Thread: Coolent leak
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Old 12-22-2012, 06:17 AM   #11
JFP in PA
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Join Date: Feb 2005
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Cracked tanks are repair staple on these cars, but as mentioned above, there are diagnostic pathways to determine the leak source. Look under the carpet in the rear trunk for signs of being wet, check the number on your cooling system cap to see if it is an old one, pick the car up and look for where it is coming from. With real hard to find leaks, you can add a cooling system dye that collects at the leak point and fluoresces under UV light, which is very useful in problem cases.

One of the most useful tools any backyard wrench may own is a good cooling system pressured testing system that can pressurize the entire system to check for leaks, as well as test the cooling system caps in a matter of a few min. on any car. You might be surprised how many bad caps we find while doing regular pre-winter maintenance checks on customer cars.
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