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stumbles on 1996 GMC Jimmy

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
stumbles on acceleration 1996 gmc jimmy 3.3
(1) Answer
Any Check Engine Light or Service Engine Soon Light on? If so, have your vehicle scanned for codes. See this article http://repairpal.com/check-engine-light
Good Luck!