Mike, Thanks for your suggestion but we installed a new mode switch during our visit. We have since been in touch with Mr.Howley and belive we have found the source of his problem. DMC Joe / DeLorean Services / <dmcjoe@xxxx> Web Site: <http://www.deloreanservices.com> ---------- > From: magriese@xxxx > To: dmcnews@xxxxxxxxxxx > Subject: [DML] Re: Vent heat problem > Date: Monday, August 09, 1999 9:20 AM > This sounds like a bad mode switch. The airflow in the ventilation > system is controlled by vacuum actuators. The actuators are > controlled by the mode switch in the dash. There is a portion of > the switch that is sealed with a silicone grease that eventually > dries out and causes erratic operation of the ventilation system. > > Mike Griese > Storage Software Development Manager > IBM Storage Systems Division > Rochester, MN 55901 > Internet: magriese@xxxx > voice: (507)253-1853 > fax: (507)253-2880