how do you smoke test the system for leaks?

[irisheyeman]

Hey, I am having a really loud squealing noise when my car is cold. It seems to go away when the car warms up. I took it into the local shop yesterday and they said it was vacuum/ intake related. They said they would have to do a leak test and to expect $500.00 to $800.00 for repair! I need to know how to smoke test the system for leaks myself or see if anyone else has had the same issue.

Thanks

[pyromaniac941]

first before you jump to and of that. inspect all of your belts

[marti5]

Sounds like a belt to me to, as only does it when cold,if it was vaccum it would do it all the time,try new belts 1st.

[irisheyeman]

if not the belts what should I check next?

It doesn't get worse when I step on the gas. It also sounds kinda like a whistling noise.

[marti5]

leak on the intake hose or your air box, get someone to rev it whilst you listen for it.