Question about 2002 GMC Yukon XL
Problem started after driving sixty miles in heavy wind. No other signs except check engine light.
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Posted on Jan 02, 2017
Denalis are famous for clogged fuel filters. Change the fuel filter first and see what happens, Get the code for the check engine light. It could be you have a clogged EGR ports. Remove EGR valve and clean out the ports, replace with new gasket and see what happens. Advise of results.
Posted on Dec 02, 2008
Check the fuel cap!! If the vacuum relief is not working it can impede the fuel flow and cause the engine to shut down or not restart after a stop. Waiting usually gives things a chance to stabalize and the engine will restsrt. When this happens again try loosening the cap and see if the engine will restart.....If it restarts immediately, REPLACE the fuel cap..Do Not leave it loose because this will cause other problems. If it is not the fuel cap the problem may be the filter, the fuel pump, or aome other fuel system malfunction.
Posted on Jan 24, 2010
Testimonial: "Great will try it "
SOURCE: I have GMC Yukon XL
jeeze, so many "common" causes. but THE most likely cause is an oxygen sensor out of range. replacing same and driving several miles might get you lucky and save some money. but note, a restricted fuel or air filter will likewise make this sensor report bad data and set the same code. in other words, don't ignore maintenance issues...
Posted on Aug 30, 2010
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