catalyke converter or transmission
3 Answers
A buzzing noise could be an exhaust heatshield, a rattle could be the catalytic converter. I zipping noise could be the transmission. Try to get Nissan to pay for a new transmission and then dump the car.
irineltablan2018 answered 3 years ago
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Does not sound like a converter issue. They are usually accompanied by a distinct loss of power. I lean towards a trans issue.