2000 Gmc Yukon Check Engine Light On Loosing Power Give Gas Also Heat Coming

2000 GMC YUKON
108,000 MILES
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My check engine light is on and i am loosing power when I give it gas. I also have some heat coming into the interior of the truck for some reason I took it to autozone and they said that my number 1 o2 sensor is bad. What do I do to fix these problems?
Oct 26, 2012 at 9:32 PM
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