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Message: <blockquote data-quote="scott degroot" data-source="post: 865392" data-attributes="member: 66039">I replace these all the time. Get a lower housing, a water pump bypass hose and also the heater hose that connects to the lower housing. You do not need to remove the intake to do this. Remove the t-stat and then remove the lower housing, unplug the sensors and they will come out with the housing, you just have to wiggle it around a little. The o-rings that seal the 2 sensors into the housing will need to be replaced but you can't get these from Ford unless you buy the whole sensor, just go to your local parts store and pick up 2 o-rings.  Book time for the repair is 2 hours. You will also need a 8 mm swivel socket on a 1/4" drive with at least a 6 inch extension to get the lower housing bolts out. The bolt farthest back in the lower housing will not be able to be removed from the housing due to clearance from the intake but is no big deal. Forgot to add that you need to remove the throttle body also to do this.</blockquote>