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Old October 19th, 2008, 07:54 PM   #1
clint357
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coolant leak

My 2000 Grand is loosing radiator juice somewhere, but I don't know where. You can smell it under the hood, but I can't see it dripping anywhere. I got some UV dye from napa, but I tested a little bit and it doesn't glow that well under the light. Does anyone know if/where there is some better stuff. I know in college people used to fill empty liquor bottles with water and let a highlighter cartridge sit in there and the liquid would glow really bright with a black light and I was wondering if something like this would work.
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Old October 19th, 2008, 08:16 PM   #2
2kids=nojeepmoney
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if it's a V8, the thermostat is in the lower radiator hose output from the block (lower passenger side) and is very common to leak there. since it's so low it's hard to see, and probably doesn't do it unless pressurized (ie, running down the road and when hot) it will be hard to find.
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Old October 19th, 2008, 08:23 PM   #3
clint357
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It's a 6 with a newer thermostat and housing.
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Old October 19th, 2008, 08:59 PM   #4
xjmichigan
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check the weep hole on the water pump housing.
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