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Selected vehicle: 2006 · GMC Yukon XL Denali

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Source reference 10216361

Manufacturer communication — 2006 GMC YUKON

ReferenceReporter type: ManufacturerVISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM

Relation to the target vehicle

  • The source's vehicle field says Yukon; whether it is an XL is not stated.
  • The trim (Denali) is not stated.
Model year
Match 2006 — Source vehicle field
Model
Unknown YUKON — Source vehicle field
Trim
Unknown

What the manufacturer’s document says

PIT5099F ・ fault and correction ・ for GM vehicles in general

Applies to

  • Applies to all brands and models, 2000 - 2021.

    the passage
    All All 2000 - 2021 All All All All

Fault

  • The customer may comment that the A/C blows warm or performs poorly.

    the passage
    Customer may comment that there A/C blows warm or they have poor A/C performance.

Finding the cause

Steps to confirm (in the document’s order)

  1. Record the A/C high and low pressures, the high side sensor reading and the A/C compressor duty cycle.

    the passage
    * A/C High and Low pressures * High side sensor reading * A/C compressor duty cycle
  2. Record the outside temperature, the humidity and the vent temperature.

    the passage
    * Outside temperature * Humidity * Vent temperature
  3. With an automatic HVAC system, read with the scan tool the evaporator temperature sensor (if equipped), the inside and outside temperature sensors and the duct temperature sensors.

    the passage
    If the unit is equipped with an Automatic HVAC system, go into the HVAC data with the scan tool and get the following readings: * Evaporator temperature sensor reading (if equipped) * Inside temperature sensor reading * Outside temperature sensor reading * Duct temperature sensor readings

Compiled by reading the full text of the document; each point stands on the passage shown. Check the document itself, linked below, before working on a vehicle.

Stated content

  1. Communication summary

    本プレミナリーインフォメーション通知は、ヒーターベントエアコンが温風を吹出する車両に関する整備士向け情報を提供するものです。ゼネラルモーターズテクニカルアシスタンスセンター整備士に連絡する前に、高圧側圧力、低圧側圧力、外気温、湿度、およびベント温度を確認する必要があります。 Machine translation (unreviewed)

    This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature.
    Go to this passage in the original

Source

Source
NHTSA Manufacturer Communications
Source reference
10216361
Received by source
2022-07-25
Incident date
Unknown

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