Quote:
Originally Posted by bglz42
I am still fighting a similar issue. Mine (original tank) holds vacuum, but not pressure. Very slow leakdown, when pressured to 19psi, it will lose about a pound after two hours. Still have not found where it is leaking. Can hear it after the car is hot, but can not find it. Have soaked it down with soapy water, still looking!
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Go at it scientifically; buy some Uview coolant dye (get the correct type for your color coolant) and add it to the system. Run the car for a day to two, then park it in a dark garage and have a look around using a UV light (Uview also makes an inexpensive UV light flashlight). When you shine the UV light on the leak source, it will light up brightly, showing you exactly where it is leaking.
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