GMC Sierra Purge Control Valve Issues

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GMC Sierra Purge Control Valve Issues Issues Discussion

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GMC Sierra Purge Control Valve Issues

Purge control valve is the part of EVAP system of GMC Sierra and it works to prevent the emergence of vapors in the fuel tank to escape into the air. These vapors are prevented to escape in the air and they are pumped into the engine during different driving conditions, where they burnt. If the purge valve is not fully closed, they can create problems like rough starting or problems running of used GMC Sierra, when the engine turns over.