Why is my sentra revving up and down at high speed
i have sentra 2014 1.6cc engine, the issue is that it has high rpm at the highway around 3100rpm at speed of 70 miles !!!
some time it go down to 2500rpm at the same speed !!
its not fluctuate in rpm it just remains on rpm rating mintion above and I don’t know the reason!
did any one has the same issue ?
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