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P0457 Diagnostic Trouble Code Discussion for October 2017

Loose Fuel Cap

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Trouble Ticket Help Requests for DTC P0457
Help Request Posted
2007 Dodge Ram 1500 ST 4.7L MIL Lamp on VIN: 1D7HA16P57
P0457: Loose fuel cap. ... keeps setting p0457 loose fuel cap. Gas cap message on where shift indacator is. cleared code and message still there. Smoke tested evap system from purge valve under hood to rear of truck with esim plugged off. No leak now. used active test on scan tool a...
October 25, 2017