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Engine Emission Control > < Engine Emission Control - 2.3L Duratec-HE (MI4)

S-MAX.Galaxy 2006.5 (03.2006-)

Engine Emission Control - 2.5L Duratec (VI5) - Engine Emission Control S-MAX/Galaxy 2006.5 (03/2006-)
Diagnosis and Testing

Inspection and Verification

  1. Verify the customer concern.
  1. Visually inspect for obvious signs of mechanical damage.

Visual Inspection Chart

Mechanical Electrical
  • Hose(s)/hose joints
  • Gasket(s)
  • Positive crankcase ventilation (PCV) valve
  • PCV crankcase vent oil separator
  • Turbocharger
  • Electrical connector(s)
  • Wiring harness
  • Fuse(s)
  • Relay
  • Powertain control module (PCM)
  1. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
  1. If the cause is not visually evident, verify the symptom and refer to the Symptom Chart.

Symptom Chart

Symptom Possible Sources Action
Excessive crankcase pressure
*
Blocked PCV crankcase vent oil separator.
*
Blocked PCV hose.
*
CLEAN or INSTALL new PCV components as necessary. TEST the system for normal operation.
*
Worn or damaged engine components.
*
REFER to: Engine (303-01B, Diagnosis and Testing).
Oil in the air intake system
*
Crankcase vent oil separator.
*
CLEAN or INSTALL a new crankcase vent oil separator. TEST the system for normal operation.
*
Turbocharger
*
REFER to: Turbocharger (303-04E, Diagnosis and Testing).
*
Worn or damaged engine components.
*
REFER to: Engine (303-01B, Diagnosis and Testing).

Engine Emission Control > < Engine Emission Control - 2.3L Duratec-HE (MI4)