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Coolant Leak 700 1986

posted by  someone claiming to be scn760 on  Wed Nov 21 13:25 CST 2001 [RELATED]

I have a 1986 760 Turbo, B230FT engine. A few days ago, I noticed smoke coming from the dashboard. Two days later, as I was driving, when I revved the engine slightly, smoke would shoot out of the air cond./heater vents. When I turned on the heat, even more smoke came out of the vents.

I drove home, and it stopped smoking for a few minutes, then it started smoking some more. As I pulled into my driveway, I noticed some fluid on my passenger side mats. It was dripping from behind the glove box somewhere and trickling down.

When I parked the car, I saw fluid leaking from the engine (passenger side). I looked at my coolant reservoir, and it was empty, the rubber hose going into the engine from the radiator was empty (I squeezed it, and didn't hear the normal gushing sound of coolant). I seem to have lost all my coolant somehow.

Though I haven't started the engine after this happened, I don't think it is seized- the coolant light didn't go on, and the temp. gauge (which I always had kept an eye on) was at the 11:00 position.

I have heard that it is a faulty heater temperature control valve. Does anybody think the heater core needs to be replaced too? I will have the temp. control valve changed, but I'm not sure if the heater core is bad. I know that the heat worked fine up to this incident, but the vents did blow a foul smelling odor (coolant/antifreeze?) and they left a residue on my windshield that i had to scrub off with a towel.

Thanks for your input.

Pat





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