1992 Buick Riviera A/C & Heater Service (ONLINE REPAIR MANUALS)

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A/C & HEATER SERVICE PROCEDURES FOR 1992 Buick Riviera AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 1992 Buick Riviera cars and light trucks from 1990+

Electrical Symbol & Wire Color Code Identification -> Wire Color Code Identification -> Domestic Vehicles
Vehicle: 1992 Buick Riviera 3.8 V6 GAS

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A/C & HEATER SERVICE PROCEDURES FOR 1992 Buick Riviera AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 1992 Buick Riviera cars and light trucks from 1990+

Component Replacement & Adjustment -> Eldorado, Riviera, Seville, Toronado & Trofeo -> THERMOSTAT, REPLACE -> ELDORADO & SEVILLE -> RIVIERA, TORONADO & TROFEO
Vehicle: 1992 Buick Riviera 3.8 V6 GAS

ELDORADO & SEVILLE

  • Disconnect battery ground cable, then partially drain cooling system.
  • Remove upper air filter assembly, if necessary, then disconnect upper radiator hose from thermostat housing.
  • Remove thermostat housing retaining bolts as shown in Fig. , then housing, gasket and thermostat.
  • Reverse procedure to install, noting the following:
    • Ensure thermostat housing mating surfaces are free of old gasket material.
    • Torque the...

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A/C & HEATER SERVICE PROCEDURES FOR 1992 Buick Riviera AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 1992 Buick Riviera cars and light trucks from 1990+

Air Bag System Precautions -> General Motors Corp. -> Disarming -> 1990 -> 1990-93 -> 1990-95 -> 1990-97 -> 1991 -> 1991-93 -> 1991-94 -> 1991-95 -> 1992-93 -> 1992-99 -> 1993-2002 -> 1993-94 -> 1993-98 -> 1994 -> 1994-2002 -> 1994-95 -> 1994-96 -> 1994-98 -> 1995-2002 -> 1995-96 -> 1995-97 -> 1995-98 -> 1995-99 -> 1996 -> 1996-2001 -> 1996-97 -> 1997 -> 1997-2002 -> 1997-98 -> 1997-99 -> 1998-2000 -> 1998-2002 -> 1998-99 -> 1999 -> 1999-2000 -> 1999-2001 -> 1999-2002 -> 2000-02 -> 2001-02 -> 2002 -> 2003 -> 2003-04 -> 2003-04 Except Malibu Maxx -> Achieva & Skylark -> Alero -> Astro & Safari -> Aurora -> Avalanche -> Aveo -> Aztek & Rendezvous -> Beretta & Corsica -> Blazer, Jimmy, Sonoma & S-10 -> Bonneville, Eighty-Eight, LeSabre, LSS, Ninety-Eight & Regency -> Bravada, Envoy, Rainier, SSR & TrailBlazer -> C/K Series -> Camaro & Firebird -> Canyon & Colorado -> Caprice, Custom Cruiser & Roadmaster -> Catera -> Cavalier & Sunfire -> Century -> Corvette -> Coupe -> CTS -> Cutlass -> Cutlass Ciera & Cruiser -> Cutlass Supreme -> DeVille -> Eldorado -> Escalade -> Express, G Series & Savana -> Fleetwood -> Grand Am -> Grand Prix & Intrigue -> Impala -> ION -> L-Series -> Light Trucks & Vans -> Lumina -> Lumina APV, Montana, Silhouette, Trans Sport & Venture -> Malibu -> Malibu Maxx -> Metro -> Monte Carlo -> Park Avenue -> Passenger Cars -> Prizm -> Reatta, Toronado & Trofeo -> Regal -> Riviera -> S-Series -> Sedan -> Seville -> Sierra & Silverado -> SRX -> Storm -> Suburban, Tahoe, Yukon & Yukon XL -> Tracker -> Vibe -> VUE -> XLR -> Zone 1 -> Zone 10 -> Zone 12 -> Zone 2 -> Zone 3 -> Zone 4 -> Zone 5 -> Zone 6 -> Zone 7 -> Zone 8 -> Zone 9 -> Zones 1 & 7 -> Zones 2 & 6 -> Zones 5 & 9 -> Zones 7 & 9
Vehicle: 1992 Buick Riviera 3.8 V6 GAS

Passenger Cars

The Sensing and Diagnostic Module (SDM) can maintain enough voltage to cause air bag deployment for up to 10 minutes after the ignition is turned Off and the battery is disconnected. Servicing the Supplemental air bag (SIR) system during this period may result in accidental deployment and personal injury.

