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Old 12-08-2020, 01:25 PM   #3
biketopia
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Join Date: Jul 2015
Location: Warrenton VA
Posts: 1,008
Re: 2006 chevy express 6.0 codes

How many miles on it? Could be due for a tune up. Lean codes could also be from a vac leak at the booster, or an exhaust leak. I'd check for exhaust leaks first.
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