Originally Posted by Jayzer97
Well I'f I don't pump the brake a couple times before starting it will bog down really bad like stalling out .. my foot does go down like almost to the floor till it gets stiff enough to not stall out but it has been working good so far ...but were would I check first as for a Vacuum leak ??
All the hoses in the engine bay. Especially the ones on the valve cover, brake booster and exhaust manifold.
How long has this been going on? How long have you owned the ZJ and what kind of maintenance have you performed up to this point? When my brake started going to the floor it was a bad master cylinder, but never caused stalling issues.
There's a few ways to check for them, but soapy water in a spray bottle works. It will bubble if there is a leak in one of the hoses.