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.
3-14 Symptom Charts
No Diagnostic Trouble Codes (DTCs) Present Symptom
Charts
NOTE: Black smoke indicates a rich fuel mixture, blue smoke indicates burning oil, and white smoke indicates water in the combustion chamber.
SYSTEM/COMPONENT | REFERENCE (Section 5 Pinpoint Test unless noted) |
|---|---|
Base Engine | REFER to the Workshop Manual Section 303-00, Engine System, Diagnosis And Testing to continue diagnosis. |
Fuel Delivery System — Black smoke | GO to Pinpoint Test HC. |
Ignition System — Black smoke | For KA 1.5L TIVCT or Fiesta 1.6L TIVCT, GO to Pinpoint Test JC. For all others, GO to Pinpoint Test JB. |
Positive Crankcase Ventilation (PCV) System — Blue smoke | REFER to the Workshop Manual Section 303-00, Engine System for a description of the Oil Consumption Test. |
Turbocharger System — Blue smoke |
Chart 19
— Fuel System Concerns: Odor, Engine Compartment
SYSTEM/COMPONENT | REFERENCE (Section 5 Pinpoint Test unless noted) |
|---|---|
EVAP System | Visual. |
Fuel Delivery System | Visual. GO to Pinpoint Test HC. |
Chart 20
— Engine Noise (under hood)
NOTE: Attempt to identify the source of the noise. If the noise is from a source other than those listed below, refer to No Diagnostic Trouble Codes (DTCs) Present Symptom Chart Index (for noise such as spark knock) or the applicable Workshop Manual section to continue diagnosis.
SYSTEM/COMPONENT | REFERENCE (Section 5 Pinpoint Test unless noted) |
|---|---|
Secondary Ignition System | CHECK for a snap noise that may be due to secondary ignition arcing. For KA 1.5L TIVCT or Fiesta 1.6L TIVCT, GO to Pinpoint Test JC. For all others, CHECK the condition of the spark plug boots. |
Turbocharger System |
Chart 21
— Exhaust System Concerns: Odor (Sulfur or Rotten Egg Smell)
NOTE: A slight sulfur smell may be normal. Catalysts with less than 8,000-16,000 kilometers (5,000-10,000 miles), either from a new vehicle or new catalyst, are likely to have a sulfur smell due to the highly active state of new catalysts. Installing a new catalyst may actually make the symptom worse.
2016 Powertrain Control/Emissions Diagnosis, Gasoline Engines, 3/2015
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.