93 Jeep GC Vacuum leak...how do I find it?

[lilmissjaclyn]

I've got a 93 Jeep GC 4.0L inline 6. When I step on the gas with the A/C on, the air only comes out the defrost vents. How do I find where the leak is and fix it?

Thanks in advance,
Jaclyn

[SteveB05]

The good ol' boys way was to use a small, unlight propane torch, move it around the vac lines and listen for the RPMs to raise. Some of them found that eyebrows do burn. It is much safer to do the same thing with a squirt bottle of water. Use a small stream and work your way around listening for an RPM change.

[esfd455]

Go to this link and see the fix for the defrost problem on the jeeps. I fixed mine and it works great.

http://home.sc.rr.com/janet/TSB/24-01-96A.htm



FF/EMT Gary
New York