1990 Cadillac Eldorado Brake Service (ONLINE REPAIR MANUALS)

Remove wheels and inspect brake disc, caliper and linings. The wheel bearings should be inspected at this time and repacked if necessary. Do not get any grease on the linings.

Do not replace individual pads or replace pads on one wheel of an axle set alone, as braking performance will be adversely affected.

If a visual inspection does not ade...

Some of the following procedures require that hydraulic lines, hoses and fittings be disconnected for inspection of testing. This Teves brake system uses a hydraulic accumulator which, when completely charged, contains brake fluid under high pressure. Before disconnecting any hydraulic lines, hoses or fittings, ensure the accumulator is completely depressurized as described further on. Failure to depressurize the hydraulic accumulator may result in personal injury and/or damage to painted surfaces and/or the vehicle.

Certain components in the system are not intended to be s...

This caliper, Figs. and , has a single bore and is mounted to the support bracket with two mounting bolts. Hydraulic pressure, created by applying force to the brake pedal, is converted by the caliper into friction. The hydraulic pressure is applied equally against the piston and the bottom of the caliper bore moving the piston outward and the housing inward, resulting in a clamping action on the brake rotor.

Rear ...

This anti-lock brake system is equipped with a self-diagnostic capability which may be used to assist in isolation of ABS faults. This feature includes 42 trouble codes which could be displayed by the EBCM through flashing of the amber "ANTI-LOCK" lamp in the instrument panel cluster. In order to access and understand any ABS trouble code which may be present, it is necessary to enter the ABS diagnostic mode and read the trouble codes using the following procedures.

DISPLAYING ABS TROUBLE CODES

The following information is to be used for reference when directed by the appropriate dia...

CALIPER REMOVAL

• Drain approximately^2/3 of brake fluid from master cylinder assembly.
• Raise and support vehicle, then mark position of wheel and remove tire and wheel assembly.
• If caliper is to be serviced or replaced, remove bolt securing inlet fitting, then disconnect brake hose, and plug end to prevent loss of fluid and contamination. Do not crimp brake hose, as this may damage internal structure of hose. If only shoe and lining assemblies are being replaced, do not disconnect brake hose from caliper.
• Remove caliper to support mounting bolts, then lift caliper off support. If...

Servicing of disc brakes is extremely critical due to the close tolerances required in machining the brake disc to insure proper brake operation.

The maintenance of these close controls of the shape of the rubbing surfaces is necessary to prevent brake roughness. In addition, the surface finish must be non-directional and maintained at a micro inch finish. This close control of the rubbing surface finish is necessary to avoid pulls and erratic performance, and to promote long lining life and equal lining wear of both left and right brakes.

In light of the foregoing remarks, ref...