A: No Start A: Introduction — 2016 workshop reference 4939

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.

A10 CHECK THE FUEL INJECTORS FOR VOLTAGE

Note: A no start condition typically exists only if greater than half of the fuel injectors are without voltage. Check at least 2 fuel injectors, 1 on each bank on V type engines.

• Ignition OFF.

• Disconnect 2 fuel injectors.

• Ignition ON, engine OFF.

• Measure the VPWR voltage at each fuel injector harness connector.

Is the voltage greater than 10.5 V?

Yes	No
GO to A11 .	REPAIR the open circuit. Clear the PCM DTCs. REPEAT the self-test.

A11 CHECK THE FUEL INJECTORS' ABILITY TO DELIVER FUEL

• Cycle the ignition several times to charge the fuel system.

• Disable the fuel pump.

• Monitor the fuel pressure gauge while cranking the engine for at least 5 seconds.

Is there a pressure drop greater than 34 kPa (5 psi) while cranking the engine?

Yes	No
For Edge 2.0L, Edge 2.7L, Escape/Kuga 1.6L, Escape/Kuga 2.0L, Expedition, Explorer 2.3L, Explorer 3.5L GTDI, F-150 2.7L, F-150 3.5L GTDI, Fiesta 1.0L, Fiesta 1.6L GTDI, Flex 3.5L GTDI, Focus, Fusion 1.5L, Fusion 2.0L, MKC, MKS 3.5L, MKT 2.0L,	GO to A12 .

Yes

For Edge 2.0L,

Edge 2.7L,

Escape/Kuga 1.6L,

Escape/Kuga 2.0L,

Expedition,

Explorer 2.3L,

Explorer 3.5L GTDI,

F-150 2.7L,

F-150 3.5L GTDI,

Fiesta 1.0L,

Fiesta 1.6L GTDI,

Flex 3.5L GTDI,

Focus,

Fusion 1.5L,

Fusion 2.0L,

MKC,

MKS 3.5L,

MKT 2.0L,

GO to A12 .

Source reference 4939

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.