Question about 2003 GMC Yukon XL
I suggest performing a throttle body cleaning.
Remove the black air filter housing and hose going to
engine. Grab some rubber gloves,carburater cleaner,and
rags. Open throttle plate , spray some cleaner onto a rag
then clean plate and housing. DO NOT SPRAY CLEANER
INTO THROTTLE BODY BECAUSE ELECTRICAL SENSORS
MAY GET DAMAGED. Make sure throttle plate moves freely
and does not stick. Re- install housing and hose.
Test drive and confirm repair. Good luck.
Posted on Oct 11, 2010
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Posted on Jan 02, 2017
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