Scott, and others. 1st I would like to thanks all you who made comments about my post. Look like I got everyone all stirred up and in a constructive way, that and the comments is what makes new products. If yall,(That's Texas for you all) remember several months back about the hot start relay, boy did that get everyone thinking. The thing I told everyone was, when your stranded in the desert and can't get the car started, It would be nice to have a hot start relay in the tool box for the emergency. Normally you can even find the acuumulator, much less any one who can find it or fix it. I also get calls from all over the country about problems people are having or not having. The issue had come to me several times about the fan circuit and the way it was wired. Knowing that most people can't rewire the car to retro fit something new, or drilling and tapping a hold to install a new sensor,the mechanical switch was thought of. The reason for it was, you have everything turned on, and your driving long distance at night and the battery isn't charging because you still have the old alternator. So to prevent the no starting when you kill the engine, Just cut off the fans when not needed to conserve power. Watch your charging gauge go up when the fans are not running. As you most know, they are the largest robber of power in the car. Yes, I even forget my key's, so it's not for everyone, or the mentally challenged, or the weak at heart, but in case of emergency, I think people should know it can be done and the car will do fine IF everything is in order. Mostly the radiator isn't stopped up. The otterstat only turnes the fans on when the car coolant system heats it up to trip the switch. In cooler weather, sometimes my fans never come on. But, if you turn on the air conditioner, for what ever reason, they come on untill the low pressure sensor switch turnes off the compressor. Only if the sensor switch is bad or the car has been rewired will the fans stay on all the time. If you can read a circuit diagram the placement of the wire that energizes the fan relay is after the low pressure switch. To sum up, air flow about 35 miles per hour and up will render the fans drawing of air usless. Yes they will still be turning some due to air flow, but there will be no current or voltage going thru the brushes which will help deteriorate them faster. But, the main reason was to kill off the fans when not needed if your system isn't charging. Thanks againg for all the comments, and I am looking into a air flow device that is easy to fit on the car for any one. Please also remember, there are 1100 + members of this group but 6000 average cars on the street, and of the 1100, more than likley there is less than 200 to 300 active and even less vocal. Thanks again, Sometimes I feel like Doc on BTTF. John Hervey http://www.specialtauto.com/ --- In dmcnews@xxxx, "Scott Mueller" <scott.a.mueller@xxxx> wrote: > John, > Good point about the fans. How about putting a speed sensor in the circuit. > That way the fans will still be automatic and you will not have to worry > about them not coming on when needed. > > Scott Mueller > DMCNEWS 002981 > DOA 5031 > > -----Original Message----- > From: dherv10@xxxx [mailto:dherv10@xxxx] > Sent: Thursday, July 05, 2001 11:42 PM > To: dmcnews@xxxx > Subject: [DML] Heat test > > >