a4 taz

how do you know if the bearings are spun. just got my car back from getting the control arms changed and brakes, but now i hear this noise from the engine. it sounds like something rolling in the eginge(like a conutinous hissing noise). it happends when its driving and at idle. need help

4Driver4

Which bearings? Usually you take the engine apart and look at them.

Your bearings aren't spun.

a4 taz

what you think the noise is

turbo510

So the engine noise happened AFTER somebody else had your car for suspension/brake repairs?

a4 taz

yeah

4Driver4

Not enough info to tell.

Front or back of engine?
Noise changes with revs?
Louder cold or warm?
Etc.

ECS Tuning-Audi

More info is definitely need!

A bad cam chain tensioner can sometimes be mistaken for rod knock.

It sounds like a tapping or ticking. Usually gets louder if your car is low on oil.

Jason

a4 taz

recently had an injectore problem just fixed that. the noise is coming from the back part of the engine close to the dashboard. it gets louder when reving and driving

a4 taz

just change oil

a4avant99

I had this problem. I found a small (red or green or?) cap covering a tube mouth that was torn and the tube was sucking air in. I used electric tape to seal the tube mouth.