Manufacturer communication — 2006 GMC YUKON DENALI XL

• Applies to all passenger cars and trucks, model years 2000 to 2022, all gasoline engines.

  the passage

  All Passenger Cars and Trucks 2000 2022 — — All Gasoline Engines

• An oil leak from underneath the front of the vehicle after a prior oil service; it can take several thousand miles to occur.

  the passage

  Some customers or dealers may comment on an oil leak coming from underneath the front of the vehicle after a prior oil service was performed. This leak can take several thousand miles to occur.

Possible causes

• The oil leaks from between the oil filter gasket and the mounting surface.

  the passage

  This may be caused by an oil leak coming from between the oil filter gasket and mounting surface.

Steps to confirm (in the document’s order)

• The filter may be very easy to remove, sometimes by hand.

  the passage

  Technicians may also notice that the filter is very easy to remove and can sometimes be removed by hand.

Repair

1. Lubricate the new oil filter gasket with clean engine oil.

   the passage

   1. Lubricate the NEW oil filter gasket with clean engine oil.

2. Install the oil filter 1 full turn after the gasket contacts the sealing surface on the filter mounting flange.

   the passage

   2. Install Oil Filter 1 full turn after gasket makes contact with the sealing surface on the filter mounting flange.

Parts

• The revised installation specification covers all spin-on oil filters PF64, PF63, PF48, PF66, UPF64R, UPF63R, UPF48R and UPF66R.

  the passage

  engineering has released a revised installation specification for all Spin-on oil filters PF64, PF63, PF48, PF66, UPF64R, UPF63R, UPF48R and UPF66R.