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For MechanicTech Rob Only: Rob...so after I ran the truck in
For MechanicTech Rob Only:Rob...so after I ran the truck in idle for about 20 mins, I again was left with the P0171 error code and P0300 random misfire as well.During this 20 min idling, the Torque ap… read more
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my inlaws have a 2004 gmc yukon xl 4x2 with a 5.3 ...
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Meet the Experts:

GM Tech (Cam)

GM Tech (Cam)

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Don - Mo Lurch

Don - Mo Lurch

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Jerry Newton

Jerry Newton

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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