discs. Follow the manufacturer's instructions. After machining, make sure the brake disc still meets the thickness specification.
9. Using a dial indicator, verify that the brake disc lateral runout is now within vehicle specification.
10. Remove the special tool hub adapter.
11. Remove any remaining metal chips from the machining operation.
12. For vehicles with a two-piece brake disc and hub assembly:
- Remove the brake disc from the hub.
- Remove any remaining metal chips from brake disc and hub mounting surfaces and from the ABS sensor.
- Apply High Temperature Nickel Anti-Seize Lubricant F6AZ-9L494-AA to the mounting surfaces.
- Using the match-marks, mount the brake disc on the hub.
13. Install the caliper and check brake operation.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.