Multifunction Filling with Antifreeze

[Christopher Ritchie]

don henry wrote:

my multifunction sensor on my 200q filled the protective boot
with antifreeze.  cannot figure out how it filled up.  no
visible leaks
anywhere.  after draining and drying my coolant warning light in
the autocheck no longer flashes constantly.

just do not know how this could fill with antifreeze.  could it
be
leaking through the sensor?  anyone experience this?


This has happened to 3 of mine.  The old (unknown) one and 2 new ones.  Some 
may have leaked out around the threads, but I think some came through the 
unit itself.  It is exacerbated by the newer phosphate free antifreeze that 
seems to leave colorful deposits when it dries.  (You are using phosphate 
free antifreeze, aren't you?)  It probably looks worse than it is.  Bright 
orange deposits all over the place.  I also had liquid antifreeze collecting 
in the boot itself.  The connection then was continually immersed.  That 
can't be good.  I pealed the boot back, and left the connector exposed.  The 
connection shouldn'tr need protection, and certainly not something that 
collects contaminants.  On my last one, I smeared a bunch of dielectric 
grease on the connector before I hooked it up.
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