I have a 2011 Mazda CX-9 that sat outside during some extensive rains. I
spent the better part of Friday cleaning the carpets (there was some
mildew inside, from a leak in the weatherstripping around the door). I
left a dehumidifer in the back to help dry things out.

Saturday I drove it for about 40 miles. Ran like a charm.

Saturday night I went to the movies, came back and got a check engine
light. I put my OBD2 reader on and got a code for an emission systems
leak (very tiny leak) - the reader's words, not mine.

Started it again and got the traction light on, 4wd on, parking brake
on, oil pressure light and TPMS warnings.

I figured it had to be an electrical glitch and limped home on a side
road.

Fingers crossed, Google tells me that there's an electronic box called a
BCM (body control monitor) that sometimes gets moisture. Replacements
are around $100 to $150 online, so it could be worse. First thing will
be to dry the existing box out, check for corrosion and water intrusion.

Overall, it's been a great car. I bought it for $1000 under blue book,
and it's fun to drive. It seats 7 people nicely, and with the seats
folded it's an awesome furniture hauler. I put Cooper Endeavour M/S
tires on it, and it handles like a dream in the snow. at 140K miles and
12 years old, I'm expecting some things to go wrong.




... "He who is without oil, shall cast the first rod."-Compressions 8.7:1.
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