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Old 06-11-2015, 06:50 PM   #1
6669charger
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Join Date: Jan 2008
Location: lafayette, Indiana
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04 yukon hard start

I have a 04 Yukon 5.3. When I start it in the morning it chugs and puts out black smoke. After it runs about 3 minutes its fine the rest of the day.
Now its getting so I have to hold the pedal down 3/4 down to get it to start.

Any Ideas?
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