GENERAL INFORMATION
Note: Occasional brake noise is normal. Ifa metal-to-metal, continuous grinding orcontinuous squeal sound is present, thebrake linings may be worn-out, have thesystem checked. If the vehicle hascontinuous vibration or shudder in thesteering wheel while braking, have thesystem checked as soon as possible.
Note: Brake dust may accumulate on thewheels, even under normal drivingconditions. Some dust is inevitable as thebrakes wear and does not contribute tobrake noise. See Cleaning the Wheels(page 187).
See Warning Lamps andIndicators (page 61).
Wet brakes result in reduced brakingefficiency. Gently press the brake pedal afew times when driving from a car wash orstanding water to dry the brakes.
Brake Over Accelerator
In the event the accelerator pedalbecomes stuck or entrapped, apply steadyand firm pressure to the brake pedal toslow the vehicle and reduce engine power.If you experience this condition, apply thebrakes and bring your vehicle to a safestop. Move the transmission to park (P),switch the engine off and apply the parkingbrake. Inspect the accelerator pedal forany interference. If none are found and thecondition persists, have the systemchecked.
Anti-lock Brake System
This system helps you maintain steeringcontrol during emergency stops by keepingthe brakes from locking.
If it illuminates when you aredriving, your vehicle requiresservice. Your vehicle continuesto have normal braking without theanti-lock brake system function. Have yourvehicle checked as soon as possible.
It also momentarily illuminates when youswitch the ignition on to confirm the lampis functional. If it does not illuminate whenyou switch the ignition on, or begins toflash at any time, have the systemchecked.
It illuminates when you engagethe parking brake and theignition is on.
If it illuminates when your vehicleis moving, make sure the parkingbrake is disengaged. If theparking brake is disengaged, this indicateslow brake fluid level or a brake systemfault. Have your vehicle checked as soonas possible.
It also momentarily illuminates when youswitch the ignition on to confirm the lampis functional. If it does not illuminate whenyou switch the ignition on, or begins toflash at any time, have the systemchecked.
Hydraulic brake booster system(Hydroboost or Hydromax)
The Hydroboost and Hydromax systemsreceive fluid pressure from the powersteering pump to provide power assistduring braking.
The Hydromax booster receives backuppressure from the reserve system electricpump whenever the fluid in the powersteering system is not flowing. When theengine is off, the pump turns on if you applythe brake pedal, or if you switch the ignitionto the on position.
99
2024 E-Series (TE4) Canada/United States of America, enUSA, Edition date: 202210, First-PrintingBrakesE270480 E67024 E67020 E270480 E67024
Only use fluid that meets ourspecifications. See Capacities andSpecifications (page 226).
Brake Fluid Service Interval
Brake fluid absorbs water over time whichdegrades the effectiveness of the brakefluid. Change the brake fluid at thespecified intervals to prevent degradedbraking performance.
For detailed interval information, seeScheduled Maintenance in your Owner'sManual or your local maintenance guide.
POWER STEERING FLUID
CHECK
WARNING: A fluid level betweenthe MAX and MIN lines is within thenormal operating range and there is noneed to add fluid. A fluid level not in thenormal operating range couldcompromise the performance of thesystem.
WARNING: For E-350 and E-450vehicles with the Hydro-Boost BrakeSystem, do not press the brake pedalafter the engine has been turned off.Pressing the brake pedal after the enginehas been turned off will give a falsepower steering fluid level reading.
Only use fluid that meets Fordspecifications. See Hydraulic PowerSteering Fluid Capacity andSpecification (page 236).
To top up the power steering fluid level dothe following.
1.Start the engine and let it run until itreaches normal operating temperature.
2.Make sure the fluid is within the MINand MAX range.
3.If the fluid level is low, add fluid to bewithin the MIN and MAX range. Do notoverfill.
4.While the engine idles, turn the steeringwheel left and right several times.
5.Recheck the fluid level in the reservoir.
Note:Do not operate the vehicle with a lowpower steering pump fluid level.
CHANGING THE 12V BATTERY
WARNING: This vehicle may havemore than one battery. Removing thebattery cables from only one batterydoes not disconnect your vehicleelectrical system. Make sure youdisconnect the battery cables from allbatteries when disconnecting power.Failure to do so may cause seriouspersonal injury or property damage.
WARNING: Batteries normallyproduce explosive gases which cancause personal injury. Therefore, do notallow flames, sparks or lightedsubstances to come near the battery.When working near the battery, alwaysshield your face and protect your eyes.Always provide correct ventilation.
WARNING: When lifting aplastic-cased battery, excessive pressureon the end walls could cause acid to flowthrough the vent caps, resulting inpersonal injury and damage to thevehicle or battery. Lift the battery with abattery carrier or with your hands onopposite corners.
173
2024 E-Series (TE4) Canada/United States of America, enUSA, Edition date: 202210, First-PrintingMaintenance