Ok guys I need help. My 1994 940 w/turbo started puking coolant out of the upper left side of the radiator(standing in front of the car looking into the engine). It is comming out of a 3/4" hole with a rubber grommet in it. Its above where the trans cooler lines go into the radiator. I started the engine and started filling the coolant reservoir and when it approached the max level water started puking out this hole and it emptied the reservoir. Whats up with this rubber lined hole? Is it supposed to be plugged with something?

thanks
JJ

Ok figured this one out! Hole in radiator does require a plug unless you have an aux cooling fan, in which case a temp sensor would be plugged into this hole. The parts guy told me he thought all 940's with turbos had the aux fan. Well mine doesn't. Purchased the plug and as an after thought bought the rubber bushing that the plug goes into. Good thing because the plug was a loose fit in the old bushing. Removed old bushing and it was in sad shape, would never had held the plug, which is just pressed into the bushing. After installing the plug and bushing I secured the plug by installing a nylon zip tie over the plug and aroud the radiator top mount. I would recommend everyone check how secure this plug or sensor is because when it blows out most of the coolant goes with it. I was luckey because it happened to me in front of my house.

JJ

Coolant temperature sensor goes there: look for it. You need a new rubber plug.

So is there supposed to be a sensor there or a plug. You said I need a new plug? If there is a sensor does anyone have a picture, I saw no signs of a sensor or wires or connector in that area. Could it have got tangled in the pulleys and been torn off?

Thanks
JJ