Manufacturer communication — 2006 GMC YUKON DENALI XL

Fitment confirmedReporter type: ManufacturerSUSPENSION

Relation to the target vehicle

The source's vehicle field includes the trim.

Model year: Match 2006 — Source vehicle field
Model: Match YUKON DENALI XL — Source vehicle field
Trim: Match Denali — Source vehicle field

What the manufacturer’s document says

05-03-08-002F ・ normal characteristic (no repair) ・ for GM vehicles in general

Applies to

Applies to 2015 and prior GM passenger cars and trucks.
the passage
2015 and Prior GM Passenger Cars and Trucks

Finding the cause

Steps to confirm (in the document’s order)

The shock absorber or strut does not have to be removed from the vehicle for the inspection.
the passage
Note: The shock absorber or strut assembly DOES NOT have to be removed from the vehicle to perform the following inspection procedure.
Do not replace (level 1): oil or fluid residue only on the bottom or top of the shock absorber, not originating from the shaft seal at the upper part of the lower shock tube.
the passage
Do Not Replace shock absorbers displaying condition 1 or 2 levels of seepage. 1. Oil or fluid residue only on the bottom or top of the shock absorber and not originating from the shaft seal (the upper part of the lower shock tube).
Do not replace (level 2): a light film or residue from the shaft seal on approximately 1/3 or less of the lower shock tube.
the passage
2. Light film/residue on approximately 1/3 (a) or less of the lower shock tube (A) and originating from the shaft seal.

Correction

Repair

Replace (level 3): an oil drip or trail down the lower shock tube originating from the shaft seal.
the passage
Replace shock absorbers displaying conditions 3 and 4 levels of leaks. 3. Oil drip or trail down the lower shock tube and originating from the shaft seal.
Replace (level 4): an extreme wet film of oil from the shaft seal covering more than 1/3 of the lower shock tube.
the passage
4. An extreme wet film of oil covering more than 1/3 (b) of the lower shock tube and originating from the shaft seal.

Caution

Shock absorbers and struts are fluid-filled and normally show some seepage, defined as an oil film or dust accumulation on the outside of the shock housing.
the passage
Shock absorbers and strut assemblies are fluid-filled components and will normally exhibit some seepage. Seepage is defined as oil film or dust accumulation on the exterior of the shock housing.
Shock absorbers and struts are not to be replaced under warranty for seepage.
the passage
Shock absorbers and struts are not to be replaced under warranty for seepage.

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

Communication summary
本情報提示は、ショックまたはストラットから可能な外部ソースからの液体の残留物とシャフトシール漏れを区別するための診断を技術者が行う際に支援するために作成されました。 Machine translation (unreviewed)
This informational bulletin was created to aid the technician in diagnosing the difference between a shock or strut that has a fluid residule from a possible external source from a leaking shaft seal.
Go to this passage in the original

Source

Source: NHTSA Manufacturer Communications
Source reference: 10126308
Received by source: 2017-12-22
Incident date: Unknown

Open original text and source Open the provider's page (external)