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Missing / Surging

canyon04wisc

By canyon04wisc
September 6, 2011 in Gen III & Gen IV V8 Engines (LS-Based)

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canyon04wisc

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canyon04wisc

Posted September 6, 2011

Posted September 6, 2011

04 gmc canyon 110k having hesitation at different speeds (40ish mph 60 @72mph) with tach surges at times of hesitation. no code alerts,extreme decrease in gas millage.plugs have been changed today and still occurs.visualof coil boots looks fine. also 800mi from home at this post

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