Order the otterstadt switch AND the seal from your favorite Delorean parts vender. Also if you don't have it get the clip that holds the switch in. (If you don't want to spend the big bucks for the clip a straptie will do in a pinch.) To replace it just work fast with a pan underneath to catch the anti-freeze so you can put it back in. Bleed the system of air when done. DO NOT use silicone on the seal. I learned the hard way, it attacks the seal and causes it to fail. The otterstadt that PJ Grady sells is made to come on a little sooner and is supposed to work well with the Fanzilla which I highly recommend. Although you can short the connection to the otterstadt switch and run the fans full time you really should fix it right but if you are running the A/C then the fans are running full time already. Check the fan circuit breaker to see if it has been upgraded too. Go over all of the connections as this circuit is running at about 35 amps which is a lot especially if run continuously! David Teitelbaum vin 10757 --- In dmcnews@xxxx, Sacha Prins <sacha@xxxx> wrote: > Hi, > > A week or so ago I reported some overheating problems with my new > DeLorean. My conclusion then was that the waterpump or thermostat was > broke. > Today as a test I drove the car with the heating on full blast because > someone told me that if the engine overheats, and the heater stil works > the waterpump is ok and the thermostat is probably broke.