Hey guys, I have a small vacuum leak and know the general location of it. However, I can't seem to pin point it. Is there some kind of a die kit that I can use that would show me the location of the leak?

 

where is the general location?

 

Around the iacv and valve cover gasket.

 

You can't really dye a vacuum leak since it's just negative pressure, not something like an oil leak where's there's actually liquid to dye.

For something like a positive pressure leak you can spray soapy water and watch to see where it bubbles up, but...not sure for vacuum.

 

isnt the point of vacuum to suck thus I doubt any bubbles will form.

 

That's why I said it was for positive pressure leakage, not vacuum.

 

you can watch you engine suck in the soapy water, not suggested.

 

So anyone who really knows how to find a leak? I am going to try some soapy water and pressurize the system without turning the motor.

 

i would guess if you try the soapy method but take the brake booster line off the booster and stick an air hose in it it might bubble, just might take a little bit to build vacuum and only will if the engine is in the right place.

 

I am going to get a mytivac (sp?) and use it to pressurize the system.

 

Try spraying carb cleaner in the vicinity. Don't laugh, it will work!
Don't ask me what to look for, you'll know it when you see it!

 

Carb cleaner or TB cleaner etc. It does work, you'll hear the engine change as it sucks it in - voila you found the leak location.

 

I did use it, thats how I know the general location, I just cant pinpoint it.

 

Just keep spraying (make sure you work in a well ventillated area) you'll find it!!

 

Yeah man, I am going to try and rent a mityvac and then spray soapy water around.