1978 Plymouth Arrow Base, Automatic TransFACTORY OEM SERVICE PROCEDURE

Evaporative Emissions System: Description

The system consists of a separator tank, a two-way valve, a fuel check valve, a purge control valve, a charcoal canister, sealed filler cap, and tubes and hoses to connect the system. These components are employed to prevent the escape of fuel vapors into the atmosphere.

Fig 1: Fuel Evaporation System
G09313040Courtesy of CHRYSLER GROUP, LLC
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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