Contents Section: Procedures All sections

Maintenance Information Buick Regal II

Procedures 3 illustrations ~1525 words

VIN LOCATION

The Vehicle Identification Number (VIN) is located on the left side of the dash panel at the base of the windshield. The VIN chart explains the code characters.

VIN CODE ID EXPLANATION

Numbers preceding the explanations in the legend below refer to the sequence of characters as listed on VIN identification label. See VIN example below.

VIN Code ID Explanation (1 Of 2). Scheme 1

Scheme 1: VIN Code ID Explanation (1 Of 2)

VIN Code ID Explanation (2 Of 2). Scheme 2

Scheme 2: VIN Code ID Explanation (2 Of 2)

SEVERE & NORMAL SERVICE DEFINITIONS

Note. Use the Severe Service schedule if the vehicle to be serviced is operated under ANY (one or more) of these conditions

Service is recommended at mileage intervals based on vehicle operation. Severe Service and Normal Service is based on the following primary operating conditions

Severe Service

  1. Short Trips (4 Miles Or Less)
  2. Towing Or Heavily Loaded
  3. Severe Dust Conditions
  4. Hot Weather, Stop-And-Go Driving
  5. Extensive Idling Conditions (Taxi Or Delivery Type Service)

Normal Service

  1. Driven More Than 10 Miles Daily
  2. No Severe Service Operating Conditions

TIRE INFLATION

The tire specification decal is attached to the rear face of the driver's door. Inflation pressure listed on decal is always cold inflation pressure. It must never exceed the maximum values molded into the tire side wall. These pressures provide the best balance of fuel economy, tire life, riding comfort and handling and should be used for all driving conditions.

WHEEL TIGHTENING

Lug nuts for all standard wheels should be tightened to 80 ft. lbs. (110 N.m). Always tighten wheel lug nuts in a crisscross pattern. All wheel lug nuts have right-hand threads.

BATTERY SPECIFICATIONS

CAUTIONWhen battery is disconnected, vehicles equipped with computers may lose memory data. When battery power is restored, driveability problems may exist on some vehicles. These vehicles may require a relearn procedure. See COMPUTER RELEARN PROCEDURES article in the GENERAL INFORMATION section.

All models use group 75 batteries. Vehicles are delivered with maintenance-free batteries. Water need never be added to maintenance-free battery. The battery contains a visual tester. A Green indicator is seen when an adequate charge level exists; a Black indicator implies charging is required, and a Yellow indicator appears when replacement is necessary.

AIR CONDITIONING SERVICING

CAUTIONAvoid breathing R-134a refrigerant and PAG lubricant vapors, exposure may irritate eyes, nose and throat. To remove R-134a from system use R-134a recycling equipment that meets SAE J2210 specifications. If accidental system discharge occurs, ventilate work area before resuming service.
WARNINGR-134a service equipment or vehicle A/C systems SHOULD NOT be pressure tested or leak tested with compressed air. Some mixtures of air/R134a have shown to be combustible at elevated pressures. These mixtures are dangerous and may cause fire and/or explosions. See AIR CONDITIONING SERVICE article in GENERAL INFORMATION section.

ANTI-LOCK BRAKE SYSTEM

The anti-lock brake system contains electronic equipment that can be susceptible to interference caused by improperly installed or high output radio transmitting equipment. Since this interference could cause the possible loss of the anti-lock braking capability, such equipment should be installed by qualified professionals.

On models equipped with anti-lock brake systems, ALWAYS observe the following cautions

  1. DO NOT attempt to bleed hydraulic system without first referring to the appropriate ANTI-LOCK BRAKE SYSTEM article in the BRAKES Section.
  2. DO NOT mix tire sizes. As long as tires remain close to the original diameter, increasing the width is acceptable. Rolling diameter must be identical for all 4 tires. Some manufacturers recommend tires of the same brand, style and type. Failure to follow this precaution may cause inaccurate wheel speed readings.
  3. Use ONLY recommended brake fluids. DO NOT use silicone brake fluids in an ABS-equipped vehicle.

BATTERY WARNING

WARNINGWhen battery is disconnected, vehicles equipped with computers may lose memory data. When battery power is restored, driveability problems may exist on some vehicles. These vehicles may require a relearn procedure. See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION section.

REPLACING BLOWN FUSES

CAUTIONBefore replacing a blown fuse, remove ignition key, turn off all lights and accessories to avoid damaging the electrical system. Be sure to use fuse with the correct indicated amperage rating. The use of an incorrect amperage rating fuse may result in a dangerous electrical system overload.

BRAKE PAD WEAR INDICATOR

CAUTIONIndicator will cause a squealing or scraping noise, warning that brake pads need replacement.

CATALYTIC CONVERTER

CAUTIONContinued operation of vehicle with a severe malfunction could cause converter to overheat, resulting in possible damage to converter and vehicle.

