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+18 No Check Engine Light But Car Hesitates References . Web several things can trigger your check engine light, but four major issues are almost always directly related to an illuminated check engine light. So, most times, you are likely to fail an emission testing procedure if you don't change and replace them entirely. Danger! Here Are 10 Signs That Your Car Is Going to Die from www.cheatsheet.com Web why does my car hesitate when i accelerate? You still can diagnose engine performance and driveability problems if you know the components or systems that are most likely to cause these common issues: Generally, if there's an issue with your vehicle's exhaust system, you will fail the emissions test.