I have a 95 Quest (same car) Just got thru replacing the KNOCK SENSOR. There is a coolant hose that runs under the Plenum (hope I spelled that right) and feeds into it. Mine was leaking also. It's a hassle to get to (remove Plenum) but it can be done.
Take your time! GOOD LUCK if you haven't already done the job.
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Thursday, December 11th, 2008 AT 1:39 PM