Question about 2002 GMC Sierra 1500
Posted on Dec 11, 2009
no dtc definition found
EGR FLOW insufficient
Posted on Aug 24, 2010
Check the dist.cap and wires
Posted on Dec 12, 2009
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Posted on Jan 02, 2017
SOURCE: my engine light is on
This is sign of a vacuum leak (possible off of the PCV system). This causes additional air to be introduced into the engine causing the fuel mixture to lean out. With the engine running, shoot short burst of starting fluid around the vacuum lines. When the engine revs briefly, you have found (at least one of) your leaks.
Posted on Jan 07, 2011
Check for vacuum leaks to start. Then check the evap system. I just replaced a evap vent solenoid on a suburban with the same codes. fixed the problem.
Posted on Apr 17, 2011
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