Question about 2005 GMC Sierra 2500HD 4WD
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Posted on Jan 02, 2017
you may have two oxugen sensors on your yukon. if so the oxygen sensor that controls that bank may be bad. from what you mentioned in your complaint, it sounds like it is the oxygen sensor.
Posted on Dec 24, 2008
Bulletin No.: 03-06-02-005B
Date: November 18, 2004
Engine Coolant Loss with No Visible Leaks (Reseal Injector Sleeve)
Some owners may comment on engine coolant loss with no visible leaks. Excessive white smoke or a coolant type odor coming from the exhaust pipe, along with low coolant levels, may indicate coolant in the combustion chamber.
Condition may be caused by engine coolant entering the cylinder due to a dirty or damaged seal between the fuel injector sleeve and the cylinder head.
If it's black smoke, you could have a faulty or dirty EGR valve and may not be closing 100%. Remove the EGR valve and clean it with spraying carb cleaner and reinstall after inspecting the valve can move without any binding. Goo luck and hope this helps.
Posted on Jun 25, 2009
Sounds like the injectors have given up. Depending on the purchase date and milage gm has extended the warrenty on the injectors. You will need to call a local dealer and see if you truck may be under warrenty. Also if you have and power adders you must remove them. Having power adders will kill you warrenty.
Posted on Oct 13, 2009
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