"Will Honea" <hwj25(remove this)@qwest.net> wrote in message
news:JxX2tWiP5BNp-pn2-mhMKHyKklRct@anon.none.net...
> On Thu, 10 Jun 2004 13:39:39 UTC wranglerjeep1@aol.com (Brian) wrote:
>
> > Ok...here's a question? My jeep has a vac leak somewhere around the
> > firewall. I've checked and looked all over the place but can't find
> > it....and to make things worse you can only hear it when your on the
> > highway (quits when you exit and stop to check lol)and let me tell
> > ya....its a loud one! Stranger yet is sometimes you can see smoke
> > rising from the dash lol. Anybody have an idea?
>
> If you have power brakes, check the vac. fitting and hose. That comes
> straight off the manifold.

On YJs there's a vacuum line running from the manifold to a heating system
flap motor on the pasengers's side. See if it's come off.

 

spray wd 40 around and when you hit the vacumn leak, the engine speed will
surge.
john

"Brian" <wranglerjeep1@aol.com> wrote in message
news:9d6689c2.0406100539.1b95abf6@posting.google.c om...
> Ok...here's a question? My jeep has a vac leak somewhere around the
> firewall. I've checked and looked all over the place but can't find
> it....and to make things worse you can only hear it when your on the
> highway (quits when you exit and stop to check lol)and let me tell
> ya....its a loud one! Stranger yet is sometimes you can see smoke
> rising from the dash lol. Anybody have an idea?
>
> Brian
> 88 YJ
> 4.2 I6

 

spray wd 40 around and when you hit the vacumn leak, the engine speed will
surge.
john

"Brian" <wranglerjeep1@aol.com> wrote in message
news:9d6689c2.0406100539.1b95abf6@posting.google.c om...
> Ok...here's a question? My jeep has a vac leak somewhere around the
> firewall. I've checked and looked all over the place but can't find
> it....and to make things worse you can only hear it when your on the
> highway (quits when you exit and stop to check lol)and let me tell
> ya....its a loud one! Stranger yet is sometimes you can see smoke
> rising from the dash lol. Anybody have an idea?
>
> Brian
> 88 YJ
> 4.2 I6

 

spray wd 40 around and when you hit the vacumn leak, the engine speed will
surge.
john

"Brian" <wranglerjeep1@aol.com> wrote in message
news:9d6689c2.0406100539.1b95abf6@posting.google.c om...
> Ok...here's a question? My jeep has a vac leak somewhere around the
> firewall. I've checked and looked all over the place but can't find
> it....and to make things worse you can only hear it when your on the
> highway (quits when you exit and stop to check lol)and let me tell
> ya....its a loud one! Stranger yet is sometimes you can see smoke
> rising from the dash lol. Anybody have an idea?
>
> Brian
> 88 YJ
> 4.2 I6

 

spray wd 40 around and when you hit the vacumn leak, the engine speed will
surge.
john

"Brian" <wranglerjeep1@aol.com> wrote in message
news:9d6689c2.0406100539.1b95abf6@posting.google.c om...
> Ok...here's a question? My jeep has a vac leak somewhere around the
> firewall. I've checked and looked all over the place but can't find
> it....and to make things worse you can only hear it when your on the
> highway (quits when you exit and stop to check lol)and let me tell
> ya....its a loud one! Stranger yet is sometimes you can see smoke
> rising from the dash lol. Anybody have an idea?
>
> Brian
> 88 YJ
> 4.2 I6