on the forward passenger side of the engine bay, more or less. Find the 1/8th inch hose coming out of the driver side engine bay wall. Follow it to the passenger side; it connects to the valve. Jim 1537 On Sun, 17 Aug 2003 11:13:40 -0400 "michael townsley" <townfour@xxxx> writes: > Where is the heater core shut off valve? > > Michael W. Townsley > # 17043 > townfour@xxxx > > > -----Original Message----- > From: content22207 [mailto:brobertson@xxxx] > Sent: Saturday, August 16, 2003 10:17 PM > To: dmcnews@xxxxxxxxxxxxxxx > Subject: [DML] Re: Vacuum line question > > Mechanic hooked up wrong. He's running vacuum backwards through mode > switch. > > Line operates heater core shut off valve. Is only active in Max A/C > mode. Runs from passenger intake rail (one device of many on big > 3/8" > line), through mode switch, under console in hard plastic line, out > driver's pontoon, to heater core shut off valve. > > Bill Robertson > #5939 > > >--- In dmcnews@xxxxxxxxxxxxxxx, "aaron_t_graham" > <aaron_t_graham@xxxx> wrote: > > There's a lone vacuum line that comes into the engine from the > side of > > the engine compartment -- toward the back, on the left side. It's > > quite lonely back in that part of the engine compartment, so it's > easy > > to see which line I'm talking about. > > > > If I have this line disconnected, everything still seems to work > just > > fine. Idle is good, acceleration is good, and all climate > controls > > work just like they should. My mechanic hooked it up to where he > > thought it should be, and when he did that, lots of hissing noises > > started coming from the A/C panel mode switch area. > > > > So it comes down to this: when that line is hooked up, everything > > works okay and the A/C mode switch hisses. When that line isn't > > hooked up, everything works okay and there is no hissing. > > > > Any ideas on this one? > > > > Aaron > > #1506 > > > > To address comments privately to the moderating team, please > address: > moderators@xxxx > > For more info on the list, tech articles, cars for sale see > www.dmcnews.com > > To search the archives or view files, log in at > http://groups.yahoo.com/group/dmcnews > > Your use of Yahoo! Groups is subject to > http://docs.yahoo.com/info/terms/ > > > > > > To address comments privately to the moderating team, please > address: > moderators@xxxx > > For more info on the list, tech articles, cars for sale see > www.dmcnews.com > > To search the archives or view files, log in at > http://groups.yahoo.com/group/dmcnews > > Your use of Yahoo! Groups is subject to > http://docs.yahoo.com/info/terms/ > > > ________________________________________________________________ The best thing to hit the internet in years - Juno SpeedBand! Surf the web up to FIVE TIMES FASTER! Only $14.95/ month - visit www.juno.com to sign up today!