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Diagnosis and Testing|Removal and Installation > < 303-04A Fuel Charging and Controls - 1.4L Duratec-16V (Sigma)-1.6L Duratec-16V (Sigma)|Specifications

Focus 2004.75 (07.2004-)

Fuel Charging and Controls - 1.4L Duratec-16V (Sigma)/1.6L Duratec-16V (Sigma) - Fuel Charging and Controls Focus 2004.75 (07/2004-)
Diagnosis and Testing

General Equipment
Worldwide Diagnostic System (WDS)

Inspection and Verification

  1. Verify the customer concern by operating the system.
  1. Visually inspect for obvious signs of mechanical or electrical damage.

Visual Inspection Chart

Mechanical Electrical
  • Fuel leaks
  • Blocked or contaminated fuel filter
  • Damaged fuel supply manifold
  • Damaged fuel line connections
  • Damaged vacuum hoses
  • Fuel pressure regulator (if equipped)
  • Fuel pulse damper (if equipped)
  • Loose or corroded connector(s)
  • Wiring harness
  • Fuel injector(s)
  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 concern is not visually evident, verify the symptom and refer to WDS.

Diagnosis and Testing|Removal and Installation > < 303-04A Fuel Charging and Controls - 1.4L Duratec-16V (Sigma)-1.6L Duratec-16V (Sigma)|Specifications