Question about 2005 GMC Canyon
Motor running lean
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Posted on Jan 02, 2017
If you are lean on the left side that rules out a spark issue so you either have a injector cutting out or a vacuum leak on that side.
Posted on Nov 29, 2009
Check the intake manifold gaskets for leakage. It will tend to run rougher in the morning when it is cold. Check for vacuum leaks on any hose connected to the intake plenum too.
Posted on Dec 13, 2009
SOURCE: What does it mean when
A lean bank 1 and 2 is indicating there is not enough fuel being injected to support proper combustion.
Leading causes can include but are not limited to......
1) low fuel pressure or plugged fuel filter.
2) vacuum leak causing lean condition.
3) air intake hose or crank case not sealed properly and bypassing the MAF sensor or the MAF sensor element is dirty.
4) wrong fuel or poor quality fuel used.
Hope this helps. If the Service Engine Soon light is illuminated, there will be fault codes associated the light. Get the vehicle scanned for free at your local Auto Zone or Advanced Auto and report back.
Posted on Nov 25, 2010
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