A pressure sensor would not be useful. Under normal conditions the pressure ranges from below atmospheric to as high as 15 PSI. The more useful idea is a low coolant level sensor as in most newer cars. Another possability would be an overtemp light similar to the light for the low oil pressure. That would get your attention and then you would look at the gauges to see what was going on. On most complicated equipment there is a "Master Warning Light". It goes on when there is a problem to warn the operator to look at some out-of-spec parameter. You could hook it up to the same light as the oil pressure light and relabel it to make it a more general warning. At least the wiring would be easy! It could go into the other cylinder head and tap into the wire going to the oil pressure sensor on the left rear. The level sensor is a little more complicated to install and wire up. BTW if you did experience a sudden drop in coolant pressure you would know! There would be a big white cloud shooting out of the car!!!!! David Teitelbaum vin 10757 --- In dmcnews@xxxxxxxxxxxxxxx, Peter Lucas <lucas@...> wrote: > > I've considered putting a pressure sensor in the cooling loop. This > would be very easy and, as Tom suggests, a sudden drop in coolant > To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx 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 Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/