I just discovered an un-connected brown 2-way plug in the front left of my engine bay (US 1995 XJR). Where should this connect to? Did my mechanic unplug something by mistake?
The plug is marked with AMP 346304, is a 2-way junior power timer, and has a red and black wire, or maybe orange and black).
I would appreciate any input!
Thanks!
Photos attached
I think this is a normally open switch. So disconnecting it and having adequate coolant levels are the same. The switch will make on low coolant level.
ah ok, that makes sense. I also found this attached piece laying around in the engine bay: it seems to be the coolant level sensor, and fits onto the brown plug. So maybe the mechanic got tired of always seeing the Low Coolant warning light on and just took out the sensor and unplugged the cable fro the sensor?
That would make sense. That’s the coolant level switch. Hopefully they didn’t do something to the hole this is supposed to go in to. From casually searching there seem to be relatively inexpensive replacements, considering the alternative of not having coolant and not knowing it.
It goes into the bottom of the expansion tank. I think you need to unbolt the tank to get it in. Maybe there mechanic forgot it and was to lazy to unbolt the tank.