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Old 11-12-2019, 08:48 PM   #1
CharlieCh
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Engine surges when driving

Hello,
I have a 2016 4runner SR5 v6. It has 17k miles on it. Recently I found that when I drive at a constant speed the rpm surges from 1500 up to 3000 for no reason and then goes back to normal after several seconds. I noticed this last saturday, usually when I drive at 40-50 mph.
Any opinion on this is appreciated!
Thank you!
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Old 11-14-2019, 07:45 PM   #2
fourwd1
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Re: Engine surges when driving

I'd start by checking to see if any OBD-II error codes have been set.
Even if the CEL light isn't on a code may have been set that may help diagnose your problem.
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