COOLANT (PROPYLENE-GLYCOL FORMULATIONS)

CAUTIONTo avoid possible damage to vehicle use only ethylene-glycol based coolants with a mixture ratio from 44-68% anti-freeze. DO NOT use 100% anti-freeze as it will cause the formation of cooling system deposits. This results in coolant temperatures of over 300° F (149°C) which can melt plastics. 100% anti-freeze has a freeze point of only -8° F (-22°C).
CAUTIONPropylene-Glycol Mixtures has a smaller temperature range than Ethylene-Glycol. The temperature range (freeze-boil) of a 50/50 Anti-Freeze/Water Mix is as follows: Propylene-Glycol -26° F (-32°C) - 257° F (125°C) Ethylene-Glycol -35° F (-37°C) - 263° F (128°C)
CAUTIONPropylene-Glycol/Ethylene-Glycol Mixtures can cause the destabilization of various corrosion inhibitors. Also Propylene-Glycol/Ethylene-Glycol has a different specific gravity than Ethylene-Glycol coolant, which will result in inaccurate freeze point calculations.

DIESEL ENGINES

CAUTIONDO NOT drive vehicles with diesel engines through standing water at speeds faster than 5 MPH or when water is more than 8 inches deep. Water can be sucked into the engine through the air intake and may result in immediate and extensive engine damage.

ELECTROSTATIC DISCHARGE SENSITIVE (ESD) PARTS

WARNINGMany solid state electrical components can be damaged by static electricity (ESD). Some will display a warning label, but many will not. Discharge personal static electricity by touching a metal ground point on the vehicle prior to servicing any ESD sensitive component.

ENGINE OIL

CAUTIONNever use non-detergent or straight mineral oil.

FUEL SYSTEM SERVICE

WARNINGRelieve fuel system pressure prior to servicing any fuel system component (fuel injection models).

HALOGEN BULBS

WARNINGHalogen bulbs contain pressurized gas which may explode if overheated. DO NOT touch glass portion of bulb with bare hands. Eye protection should be worn when handling or working around halogen bulbs.

RADIATOR CAP

CAUTIONAlways disconnect the fan motor when working near the radiator fan. The fan is temperature controlled and could start at any time even when the ignition key is in the OFF position. DO NOT loosen or remove radiator cap when cooling system is hot.

RADIATOR FAN

WARNINGKeep hands away from radiator fan.

TAILGATE

DO NOT drive vehicle with tailgate open, as carbon monoxide can enter vehicle.

WARRANTY INFORMATION

CAUTIONDue to the different warranties offered in various regions and the variety of after-market extended warranties available, please refer to the warranty package that came with the vehicle to verify all warranty options.

BASIC NEW CAR LIMITED WARRANTY

Everything is covered for 12 months or 12,000 miles, whichever occurs first. This basic warranty covers the cost to all parts and labor needed to repair or adjust any vehicle components (except tires) that have been proven defective in material, workmanship, or factory preparation under normal use.

POWERTRAIN WARRANTY

This warranty takes effect upon the expiration of the 12-month/12,000-mile Basic New Car Limited Warranty. Warranty limits are for 36 months/50,000 miles on all vehicles with diesel engines. For vehicles with gasoline engines, refer to customer's copy of warranty information for the exact warranty periods on specific models. The warranty, which is subject to a 100.00 deductible fee for each repair visit, covers the following power train components

  1. Gasoline Engine Cylinder block, heads and internal parts, intake and exhaust manifolds, timing gears, timing gear chain/belt and cover, flywheel, harmonic balancer, valve covers, oil pan and pump, engine mounts, seals and gaskets, water and fuel pumps, turbocharger housings and internal parts, turbocharger valves, seals and gaskets.
  2. Diesel Engine Same components as listed for gasoline engines above, as applicable, plus diesel fuel injection pump external seals.
  3. Transmission Case and internal parts, torque converter, vacuum modulator, transmission mounts, seals and gaskets, transfer case and internal parts, seals and gaskets.
  4. FWD Components Final drive housing and internal parts, axle shafts, constant velocity joints, front hub bearings, seals and gaskets.
  5. RWD Components Axle housing and internal parts, drive shafts, "U" joints, axle shafts, bearings, supports, seals and gaskets.

CORROSION WARRANTY

Covers any rust-through in body sheet metal due to corrosion for 36 months regardless of mileage for 1983-87 vehicles. For 1988 vehicles, the warranty limits are for 6 years or 100,000 miles, whichever occurs first. Warranty begins on the date vehicle is delivered or put in use, whichever occurs first.

EMISSION COMPONENTS "DEFECT" WARRANTY

General Motors Corporation warrants all emission components in the vehicle to be free of defects in material and workmanship which would cause it to fail to meet Federal standards for emission control system at the time the vehicle was built. Warranty begins on the date the vehicle is delivered or first put in use, whichever occurs first. Refer to customers copy of warranty information for exact warranty periods on specific models.

