Engine Controls - Runs Rough/Misfire DTC's
TSB 11-8-1908/30/11
3.5L GTDI ENGINE RUNS ROUGH, HESITATES,
SHUDDERING WITH MISFIRE DTCS P0300, P0301,
P0302, P0303, P0304, P0305, P0306 OR P0316
FORD:
2010-2011 Taurus, Flex
LINCOLN:
2010-2011 MKS, MKT
This article supersedes TSB 11-5-3 to update the Service Procedure.
ISSUE
Some 2010-2011 Taurus, Flex, MKS and MKT vehicles equipped with a 3.5L Gasoline Turbocharged Direct Injected (GTDI) engine may exhibit rough running, hesitation, shuddering with DTCs P0300, P0301, P0302, P0303, P0304, P0305, P0306 or P0316.
ACTION
Follow the Service Procedure steps to correct the condition.
SERVICE PROCEDURE
1. Determine engine build date. Refer to Workshop Manual (WSM), Section 303-01.
a. If engine build date is on or before 8/2/2010, proceed to Step 2.
b. If engine build date is after 8/2/2010, proceed to Step 5.
2. Retrieve DTCs to determine which cylinder has misfired.
3. Remove the spark plug of the affected cylinder. Refer to WSM, Section 303-07.
4. Check the spark plug for broken ceramic. (Figure 1)
a. If the spark plug has broken ceramic or the part number is CYFS-12F-3, replace all six (6) spark plugs. Refer to WSM, Section 303-07. Proceed to Step 6.
b. If the spark plug does not have broken ceramic and the part number is CYFS-12Y-3, do not replace spark plugs. Proceed to Step 6.
5. Determine vehicle build date:
a. If vehicle build date is on or before 10/27/2010, proceed to Step 6.
b. If vehicle build date is after 10/27/2010, do not continue with this article. Refer to Powertrain Control/Emissions Diagnosis (PC/ED) manual for normal diagnostics.
6. Reprogram the Powertrain Control Module (PCM) to the latest calibration using IDS release 72.03 and higher. This new calibration is not included in the VCM 2011.3 DVD. Calibration files may also be obtained at the website.
NOTE
PLEASE ADVISE THE CUSTOMER THAT THIS VEHICLE IS EQUIPPED WITH AN ADAPTIVE TRANSMISSION SHIFT STRATEGY WHICH ALLOWS THE VEHICLE'S COMPUTER TO LEARN THE TRANSMISSION'S UNIQUE PARAMETERS AND IMPROVE SHIFT QUALITY. WHEN THE ADAPTIVE STRATEGY IS RESET, THE COMPUTER WILL BEGIN A RE-LEARNING PROCESS. THIS RE-LEARNING PROCESS MAY RESULT IN FIRMER THAN NORMAL UPSHIFTS AND DOWNSHIFTS FOR SEVERAL DAYS.
Parts Block
WARRANTY STATUS: Eligible Under Provisions Of New Vehicle Limited Warranty Coverage And Emissions Warranty Coverage
IMPORTANT: Warranty coverage limits/policies are not altered by a TSB. Warranty coverage limits are determined by the identified causal part.
OPERATION DESCRIPTION TIME
110819A 2010-2011 Taurus, MKS, 0.4 Hr.
Flex, MKT 3.5L GTDI:
Check DTCs, Build Dates,
And Reprogram The PCM
(Do Not Use With Any
Other Labor Operations)
110819B 2010-2011 Taurus, MKS, 1.5 Hrs.
Flex, And MKT 3.5L GTDI:
Check DTCs, Build Dates,
Remove And Or Replace 6
Spark Plugs, And
Reprogram The PCM If
Necessary (Do Not Use
With Any Other Labor
Operations)
DEALER CODING
CONDITION
BASIC PART NO. CODE
12405 01
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