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HOMESERVICE MANUALSCHEVROLET2001ASTRO VAN L AWD V6-4.3L VIN WREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSDESCRIPTION AND OPERATIONEMISSION CONTROL SYSTEMSEVAP EMISSION CONTROL SYSTEMEVAP SYSTEM COMPONENTSEVAP PRESSURE/PURGE DIAGNOSTIC STATION
2001 Chevrolet Astro Van L AWD V6-4.3L VIN W

EVAP Pressure/Purge Diagnostic Station

2001 Chevrolet Astro Van L AWD V6-4.3L VIN WSECTION EVAP Pressure/Purge Diagnostic Station

EVAP Pressure/Purge Diagnostic Station:




The EVAP Pressure/Purge Diagnostic Station is used to help locate leaks in the EVAP system. It provides a clean, dry, regulated supply of nitrogen to pressurize the EVAP system. Refer to the directions on the cart for proper operation.

The fuel filler neck adapter is used to adapt the EVAP pressure/purge diagnostic station to the fuel filler neck. Pressurizing the EVAP system at the fuel filler neck allows testing of the filler neck and the fuel fill cap on vehicles with ORVR (Onboard refueling vapor recovery).

The Ultrasonic Leak Detector (J - 41416) is then used to pinpoint the source of the leak.
RENDER: 1.0x

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When to See a Mechanic

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

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