Question about 2005 Chevrolet Equinox
Code p0455 is a large EVAP leak.if the truck was running when you were filling it with gas, this can also cause this code.
Another common cause is a faulty / sticking EVAP vent solenoid / valve. If the vent valve does not operate, the system will not seal when it needs to, thus causing a large leak. A simple test with a test light and a scanner that can turn the vent solenoid on and off would need to be done to test the valve.
Posted on Dec 05, 2010
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Posted on Jan 02, 2017
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