Car rumbles and drops rpms when stopped on occasions - Lexus IS Forum
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post #1 of 1 (permalink) Old 04-08-2019, 07:13 AM Thread Starter
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Car rumbles and drops rpms when stopped on occasions

There was this weird shake when I stopped rpms dropped felt like car turned off. This happened after I turned off eco mode I had on for awhile. Possibly carbon buildup?? 2014 is250awd 55k on it

Anyone use fuel additives/fuel injector cleaners for carbon buildup or a preventative..Any recommendations.

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