Question about 2002 GMC Yukon XL
Varnished gas can cause this problem, its the case where the fuel sits a while and starts to change states from a liquid to a more solidified substance. theirs several additives that will help you for example (M2616
Engine Tune-Up - Removes gum, varnish, and carbon from internal engine parts.) Anny cleaner that you add to the fuel that claims to remove varnish will be good. and should be a fairly cheap fix, good luck with it.
here is a site to gte info about the cleaner
please note: thewir are several types to chose from.
Posted on Sep 08, 2009
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Posted on Jan 02, 2017
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Fuel injectors may be dirty.. or plugged.
The car just sitting there may have caused the gas to go bad which may have
given them a head start on plugging from the get go. Get some cleaner for it.
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