Installed new cold air intake on 02 jetta...makes a whistle noise when it starts??

Question

then it will fade away after about 30 seconds but will come back. What could it be?

Answer 1

You got a leak in there somewhere bud.

Answer 2

go back and re-tighten all your hoses an clamps. and don't listen to dr. car guy...he isn't a real doctor. doesn't even play one on tv.

good luck!

Answer 3

Sounds like a vacuum leaks make sure you have tightened all the clamps, and make sure that intake it the right one for your car.

Answer 4

could be that you have a leak, get the stock system back on there asap

Answer 5

Thats just what intakes do.  They suck in air and it causes a whistling noise by spiraling up in the tube to your engine.  Its just like you blowing into a bottle and it whistles up a bit.

Answer 6

Check for any vacuum leaks at all connections from the fresh air  inlet to the engine.