Purge Solenoid Valve

1986 Chevrolet Cavalier RS, 2D Hatchback, 2.8 W, AutomaticSECTION Purge Solenoid Valve

Purge solenoid valve is controlled by Electronic Control Module (ECM). When energized, purge solenoid valve turns off causing vapors to be drawn from canister through restrictions. When de-energized, valve opens, by-passing restriction and allowing high purge.

For high purge to occur, following conditions must be met: Fuel control system must be operating in closed loop, time of 175 seconds must pass after starting engine, and vehicle must be above 20 MPH (automatic transmission) or above 1300 RPM (manual transmission).

Fig 1: Evaporation Control System (2.8L)
G13421
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.