I think you are right about the 220 degrees not being good. With some cars there is a sensor in the bottom of the radiator that cuts on the fan if water is in the radiator. Some people insert a paper clip into the contacts
of the plug so the fan comes on when the temp is hot. Some people wire the fan direct to the ignition with a manual overide switch so the fan can be cut off when they don't need it.
Originally Posted by
redcoats1976
new water pump/timing belt within a year and a half,about 10,000 miles on them now.i believe the fan is the answer.when temp reads 220,its still not on.no leaks in the bottle.is the fan controlled by the computer or is there a temp sensor in the block that turns it on? im thinking running 220 at stoplights wont be good in the long term.