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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 1990 Buick Regal car and truck
repair procedures including Buick 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 Buick Regal automobile. Try the Automotix DIY solution today!
We have info for following modifications of 1990 Buick Regal
- 1990 Buick Regal Limited 3.8 V6 GAS, CID:231, Fuel Injection, Aspiration:231, Engine VIN:, Desg:L
- 1990 Buick Regal Limited 3.1 V6 GAS, CID:189, Fuel Injection, Aspiration:189, Engine VIN:, Desg:T
- 1990 Buick Regal Custom 3.8 V6 GAS, CID:231, Fuel Injection, Aspiration:231, Engine VIN:, Desg:L
- 1990 Buick Regal Custom 3.1 V6 GAS, CID:189, Fuel Injection, Aspiration:189, Engine VIN:, Desg:T
BRAKE SERVICE PROCEDURES FOR 1990 Buick Regal AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1990 Buick Regal cars and light trucks from 1990+.
ANTI-LOCK BRAKES, GENERAL MOTORS -> Cutlass Supreme, Grand Prix & Regal (Delco-Moraine III Type) -> OPERATING PRECAUTIONS -> COMPUTER SYSTEM SERVICE PRECAUTIONS
Vehicle: 1990 Buick Regal Limited 3.8 V6 GAS
Some of the following procedures require that hydraulic lines, hoses and fittings be disconnected for inspection of testing. This Delco-Moraine brake system uses a hydraulic booster/modulator called a Powermaster III, which, when completely charged, contains brake fluid under high pressure. Before disconnecting any hydraulic lines, hoses or fittings, ensure the Powermaster III is completely depressurized as describ...
CLICK HERE TO GET FULL ACCESS TO 1990 Buick Regal BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1990 Buick Regal AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1990 Buick Regal cars and light trucks from 1990+.
ANTI-LOCK BRAKES, GENERAL MOTORS -> Cutlass Supreme, Grand Prix & Regal (Delco-Moraine III Type) -> DIAGNOSTIC TESTS -> NOTE ON INTERMITTENTS
Vehicle: 1990 Buick Regal Custom 3.8 V6 GAS
A bi-directional scan tool connected to the assembly line diagnostic link (ALDL), is needed to access fault codes in the Delco-Moraine anti-lock braking system. Follow manufacturers directions for accessing fault codes.
[[table data]]The ABS controller, when accessed with a bi-directional scan tool, identifies faults as specifically as possible. This diagnosis will also determine whether or not the fault is intermittent. There are 58 diagnostic fault codes. The first five codes stored, are stored in order of occurrence, from least recent to most recent. Fault codes will not disappear when ign...
CLICK HERE TO GET FULL ACCESS TO 1990 Buick Regal BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1990 Buick Regal AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1990 Buick Regal cars and light trucks from 1990+.
DISC BRAKES, GENERAL MOTORS -> Delco-Moraine Dual Piston w/Dual Mounting Bolts -> DESCRIPTION
Vehicle: 1990 Buick Regal Custom 3.1 V6 GAS
This dual piston sliding caliper, Fig. , is comprised of two interconnected bores and is attached to a mounting bracket with two mounting bolts. Hydraulic p...
CLICK HERE TO GET FULL ACCESS TO 1990 Buick Regal BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1990 Buick Regal AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1990 Buick Regal cars and light trucks from 1990+.
DISC BRAKES, GENERAL MOTORS -> Delco-Moraine Single Piston w/Dual Mounting Bolts (Type 3) -> PARKING BRAKE ADJUSTMENTS
Vehicle: 1990 Buick Regal Limited 3.1 V6 GAS
- Apply service brake pedal three times, then apply and release parking brake lever three times.
- Raise and support vehicle, then place alignment mark on wheel and axle flange.
- Check parking brake hand lever for full release as follows:
- Turn ignition switch to "On" position and ensure "Brake" warning lamp is off.
- If "Brake" warning lamp is still on, with hand lever fully released, pull front parking brake cable downward to remove slack from pedal assembly.
- Remove rear wheels, then install two lug nuts to secure rotor.
- Ensure parking brake levers on both calipers are against lever s...
CLICK HERE TO GET FULL ACCESS TO 1990 Buick Regal BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1990 Buick Regal AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1990 Buick Regal cars and light trucks from 1990+.
HYDRAULIC BRAKE SYSTEM, GENERAL MOTORS -> COMPONENT DESCRIPTION -> BRAKE DISTRIBUTION VALVE & SWITCH -> BRAKE WARNING LAMP SWITCHES -> COMBINATION VALVE -> Failure Warning Switch -> Fluid Level Sensor -> Metering Valve -> Proportioning or Pressure Control Valve -> Testing Warning Lamp Operation
Vehicle: 1990 Buick Regal Custom 3.1 V6 GAS
BRAKE WARNING LAMP SWITCHES
There are four basic types of brake warning lamp switches as shown,Figs. through . When a pressure differential occurs between the front and rear brake systems, the valves will shuttle toward the side with the low pressure.
In the switch shown inFig. , movement of the differential valve forces the switch plunger upward over the tapered shoulder of the valve to close the switch contacts and light the dual brake warning lamp, signaling a brake system failure.
InFig. , the valve assembly consists of two valves in a common bore that are spring loaded ...
CLICK HERE TO GET FULL ACCESS TO 1990 Buick Regal BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1990 Buick Regal AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1990 Buick Regal cars and light trucks from 1990+.
ANTI-LOCK BRAKES, GENERAL MOTORS -> Cutlass Supreme, Grand Prix & Regal (Delco-Moraine III Type) -> DIAGNOSTIC TESTS -> NOTE ON INTERMITTENTS
Vehicle: 1990 Buick Regal Limited 3.1 V6 GAS
A bi-directional scan tool connected to the assembly line diagnostic link (ALDL), is needed to access fault codes in the Delco-Moraine anti-lock braking system. Follow manufacturers directions for accessing fault codes.
[[table data]]The ABS controller, when accessed with a bi-directional scan tool, identifies faults as specifically as possible. This diagnosis will also determine whether or not the fault is intermittent. There are 58 diagnostic fault codes. The first five codes stored, are stored in order of occurrence, from least recent to most recent. Fault codes will not disappear when ign...
CLICK HERE TO GET FULL ACCESS TO 1990 Buick Regal BRAKE SERVICE PROCEDURES
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