Changed Thermostat now coolant leak - Defender Source
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  #1  
Old January 3rd, 2010, 04:34 PM
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Nick Vogel
1997 D-90 / 2012 LR4
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Changed Thermostat now coolant leak

The truck was overcooling so I changed the thermostat and after determining the fan was working right. After changing the thermostat and gasket, I filled it up the radiator and started the truck. No leaks after up to temp or under a load so I drove it around and check again, no leaks.

Parked the truck in the garage and took a peak an hour or so later and saw coolant on the ground, a couple of cups worth.

Trying to figure out where it came from? I dont see any coolant in the valley and the expansion tank has fluid in it.

Ideas?

Follow-up Post:

Could it bet that I overfilled it and it leaked out the expansion tank?

Valley is dry both in the front and in the back (what I can see).
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  #2  
Old January 3rd, 2010, 08:06 PM
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Charles Galpin
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I think you are right Nick. I'd just keep an eye on it over the next few heat-cool cycles and I expect the leaking will have stopped.
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Old January 3rd, 2010, 09:44 PM
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Trevor Griffiths
85 110, 92 110, 92 RR, 06 LR3
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I've seen a few Rovers that begin to seep from the upper radiator hose at the t-stat housing when the weather gets really cold, but that usually will leave a puddle at the rear of the intake manifold. Oh, and I see you're in Texas. Well, it's a little cold here right now!
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  #4  
Old January 3rd, 2010, 11:09 PM
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Nick Vogel
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It was coolant in the valley. Gave the motor and wash and no more puddles.

Now the water pump is seeping.

If its not one thing, its another!
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