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GMC Yukon 2000–2006

GMC YukonModel years 2000–2006

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1 conditions added

Common on this vehicle:NoiseWarning light

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1 records state a cause or a remedy. Each record is shown as short labels in the order fault → finding the cause → correction. Press a label to narrow to the records that state it.

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  1. Manufacturer communication2003 GMC YUKON ・ 2003-01-01

    Transfer case applications and normal 4WD operating characteristics (NVG 246 EAU for 2003)

    1. 1Fault

      • The active 4-wheel drive system gives the driver five choices: 2 HI, Auto 4WD, 4 HI, 4 LO and neutral.

    2. 2Finding the cause

      Steps to confirm (in the document’s order)

      • One way to decide whether a noise or condition is unusual or typical is to operate a similar vehicle under similar conditions.

    3. 3Correction

      Caution

      • Driven in 4-HI or 4-LO these vehicles can also crow-hop; in Auto, the clutch pack compensates for the different driveshaft speeds.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：The transfer case table lists RPO NP8 for the Silverado/Sierra, Tahoe/Yukon, Suburban/Yukon XL and Avalanche, 2003: the NVG 246 EAU, a 2-speed active, selectable transfer case with the new electrical architecture.
    • Condition：The active 4-wheel drive system gives the driver five choices: 2 HI, Auto 4WD, 4 HI, 4 LO and neutral.
    • Caution：Driven in 4-HI or 4-LO these vehicles can also crow-hop; in Auto, the clutch pack compensates for the different driveshaft speeds.
    • Confirm：One way to decide whether a noise or condition is unusual or typical is to operate a similar vehicle under similar conditions.

    Open this issue of GM TechLink ↗ The points above are read from an article of TechLink, GM’s monthly publication for dealership technicians. The article itself is not reproduced here.

    Remedy
    All-Wheel Drive and 4-Wheel Drive NP8 Silverado/Sierra, Tahoe/Yukon, Suburban/Yukon XL, Avalanche, 2003 NVG 246 EAU 2-speed active t-case, selectable, new electrical architecture This system provides the driver with five choices: 2 HI, Auto 4WD, 4 HI, 4 LO, and neutral (fig. 5) . When driven in 4-HI or 4-LO, these vehicles can experience crow hopping as well. However, when driven in Auto, the operation of the clutch pack compensates for different driveshaft speeds. One way to determine if a noise or condition is unusual or typical is to operate a similar vehicle under similar conditions.