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Old 02-21-2012, 04:07 PM
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Coolant leak found?

Been seeing some antifreeze on the gound up front and had a hard time finding it last weekend i snugged all the hose clamps on the cooler hoses and finally traced the leak to the upper rad hose where it attaches to the motor funny thing is it dont leak when hot just when it cools down! Anyone had problems with that hose before i think it is a O-ring seal with the clip that holds it on?
Chris
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Old 02-22-2012, 10:13 AM
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Yes that is a common problem. There is an updated hose that has dual o rings.
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Old 02-22-2012, 06:32 PM
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yeah that is extremely common. the lower rad hose connection directly below it will leak too.

That hose isn't too hard to change (only covered under 3/36) and while you're in there it's never a bad idea to look at your thermostats if you're up for the challenge
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Old 02-22-2012, 07:46 PM
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So i guess i should get both upper and lower rad hoses while i am at it? And how mant T-stats are there? the T-stat located top side hose motor end?
Chris
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Old 02-23-2012, 05:44 AM
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There are two thermostats.
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Old 02-23-2012, 03:50 PM
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So i guess being i am creeping up on 90K i will be changing the T-stats with the hoses just have to plan a Saturday to get it done! What anti-freeze should be used and how much will it take when empty?
Chris
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Old 02-23-2012, 04:40 PM
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If you drain the rad until it stops you'll get about 4 gallons out. I would plan on having atleast 3 gallons of coolant and 3 gallons of distilled water. The coolant is Motorcraft Premium Gold Coolant

The t-stats are a little tricky. you will need to remove the lowest vertical EGR cooler clamp and the bracket that is under it. The bracket is held to the block by one 13mm bolt that you can't see, that bolt will be tight (I've broken a socket on it before). Once the clamp and bracket are out you can access the four 8mm housing bolts, have a magnet tool handy to grab them. The black bracket that holds the housing down will need to be wiggled out first before the housing. Once the housing is out the t-stats will need to be depressed slightly and twisted out, it's not too hard, just awkward.

It's a safe bet that there will be some deterioration of the t-stat seals. Almost every set I pull has a tear or rip somewhere on it. Some just fall apart upon removal.
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Old 02-23-2012, 07:57 PM
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I figured it will be tight and require some cussing! but i'm sure i have done worse a water pump on my 96' SHO was no picnic!
thanks!
Chris
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