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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 1990 Cadillac Eldorado car and truck
repair procedures including Cadillac engine diagrams, wiring diagrams, repair work estimating measures, technical service bulletins, auto body work
guidance, starter & alternator replacement procedures, serpentine belt replacement procedures, radiator & hose replacement procedures, tune-up &
drivability specifications, quick lube illustrations, preventive maintenance guide, engine light reset instructions, parts removal and install
procedures, fuel filter replacement directions, component location diagrams, air filter locations & replacement instructions, a/c
system specifications, and general auto service procedures. You don't have to be a car mechanic or technician to know how to fix
your 1990 Cadillac Eldorado automobile. Try the Automotix DIY solution today!
BRAKE SERVICE PROCEDURES FOR 1990 Cadillac Eldorado AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1990 Cadillac Eldorado cars and light trucks from 1990+.
DISC BRAKES, GENERAL MOTORS -> Delco-Moraine Single Piston w/Dual Mounting Bolts (Type 4) -> PARKING BRAKE ADJUSTMENTS
Vehicle: 1990 Cadillac Eldorado 4.5 V8 GAS
- Apply and release service brakes three times with a force of approximately 175 lbs.
- Fully apply parking brake (may require up to 4 pedal strokes) using approximately 125 lbs. force on last stroke, then release. Repeat procedure two more times.
- Inspect parking brake pedal assembly for full release by observing brake warning lamp.
- If lamp is on and parking brake appears to be fully released, operate manual pedal release lever and pull down on front cable to remove slack from pedal assembly.
- Raise an...
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BRAKE SERVICE PROCEDURES FOR 1990 Cadillac Eldorado AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1990 Cadillac Eldorado cars and light trucks from 1990+.
HYDRAULIC BRAKE SYSTEM, GENERAL MOTORS -> WHEEL CYLINDER OVERHAUL
Vehicle: 1990 Cadillac Eldorado 4.5 V8 GAS
- Raise and support vehicle.
- Remove wheel, drum and brake shoes.
- Disconnect hydraulic line at wheel cylinder.Do not pull metal line away from cylinder, as this may kink or bend line. Line will separate from cylinder when cylinder is moved away from brake backing plate.
- Remove wheel cylinder-to-brake plate attaching screws, then the wheel cylinder.
- Remove boots, pistons, springs and cups from cylinder,Fig. .
- Clean all parts with brake fluid.
- Inspect cylinder bore. A scored bore may be honed as long as the diameter is not increased by m...
CLICK HERE TO GET FULL ACCESS TO 1990 Cadillac Eldorado BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1990 Cadillac Eldorado AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1990 Cadillac Eldorado cars and light trucks from 1990+.
DISC BRAKES, GENERAL MOTORS -> General Information -> TESTING PROPORTIONING VALVE
Vehicle: 1990 Cadillac Eldorado 4.5 V8 GAS
When a premature rear wheel slide is obtained on a brake application, it usually is an indication that the fluid pressure to the rear wheels is above the 50% reduction ratio for the rear line pressure and that malfunction has occurred within the proportioning valve.
To test the valve, install gauge set shown in Fig. in brake line between master cylinder and proportioning valve, and at outpu...
CLICK HERE TO GET FULL ACCESS TO 1990 Cadillac Eldorado BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1990 Cadillac Eldorado AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1990 Cadillac Eldorado cars and light trucks from 1990+.
DISC BRAKES, GENERAL MOTORS -> General Information -> BRAKE ROUGHNESS
Vehicle: 1990 Cadillac Eldorado 4.5 V8 GAS
The most common cause of brake chatter on disc brakes is a variation in thickness of the disc. If roughness or vibration is encountered during highway operation or if pedal pulsation is experienced at low speeds, the disc may have excessive thickness variation. To check for this condition, measure the disc at 12 points with a micrometer at a radius approximately one inch from edge of disc. If thickness measurements vary by more than .0005 inch, the disc should be rep...
CLICK HERE TO GET FULL ACCESS TO 1990 Cadillac Eldorado BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1990 Cadillac Eldorado AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1990 Cadillac Eldorado cars and light trucks from 1990+.
DISC BRAKES, GENERAL MOTORS -> General Information -> BLEEDING DISC BRAKES
Vehicle: 1990 Cadillac Eldorado 4.5 V8 GAS
Pressure bleeding is recommended for all hydraulic disc brake systems.
The disc brake hydraulic system can be bled manually or with pressure bleeding equipment. On vehicles with disc brakes the brake pedal will require more pumping and frequent checking of fluid level in master cylinder during bleeding ope...
CLICK HERE TO GET FULL ACCESS TO 1990 Cadillac Eldorado BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1990 Cadillac Eldorado AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1990 Cadillac Eldorado cars and light trucks from 1990+.
ANTI-LOCK BRAKES, GENERAL MOTORS -> 1990 Eldorado, Reatta, Riviera, Seville, Toronado & Trofeo (Teves Type) -> EBCM INPUTS -> BRAKE LIGHT SWITCH -> CRANK SENSE -> DIAGNOSTIC ENABLE -> IGNITION ENABLE -> LOW FLUID & LOW PRESSURE -> WHEEL SPEED SENSORS
Vehicle: 1990 Cadillac Eldorado 4.5 V8 GAS
IGNITION ENABLE
The ignition enable input receives battery voltage whenever the ignition switch is in the RUN position. Upon receiving an ignition enable input, the EBCM begins its self-checks.
CRANK SENSE
A crank sense input is provide to the EBCM which goes high (12 volts), when the ignition switch is moved to the START position. When the crank sense input is high, the EBCM commands itself, internally, to shut off until engine start is completed.
BRAKE LIGHT SWITCH
The EBCM also receives a 12 volt signal from the brake light switch whenever the brake pedal is depressed. The brake light...
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