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Buick Enclave: Specifications, Diagnostic Information and Procedures

Buick Enclave 2008-2017 Service Manual / HVAC / Heating, Ventilation and Air Conditioning / Specifications, Diagnostic Information and Procedures

SPECIFICATIONS

FASTENER TIGHTENING SPECIFICATIONS

Fastener Tightening Specifications

Buick Enclave. Heating, Ventilation and Air Conditioning

REFRIGERANT SYSTEM SPECIFICATIONS

Refrigerant System Specifications

Buick Enclave. Heating, Ventilation and Air Conditioning

Buick Enclave. Heating, Ventilation and Air Conditioning

DIAGNOSTIC INFORMATION AND PROCEDURES

LEAK TESTING

Special Tools

Refrigerant Leak Testing

NOTE: General Motors vehicles are now manufactured with fluorescent dye installed directly into the air conditioning (A/C) system.

The fluorescent dye mixes and flows with the polyalkylene glycol (PAG) oil throughout the refrigerant system.

Verifying some passive leaks may require using the J 39400-A halogen leak detector, even though the A/C system contains fluorescent dye.

The only time that adding additional fluorescent dye is required is after flushing the A/C system.

Fluorescent Leak Detector

Fluorescent dye will assist in locating any leaks in the A/C system.

NOTE: PAG oil is water soluble.

The sealing cap is the primary seal for the service ports.

Fluorescent Dye Injection

NOTE: Use only fluorescent dye approved by General Motors.

  • J 41447 R-134A A/C tracer dye-box of 24 can be poured directly into a removed A/C component.
  • J 46297-12 replacement dye cartridges is injected into the low side port using J 46297 A/C dye injector kit.

NOTE: Do NOT overcharge the A/C system with dye. Use only one 7.39 ml (0.25 oz) charge.

Halogen Leak Detector

WARNING: Do not operate the detector in a combustible atmosphere since its sensor operates at high temperatures or personal injury and/or damage to the equipment may result.

Ensure that the vehicle has at least 0.45 kg (1 lb) of refrigerant in the A/C refrigeration system in order to perform a leak test. Refer to Refrigerant Recovery and Recharging for recharging the A/C system.

NOTE: Halogen leak detectors are sensitive to the following items:

Clean and dry all surfaces in order to prevent a false warning. Liquids will damage the detector.

NOTE: Follow a continuous path in order to ensure that you will not miss any possible leaks. Test all areas of the system for leaks.

Follow the instructions supplied with the J 39400-A halogen leak detector.

AIR CONDITIONING (A/C) SYSTEM PERFORMANCE TEST

This test measures the operating efficiency of the A/C system under the following conditions:

Test Description

The numbers below refer to the step numbers on the diagnostic table.

1

This step determines if the A/C system has at least the minimum refrigerant charge required to operate the system without damage.

2

This step measures the performance of the A/C system.

3

This step is to allow for vehicle variations as well as high ambient temperatures.

Air Conditioning (A/C) System Performance Test

Buick Enclave. Heating, Ventilation and Air Conditioning

Buick Enclave. Heating, Ventilation and Air Conditioning

Buick Enclave. Heating, Ventilation and Air Conditioning

A/C Performance Table

Buick Enclave. Heating, Ventilation and Air Conditioning

Buick Enclave. Heating, Ventilation and Air Conditioning

A/C DIAGNOSTICS CHART

A/C Diagnostics Chart

Buick Enclave. Heating, Ventilation and Air Conditioning

Buick Enclave. Heating, Ventilation and Air Conditioning

HEATING PERFORMANCE DIAGNOSTIC

Heating Performance Diagnostic

Buick Enclave. Heating, Ventilation and Air Conditioning

Buick Enclave. Heating, Ventilation and Air Conditioning

DEFROSTING INSUFFICIENT

Defrosting Insufficient

Buick Enclave. Heating, Ventilation and Air Conditioning

Buick Enclave. Heating, Ventilation and Air Conditioning

NOISE DIAGNOSIS - AUXILIARY BLOWER MOTOR

Noise Diagnosis - Auxiliary Blower Motor

Buick Enclave. Heating, Ventilation and Air Conditioning

Buick Enclave. Heating, Ventilation and Air Conditioning

NOISE DIAGNOSIS - BLOWER MOTOR

Noise Diagnosis - Blower Motor

Buick Enclave. Heating, Ventilation and Air Conditioning

Buick Enclave. Heating, Ventilation and Air Conditioning

AIR CONDITIONING COMPRESSOR OIL DIAGNOSIS

Air Conditioning Compressor Oil Diagnosis

Buick Enclave. Heating, Ventilation and Air Conditioning

Buick Enclave. Heating, Ventilation and Air Conditioning

NOISE DIAGNOSIS - AIR CONDITIONING (A/C) SYSTEM

Noise Diagnosis - Air Conditioning (A/C) System

Buick Enclave. Heating, Ventilation and Air Conditioning

Buick Enclave. Heating, Ventilation and Air Conditioning

Buick Enclave. Heating, Ventilation and Air Conditioning

Buick Enclave. Heating, Ventilation and Air Conditioning

NOISE DIAGNOSIS - HVAC MODULE

Noise Diagnosis - HVAC Module

Buick Enclave. Heating, Ventilation and Air Conditioning

Buick Enclave. Heating, Ventilation and Air Conditioning

ODOR DIAGNOSIS

Odor Diagnosis

Buick Enclave. Heating, Ventilation and Air Conditioning

Buick Enclave. Heating, Ventilation and Air Conditioning

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 Description and Operation

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 HVAC - Automatic

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 Exterior Lighting

The exterior lamps control is located on the instrument panel, to the left of the steering wheel. : Turns the automatic light control on or off. AUTO: Automatic operation of the headlamps at normal brightness and other exterior lamps. Manual operation of the parking lamps and other ex

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