EMISSION "PERFORMANCE" WARRANTY

Listed below are the primary components which affect the vehicle's emissions performance. Other emission control related parts of these components are covered by the performance warranty, where applicable. If another part fails due to the failure of one of these components, both parts are covered. The warranty, which begins on warranty start date, covers primary components for 5 years/50,000 miles and a few items, for 24 months/24,000 miles (see below).

For some California vehicles, the warranty limits are for 3 years/50,000 miles with the same exceptions. For some California vehicles, certain components listed are warranted for 7 years or 70,000 miles, whichever occurs first. Refer to customer's copy of warranty information for additional information on specific model applications.

Gasoline Engines

  1. Air Injector Reactor (AIR) Pump, Air Distributor & Valves
  2. Pulse AIR Valve And Associated Parts
  3. PCV Valve System And Oil Filler Cap
  4. EGR Valve And Associated Controls
  5. Choke Switches And Carburetor Parts
  6. Engine Control Module And Associated Sensors (Some Models)
  7. Electronic Fuel Injection System
  8. Carburetor Feedback Control System
  9. Throttle Return Control Parts (Some Models)
  10. Catalytic Converter, Catalyst And Associated Parts
  11. Fuel Tank, Filler Cap, Restrictor And Vapor Control Valves
  12. Evaporative Emission Control Carbon Canister And Associated Controls
  13. Emission Related Hoses, Clamps, Belts, Pulley, Tubes, Fittings And Wiring Harness

24 Months/24,000 Miles

  1. Thermostatic Air Cleaner Switch, Control Valve And Associated Parts
  2. EFE Valve, Heater And Associated Controls (Some Models)
  3. Exhaust System-to-Catalytic Converter
  4. Distributor Parts And Associated Controls
  5. Spark Plugs And Ignition Wires
  6. Intake, Exhaust Manifolds And Turbocharger (California)

Diesel Engine

  1. Diesel Fuel Injection Pump, Nozzles And Lines (24 Months/24,000 Miles)
  2. EGR Valve And Associated Controls (5 Years/50,000 Miles)

FUSES & CIRCUIT BREAKERS

Vehicle wiring is protected from short circuits by a combination of fuses, circuit breakers, and fusible thermal links. This greatly reduces the chance of fires should a electrical overload occur.

In the event of an electrical overload, the windshield wipers will remain stopped until motor cools off. The headlight will flash on/off or remains off in some cases as both are protected by circuit breakers. If such occurs, have the system inspected immediately to correct the cause of overloading.

Scheme 3

Scheme 3: FUSES & CIRCUIT BREAKERS

Fuse & Circuit Breaker Identification

  1. 1 - 5 Amp - Cruise Control, Instrument Panel Lights
  2. 2 - 20 Amp - Electric Choke, Oil Pressure Switch, Oil Pressure Gauge
  3. 3 - 5 Amp - Instrument Illumination Lights, Headlight-On Warning, Electronic Touch A/C
  4. 4 - 30 Amp - Circuit Breaker, Power Windows, Sun Roof
  5. 5 - 10 Amp (Diesel) Coolant Switch, Fast Idle Relay, Fast Idle Controller
  6. 6 - 25 Amp - Heater A/C
  7. 7 - 10 Amp - ECM
  8. 8 - 15 Amp - Diesel Engine
  9. 9 - 25 Amp - Windshield Wiper/Washer, Theft Deterrent
  10. 10 - 10 Amp - Stoplights & Hazard Lights
  11. 11 - 20 Amp - Seat Belt Light, Electronic Tone, Rear Window Defogger, Brake Warning System, Turbo Boost Light, ECM B
  12. 12 - 20 Amp - Taillights & Cornering Lights, Side Marker Lights, Parking Lights, License Plate Light, Radio Clock, Theft Deterrent, Twilight Sentinel, Opera Lights
  13. 13 - 10 Amp - Radio & Power Antenna
  14. 14 - 30 Amp - Circuit Breaker, Power Seats, Power Door Locks, Rear Window Defogger, Theft Deterrent System
  15. 15 - 20 Amp - Turn Signal, Back-Up Lights
  16. 16 - 20 Amp - Clock, Lighter, Glove Box Light, Electronic Tone, Power Antenna, Radio Clock, Radio Capacitor, Dome Light, Sail Panel Light, Trunk & Reading Lights, Headlight-On Warning, Door Locks, Underhood Light, Courtesy Lights, Electronic A/C, Theft Deterrent, Vanity Lights
  17. 17 - 20 Amp - Dome, Vanity & Trunk Lights, Glove Box & Door Lights, Courtesy Lights, Trunk Release, Cigarette Lighter
  18. 18 - 10 Amp - ECM/Ignition
  19. 19 - 20 Amp - Gauges, Indicator Lights, Vehicle Speed Sensor, Check Engine Light, Check Engine Light, Driver Module, Torque Convertor Clutch, Glow Plugs (Diesel), Fuel Control (Diesel)