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"check coolant level" false message, after car wash

859 Views 5 Replies 4 Participants Last post by  Submariner409
lol. I used to top it off every time I got this message... but the level kept getting higher and higher!

So I finally saw a correlation. Every time I go get a carwash... the message pops up.

I'm not sure how the sensor is set up, perhaps it goes off when shorted to ground, for example. But when something gets wet in there, it goes off (suppose it shorts to ground). The question is where is this happening?

The connector wires disappear into the engine bay, so I have no idea where the wires are shorting in the presence of water.

Luckily the message goes away when it dries up--no need to keep topping it off! lol
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That connector is down near the bottom of the tank. Entirely possible that water is spraying up to the tank from the "underbody wash" feature and grounding out the connector. If you can, pull the connector and shoot it out with electronic cleaner. Radio Shack.
I was thinking that to Sub, but dismissed it because I figured they would not need/have under body wash down there (no salty roads). Maybe I'm wrong.
it's extra for the underbody wash, but there is some pretty intense pressure on the wheel wells. The plug itself felt dry, but cleaning it is a great idea that couldn't hurt a thing.
That connector is down near the bottom of the tank. Entirely possible that water is spraying up to the tank from the "underbody wash" feature and grounding out the connector. If you can, pull the connector and shoot it out with electronic cleaner. Radio Shack.
No need to unplug it. Just drenching the whole thing with
90%-99% Isopropyl Alcohol will suck all the water out of every little crevice and clean the electrical contact too, for pennies on the $. Dries in seconds. Radio Shack probly wants the big bucks for the same substance with a brand name and an aerosol can. (God, I'm a cheapskate!)
Kicker is that these connectors use a silicone seal ring or oval in the body of the connector. If you don't open the connector, you don't expose the pins/sockets to the cleaner. Electronic contact cleaner is cheap for what it does........If you want to go on the cheap, as AMENCADDY suggests, pull the connector and douche it down with isopropyl and blow it dry. Allee samee.
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