Question about 2005 GMC Yukon

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Check engine light is on -lacking power

Check engine light is on - lacking power

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  • Romel Edmondson
    Romel Edmondson May 11, 2010

    What kind of vehicle is this problem happening with?

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Don't guess with this vehicle. Take it to an Auto_zone they will check codes for FREE. Get the the codes and their meaning and get back to me if you need more help. Good Luck

Posted on Dec 29, 2008

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  • GMC Master
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Go to Autozone and have them run a test (it's free) to see what trouble code is present, this will help figure out which part has failed.

Posted on Dec 29, 2008

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Posted on Jan 02, 2017

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SOURCE: check engine light illuminated, cruise light

is probably your o2 sensor. measures amount of fuel to oxygen ratio.causing lack of power. depending on v6 or 4 depends on wether you have 2 sensors or not hope this helps,ones by the header pipe and other just behind your catalytic converter on exhaust.

Posted on Nov 23, 2009

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