If replacing the thermostat causes overheating either you are not installing it correctly or it is defective. Even with the self bleeder installed you SHOULD initially manually bleed the thermostat housing AND the radiator. 175 is not overheating. In fact the motor is SUPPOSED to run at 180-190. Overheating would be over 220. You can check the thermostat. Stick it in a pot of water with a thermometer and watch it as you heat the water up. You should see it start to open at around the temp stamped on it. If you are getting bubbles in the coolant, that is not overheating, you popped a head gasket (from overheating). This is not what the self-bleeder is for. You will have to replace the head gaskets and maybe have the heads milled. David Teitelbaum vin 10757 --- In dmcnews@xxxxxxxxxxxxxxx, John Podlewski <john_podlewski@xxxx> wrote: > Yes, I have the air bleeder installed from specialT-works great. Shouldn't this prevent any air that may be trapped in the system and shouldn't it be self bleeding? > > Again everything works fine, fans come on when they are supposed to 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/