Manufacturer communication — 2006 GMC YUKON DENALI XL

• All brands and models, model years 2000 - 2018, with V6 or V8 push rod engines with roller rockers.

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  Models Brand: Model: Model Years: VIN: Engine: Transmissions: from to All All 2000 - 2018 All All V6 or V8 push rod engines with roller rockers All

• A technician may find needle bearings in the oil pan during an oil change.

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  Technician may find needle bearings in the oil pan during an oil change.

Steps to confirm (in the document’s order)

1. If roller rocker arm needle bearings are found during an oil change, inspect all the roller rocker arms.

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   If a dealer finds roller rocker arm needle bearings during an oil change, inspect all the roller rocker arms.

2. There should be 66 bearings, 33 a side.

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   There should be 66 bearings 33 a side

Repair

1. If a damaged rocker arm is found, replace only the broken roller rocker arm; replacing the remaining roller rocker arms is not necessary.

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   If a damaged rocker arm is found, only replace the broken roller rocker arm. Replacement of the remaining roller rocker arms is not necessary.

2. Needle bearings may also be found in the cylinder head oil drains or the oil pan; clean the oil drains to retrieve them.

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   During the repair needle bearings may also be found in cylinder head oil drains or oil pan. Be sure to clean the oil drains to retrieve the needle bearings.

Caution

• The needle bearing diameter is larger than the oil pump pickup screen mesh, which prevents the bearing from being pulled into the engine oil pump.

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  Please Note: The diameter of the needle bearing is larger than the oil pump pickup screen mesh preventing the needle bearing from being pulled into the engine oil pump.