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post #1 of 9 (permalink) Old 02-17-2009 Thread Starter
 
Join Date: Feb 2009
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overflow bottle and overheating? help

ok its got me completley stumped!

i just brought a 1998 s80 t6 and it keeps running out of coolant.

I fixed the leek in the heater core thinking that was the problem, but it wasent and now it just keeps pushing all the water into the overflow bottle then out the over flow hose onto the road? i have no idea why?

the temp isnt going over half way so its not overheating, but it keeps saying check coolant and when i do its empty?

any help would be awsome

cheers
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post #2 of 9 (permalink) Old 02-17-2009
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Welcome to the forum! First check the oil dipstick. See if it looks like pure oil. If it looks milky you could have a leak which is putting coolant in the oil. From what you have described I doubt this is the issue. But check to make sure you eliminate this. The other common thing could be a bad thermostat. Let us know what you find and good luck!



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post #3 of 9 (permalink) Old 02-17-2009 Thread Starter
 
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i just had it in at the radiator place, and the top hose off the overflow bottle doesent go anywhere, like its been disconected and a bolt has been put in the end of it (not the one that goes to the radiator, the other one)

can anyone tell me where this is spose to go? as they aid conecting it back up should fix the problem
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post #4 of 9 (permalink) Old 02-17-2009
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Is it possible to take a couple of pics? The top hose off an overflow bottle typically doesn't go anywhere, it is to allow antifreeze to purge from the overflow tank. Maybe pics would be helpful.



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post #5 of 9 (permalink) Old 02-17-2009 Thread Starter
 
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its not a broken hose or anything, it just seems to boil over and just dump all the water? i will take pics later and post them up

oh and it was all bled properly when i put the coolant back in
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post #6 of 9 (permalink) Old 02-18-2009
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Do you know if the thermostat is operating properly? If you take the cap off with a cold engine, start the car you should see the antifreeze not moving, then when the car warms up the thermostat will open up and you will see the antifreeze moving.



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post #7 of 9 (permalink) Old 03-01-2009
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the top hose from the overflow bottle goes to a small port on the Drivers side top side of the radiator. if it has a bolt in it someone has messed with the car. the radiator needs to be dropped down from under the car and re-attach the hose to this port. its a return line to the bottle.
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post #8 of 9 (permalink) Old 04-12-2009
 
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My car is having the same problem. Has anyone found the fix yet?
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post #9 of 9 (permalink) Old 04-14-2009
 
Join Date: Mar 2009
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The normal order to ck. is; leaks,elect. fan, coolant sensor, water flow(cks. pump,t-stat ) leaks can cause head warpage. High press. or water vapor at the exhaust(after warmup) can indicate a warped cyl. head....hope this is useful to you...
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