4000 rpm/80mph engine loud noises y? on 1999 Volkswagen Jetta

engine loud noises and when im on the hway with 80mph my engine does 4000 spins/min y?

1 answer
Locating and diagnosing the cause of noises are difficult, trying to figure out what is wrong without seeing and hearing the problem first hand is near impossible. I would try to schedule an appointment at a repair shop and insist that you have someone go on a test drive with you so you can have them experience the noise.