Engine Misfire With Diagnostic Trouble Codes (DTCs) P0300, P0301, P0302, P0303, P0304, P0305 And/or P0306

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3.5L GTDI – ENGINE IGNITION MISFIRE – BUILT ON OR BEFORE 6/15/2013

The article supersedes TSB 14-0160 to update the base warranty causal part number.

ISSUE:

Some 2011-2013 F-150 vehicles built on or before 6/15/2013 and equipped with a 3.5L Gasoline Turbocharged Direct Injection (GTDI) engine may exhibit various engine misfire symptoms accompanied by diagnostic trouble codes (DTCs) P0300, P0301, P0302, P0303, P0304, P0305 and/or P0306 stored in the powertrain control module (PCM).

ACTION:

Follow the Service Procedure steps to correct the condition.

SERVICE PROCEDURE

Does normal diagnosis in the Powertrain Control/Emissions Diagnosis (PC/ED) manual lead to spark plug inspection?
1. Yes – proceed to step 2.
2. No – this article does not apply. Continue with normal diagnosis.
Remove the spark plug from the affected cylinder. Refer to Workshop Manual (WSM), Section 303-07.
Inspect the spark plug for signs of carbon tracking. Is carbon tracking evident? (Figures 1 and 2)
1. Yes – replace all six spark plugs and spark plug coil boots. Refer to WSM, Section 303-07.
2. No – this article does not apply. Refer to PC/ED manual for normal diagnosis.

Figure 1 – 14-0180

Figure 2 – 14-0180

Engine Misfire with Diagnostic Trouble Codes (DTCs) P0300, P0301, P0302, P0303, P0304, P0305 and/or P0306 - 2011-2013 Ford F-150 | small light

OPERATION	DESCRIPTION	TIME
MT140180	Use Service Labor Time Standards For Diagnosis And Repair Or Actual Time	Actual Time

WARRANTY STATUS

Eligible Under Provisions Of New Vehicle Limited Warranty Coverage And Emissions Warranty Coverage.
Warranty/ESP coverage limits/policies/prior approvals are not altered by a TSB. Warranty/ESP coverage limits are determined by the identified causal part and verified using the OASIS part coverage tool.