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Old 09-26-2012, 06:18 PM   #3
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Join Date: Sep 2010
Location: Foster City CA
Posts: 1,092
When you recharge the system, use a can of 134a that includes oil and a dye. After a coupler of weeks, use a black-light flashlight to see if you can find the dye anywhere near the A/C system. If so, you have a leak. If not, check for the dye in the pool of condensation that shows up under the car. This means the evaporator may be leaking.
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