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Home >> Dodge and Ram >> 1998 >> Caravan Base, 2.4 B >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 2.4L >> DTC Test >> Test TC-113B - EVAP Purge Flow Monitor Failure

Test TC-113B - EVAP Purge Flow Monitor Failure

NOTE: Perform TEST TC-113A - EVAP PURGE FLOW MONITOR FAILURE  before proceeding.
  1. Disconnect purge vacuum hose at EVAP canister. See Fig 1. The EVAP canister is located on frame rail, directly below the driver's seat.
    Fig 1: Locating EVAP Canister & Identifying Hoses
    G95E35059
  2. Apply air pressure on purge vacuum hose. If no restriction exists on purge vacuum hose and line, go to next step. If restriction exists on purge vacuum hose and line, repair or replace purge vacuum hose and line as necessary. Perform TEST VER-5A - ROAD TEST FOR OBD-II TROUBLE CODES .
  3. Check for restricted fuel tank vent port on top of EVAP canister. See Figure. This is the vent port that goes to the fuel tank. If fuel tank vent port is restricted, clean fuel tank vent port and retest system. Perform TEST VER-5A - ROAD TEST FOR OBD-II TROUBLE CODES . If fuel tank vent port is not restricted, replace EVAP canister. Perform TEST VER-5A - ROAD TEST FOR OBD-II TROUBLE CODES .
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