Achieva & Skylark
1994-96
  • Ensure front wheels are in straight-ahead position.
  • Turn ignition switch to LOCK position.
  • Remove AIR BAG fuse from fuse block.
  • On 1995 models, remove lefthand sound insulator panel to ac...

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A/C & HEATER SERVICE PROCEDURES FOR 1992 Buick Riviera AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 1992 Buick Riviera cars and light trucks from 1990+

Cooling Fans -> Passenger Cars Except Saturn -> BONNEVILLE -> COMPONENT REPLACEMENT -> Coolant Fan Input Test -> Coolant Fan, Replace -> DESCRIPTION -> High Speed Coolant Fan Input Test -> Lefthand Coolant Fan Does Not Operate In High Speed w/A/C Head Pressure Above 210 psi -> Lefthand Coolant Fan Runs Continuously In High Speed w/Ignition Switch At Run, Engine Coolant Cool & A/C Off -> Lefthand Coolant Fan Runs Continuously In Low Speed w/Ignition Switch At Run, Engine Coolant Cool & A/C Off -> Low Speed Coolant Fan Input Test -> System Check -> System Diagnosis -> SYSTEM DIAGNOSIS & TESTING -> TROUBLESHOOTING
Vehicle: 1992 Buick Riviera 3.8 V6 GAS

DESCRIPTION

Two coolant fans, wired in parallel, operate whenever cooling is required.

The Powertrain Control Module (PCM) has two coolant fan control terminals, one for high speed and one for low speed. When the PCM's low speed control closes at connector C3, terminal C4, it grounds the low speed coolant fan relay coil. When the ignition switch is in the run position and relay contacts close, voltage is supplied to the coolant fans. The coolant fan resistors drop the voltage to the lefthand coolant fan, causing it to run in low speed. The righthand coolant fan runs a...

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A/C & HEATER SERVICE PROCEDURES FOR 1992 Buick Riviera AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 1992 Buick Riviera cars and light trucks from 1990+

Cooling Fans -> Passenger Cars Except Saturn -> CAVALIER -> 3.1L Engine -> COMPONENT REPLACEMENT -> Coolant Fan Does Not Turn Off With Engine Cool, A/C Mode Selector Off & Ignition Switch In RUN -> Coolant Fan Does Not Turn On -> COOLANT FAN, REPLACE -> DESCRIPTION -> Except 3.1L Engine -> System Check -> System Diagnosis -> SYSTEM DIAGNOSIS & TESTING -> TROUBLESHOOTING
Vehicle: 1992 Buick Riviera 3.8 V6 GAS

DESCRIPTION

The coolant fan is turned on and off by the ECM based on inputs from the coolant temperature sensor, vehicle speed sensor and the A/C system, if equipped. Battery voltage is applied at all times to terminal 1 of the coolant fan relay and, when the ignition switch is in RUN position, battery voltage is applied to terminal 5 of the relay. The ECM energizes the coolant fan relay by grounding circuit 335. The relay energizes and battery voltage is applied to the coolant fan.

TROUBLESHOOTING

  • If coolant fan does not operate, check fusible link L and H...

CLICK HERE TO GET FULL ACCESS TO 1992 Buick Riviera A/C & HEATER SERVICE PROCEDURES

A/C & HEATER SERVICE PROCEDURES FOR 1992 Buick Riviera AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 1992 Buick Riviera cars and light trucks from 1990+

Cooling Fans -> Passenger Cars Except Saturn -> STORM -> COMPONENT REPLACEMENT -> Coolant Fan, Replace -> DESCRIPTION -> SYSTEM DIAGNOSIS & TESTING -> TROUBLESHOOTING
Vehicle: 1992 Buick Riviera 3.8 V6 GAS

DESCRIPTION

With the engine running, the generator applies voltage to the restart relay. The voltage passes through the closed contacts of the restart relay to the condenser fan relay and the radiator fan relay. The triple switch closes when the refrigerant pressure is above 214 psi. When the triple switch closes, the condenser fan and radiator fan relays energize.

The condenser fan receives battery voltage from fuse E-4 through the closed contacts of the condenser fan relay. The radiator fan receives battery voltage from fusible link FL-4 through the radiator fan relay.

...

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