Check Valve

1985 Subaru GL 4D Sedan, 1.8 5, StandardSECTION Check Valve

By blowing into check valve, ensure there is no air flow from the intake manifold side to the ASV solenoid valve side. Turn valve around. By blowing into check valve, ensure there is air flow from the ASV solenoid side to the intake manifold side. See Fig 1 .

Fig 1: Sectional View of ASV Check Valve
G40366
RENDER: 1.0x

NO RELATED

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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.