EVAP System, Checking For Leaks

Observe all safety precautions: SAFETY PRECAUTIONS

View clean working conditions: CLEAN WORKING CONDITIONS

Perform a preliminary check to verify the condition: PRELIMINARY CHECK .

Special tools and workshop equipment required

NOTE:

A connection to access the EVAP system can be found in the EVAP hose just below the EVAP purge solenoid.

Replace seals and gaskets when performing repair work.

Secure all hose connections using hose clamps appropriate for the model type.

Leak checking

-- Using a Smoke tester, check the Evaporative Emission (EVAP) system for leaks.

NOTE:

Always follow the manufacturers directions for the proper installation and operation of the smoke tester being used.

If a leak is detected:

-- Check the fuel filler cap seal for damage and for proper installation. Replace if necessary.

-- Check all hose connections of the EVAP system and replace or repair any leaking lines.

-- Check all hose connections of the Fuel Supply system and replace or repair any leaking lines.

-- Remove the rear seat bench. Refer to the Repair information.

-- Remove the floor cover seal.

-- Inspect the seal under the Fuel Delivery Unit (fuel pump) locking flange for proper sealing. Also check the fuel line connections.

-- Repair or replace any damaged component.

If no leaks are found in the EVAP or Fuel Supply System:

-- Erase the DTC memory if a code was set. Refer to DIAGNOSTIC MODE 04 - ERASE DTC MEMORY .

-- Perform a road test to verify repair.

Generate readiness code. Refer to READINESS CODE .