Question about 2005 GMC Envoy
Under the assumption that I need to replace valve guides in a 2005 GMC Envoy 5.3L engine. Consuming 3+ qts oil every 3,000 mile oil change. no leaks. Only have 70K mile on it. Black tail pipe and a cloud of smoke once in a great while. No other indications that I am burning that much oil. Runs great, plenty of power, plugs look ok. 30 sec of lifter noise at start up- GM standard to me. Gm says No problem oil consumption is 1 qt every 2k miles.
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Posted on Jan 02, 2017
Sounds funny, I would take it to an indepened repair shop and have them check it out, we have many customer's with Yukon and have not heard of that, I have a GMC with over 315,000 miles and between oil changes, maybe a qts low, have it check else where.
Posted on Jul 08, 2010
Had the same problem. There is an updated PCV system as the original drew oil from the crankcase and filled the intake manifold. TB on this (don't know the number). Make sure they clean out your intake manifold as there was oil pooled in mine. If you rev to 2000 rpm in park you can see blue smoke prior to fix.
Posted on Feb 23, 2011
SOURCE: I just bought a 2005
Thanks for choosing FixYa and welcome to the site. These big engines burn oil a lot, but not that much. If you haven't already, you need to get under the engine and check the back wall of the motor for oil leaks. Since there is no black smoke, your fine on the back end. Have you checked the back wall from underneathe? Also, is your check engine light on? Thanks.
Posted on Aug 16, 2011
SOURCE: 2006 gmc envoy denali 5.3, no oil leaks, 61000 miles, steady vacuum gauge reading at 16, runs and starts very good. Takes 1 quart of oil per 1300 to 1500 miles, no exhaust smoking. Why so much oil ?
Google search GM 5.3 oil consumption. This is a known and common issue.
Posted on Oct 27, 2012
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