The fuel pump or something back by the passenger side rear tire makes a semi loud buzzing noise while i'm driving and when i turn the car off. am i loosing my fuel pump and how many do i have? should i wait till it goes out or replace it now? i just bought the car and never owned a vw so i'm confused. please help. peter
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If the noise doesn't change when you turn left or right while you are moving than The first thing I would look at is the tire. Check for uneven wear or cupping. The tread should be worn evenly and smoothly all the way around the tire. Something you can try to at least eliminate the tires as the problem is to rotate the tires. If the noise changes, stops, or moves from the front to the rear than you know its the tires.
If the noise still persists after rotating the tires than we will have to think of something else.
WHEEL BEARING USUALLY STARTS MAKING A ROARING TYPE NOISE WHICH USUALLY GETS LOUDER THE FASTER YOU DRIVE, SOMETIMES THEY WILL BE LOOSE , TO CHECK JACK UP THAT WHEEL AND GRAB TOP AND BOTTOM OF TIRE AND SHAKE, IF THERE IS MOVEMENT, TRY TO GET SOMEONE TO ROCK TIRE FOR YPU AND WATCH WHERE AXLE GOES INTO CENTER OF BEARING AND SEE IF AXLE IS MOVING WITH TIRE MOVEMENT AND SPINDLE REMAINS STATIONARY, THEN IT IS BAD BEARING, OR SOMETIMES THERE WILL BE NO MOVEMENT, THEN BLOCK REAR WHEELS AND RUN CAR WITH THAT WHEEL IN AIR AND SEE IF YOU HEAR NOISE, GOOD LUCK.
maybe its a wheel bearing? and when you turn it puts extra weight on it and makes it loud. that would also cause your tire to wobble. jack up that side of the truck and see if the tire is loose. if the lugs are tight and you can move the tire then you need a wheel bearing. its very dangerous to drive with a bad bearing cause it could cause your tire to fall off.