Thread: "SES light" Small emissions leak "code p0442"
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Old 07-20-2015, 08:38 PM   #8
Tech II
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Re: "SES light" Small emissions leak "code p0442"
Well it's a small leak that could be anywhere......at a dealership, they would use their scan tool to seal the system, and with a smoke machine attached, they would pressurize the system with smoke....where you see smoke, you have found the leak....
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