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Old 04-10-2007, 12:01 PM   #1 (permalink)
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6 months ago I filled my coolant bottle to the top of the cold full range area while my car was cold from sitting all night.

Now, I went and checked it last night. The level is at the lower half of the cold full range. It's dropped about 3-4 inches in 6 months.

This seems to be too much coolant usage to me.

The only thing I can think of that might cause this, is that the past 2 months have been warm, around 100F every other day.

Does this seem like a lot of coolant usage? And if so, what might I check to pinpoint the problem?

//EDIT\\

One other good thing to mention is this. When I replaced the coolant, I was unable to find the original orange crap that was in it, so I went looking around and eventually found a "mix all" solution that specifically stated it would mix with ANY color coolant, in Fords year 1999 +.
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Old 04-10-2007, 12:16 PM   #2 (permalink)
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could have a leak in one of the hoses or the radiator. or you could have a hairline crack in the coolant tank if the tank hasn't been replaced yet, as they are prone to cracking. did u look under the car to see if there was any sign of a leak??
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Old 04-10-2007, 12:29 PM   #3 (permalink)
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Did that too. No leaks anywhere. Checked the sidewalls and plastic pieces around the coolant tank and all hoses, etc... no signs of a leak.

Smelled for coolant and all that too, nothing.

I don't know, maybe I am just using a lot because of the heat? I mean 3-4 inches loss seems excessive to me.
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Old 04-10-2007, 01:24 PM   #4 (permalink)
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Any loss is no good. If you are loosing coolant you are getting air in the system.
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Old 04-10-2007, 03:00 PM   #5 (permalink)
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If your car is the 2005 Taurus with vulcan engine noted, you filled the reservoir too full. The level is now about correct and should stay where it is.

The coolant bottle is not an overflow it is the expansion tank for the system. When the coolant expands it has to have a place to go and that volume at the top of the tank is all there is. When you filled the tank too full the excess was pushed out the pressure cap to an overflow hose and down to the ground.

Hope this helps.
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Old 04-10-2007, 03:14 PM   #6 (permalink)
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Ford recommends especially with the Vulcan to completely fill the expansion tank. This is in some TSB and listed here on the site somewhere.
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Old 04-10-2007, 04:56 PM   #7 (permalink)
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yea its been mentioned here several times. there was a tsb to keep it full
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Old 04-10-2007, 05:56 PM   #8 (permalink)
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So...abuh?
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Old 04-11-2007, 08:27 PM   #9 (permalink)
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Quote:
Ford recommends especially with the Vulcan to completely fill the expansion tank. This is in some TSB and listed here on the site somewhere.
[/b]
Well, I checked the Wiki - nothing - checked the 26 maintenance items - nothing - checked for "coolant level" in the maintenance/repair (19 pages) - nothing (although there were several statements of the TSB existance) - and checked the Ford site for a TSB on the cooling system expansion tank level - nothing.

My Taurus owner's guide says "the engine coolant should be at the cold fill level or within the cold fill range as listed on the engine coolant reservoir". I would interpret this as the coolant full level, just as the engine oil is measured and the other fluid levels. If you exceed these fluid levels bad things will happen. In the case of the coolant, it will overflow to the ground and the cold level will be corrected automatically. Some years ago I tried adding coolant toward the top of the cold fill range and watched helplessly as the coolant overflowed when hot. I think Ford knows this better than I so I am curious as to where I could have gone wrong.

Can someone find this elusive TSB so that we all can better understand the cooling system?
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Old 04-11-2007, 08:57 PM   #10 (permalink)
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I just fill it all the way up...it pukes out whatever it doesn't want until it reaches a level it likes.
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