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Results for DTC, tsb
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  • Forum Reply: RE: Fuel cap not venting and creating negative pressure in tank

    Emission controlled vehicles from approximately 1972 to 2015 use mainly non-vented fuel caps. Check your vehicle year’s application and replace the fuel cap. Scan your vehicle for related DTCs , such as EVAP (evaporative emission constrol system) codes. Check for TSBs on your vehicle. Check...