Vehicle applicability: This diagnostic supplement covers multiple Ford vehicles and engines. Follow the application named in the source below. Some references apply to vehicles other than Mustang.
EM4 SYMPTOM CHECKS
◾ transmission concerns ◾ idle concerns ◾ driveability concerns ◾ exhaust smoke ◾ cooling system concerns
Are any of the symptoms present?
Yes | No |
|---|---|
CARRY OUT the PCM Quick Test. RETURN to Section 3 , Symptom Charts for further direction. REFER to the Exhaust Gas Analysis Chart at the beginning of this pinpoint test. After any repair, GO to EM26 . | GO to EM5 . |
EM5 PRELIMINARY CHECKS
• Carry out the following checks:
◾ vacuum lines for leaks and blockages ◾ electrical connections ◾ correct scheduled maintenance ◾ Ford authorized emission controls and components installed on the vehicle ◾ intake air tube and air cleaner concerns such as obstructions, leaks, or a dirty air cleaner
element
Is a concern present?
Yes | No |
|---|---|
REPAIR as necessary. After any repair, GO to EM26 . | GO to EM6 . |
EM6 CARRY OUT THE PCM QUICK TEST
• Carry out the PCM Quick Test to access any PCM DTCs. For the procedure information, refer to Section 3 , Symptom Charts.
Is a concern present?
Yes | No |
|---|---|
FOLLOW the Section 3 Quick Test direction. After any repair, GO to EM26 . | GO to EM7 . |
2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.