I'm Sorry for taking so long to get involved here. I am pkuevor's boyfriend/mechanic.

Initially, we both thought that the noise was emanating from the dash, so my first assumption was that it was the blower. But the noise appears solely as a function of vehicle speed, NOT blower speed, vehicle ...

Guess what...

I have to apologize for seeming illiterate or insane. I am posting from my smart phone and Swype so often drops in the wrong word.

I will pick up a water pump from my FLAPS tomorrow. Don't worry; my FLAPS is not your normal FLAPS.

Thank you so much for the replies.

Are the water pump impellers likely to be plastic?

I would say that it is overheating, although my first imputation of what was happening was that it had a bad temp sender because the temp would rapidly rise, then fall to cold, then go to normal, then high again ...

Yeah, I was thinking about what I said yesterday and realized that a blocked radiator wouldn't deny the cabin heat.

It will have plenty of coolant--until it gets hot. The system definitely has some sure in it, witnessed by how far the expansion tank's level drops after the engine has cooled down ...

Hi,

My name is Jonathan. My girlfriend and I bought her a 1994 850 turbo from a friend. Things started out well, but the engine overheated and cracked the reservoir cap. No problem, I thought, thinking that the broken cap was the cause rather than a result. I replaced the cap, which had to be ...