What's easiest way to find vacuum leak.

[Jcon]

I'm not a fan of spraying carb cleaner into a hot engine bay...what else can I use to look for leaks on my 3.6.

Jeff C

[dean]

Water, propane. Carb cleaner is the easiest. IMO
Dean

[toolman]

The BEST way is to use a "smoke machine". OTC and Vacutech make one. They are very expensive, around $1000, but I used one and found a vacuum leak on just about everything I own in seconds.

[911mot]

If it's 'hissing' put a length of pipe to your ear and fish around with the other end near where you suspect it is leaking. You will hear when you've found it.

[RoninLB]

I have an electronic beeper vac and exhaust detector. I paid about $150 from Snap-On. I believe OTC sells the same unit. I guess "toolman" would know more about it?

[Jcon]

Ronin

Do you like it?

Jeff C

[RoninLB]

Originally posted by Jcon

Ronin
Do you like it?

isn't there a spray for detecting an intake leak?

[real550A]

Propane bottle with a hose on it. Turn on the gas and move the hose tip around all your fittings. Engine will speed up noticeably when leak is present.

[RoninLB]

Originally posted by Jcon
Ronin

Do you like it?

I've lent it to shops that have spent days trying to find a vac leak.. usually 15min-1hr and it's found with this unit.