nj07

I can not believe all the threads on the 5.0 gt section how many of you guys are replacing motors on brand new cars and having all these other problems wih the trans's on the 2011 and up mustangs im sorry you guys spent all this money and you have these problems cant wait to see what the 2015 car is going to bring?

Ditty

1, 3, 4 ::::: IDK the firing order or what the numbering order is....but.....

Anyone think to check the O2 sensors? I had an O2 sensor fail and it was causing tons of issues on my 2012GT. I'd look into that. I was getting misfire codes and Driverside U/S O2 high voltage codes. Dealer refused to fix it, so I did it myself in the ally behind my house. Works fine and no more codes.

wicked400ex

TSB
12-12-8 CHECK ENGINE LIGHT ILLUMINATED - DTCS P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307, P0308 - NO DRIVEABILITY SYMPTOMS - BUILT ON OR BEFORE 11/30/2012

Publication Date: December 17, 2012

FORD: 2013 Mustang


ISSUE:
Some 2013 Mustang vehicles equipped with a 5.0L engine and manual transmission and built on or before 11/30/2012 may exhibit a Check Engine Light illuminated accompanied by any combination of diagnostic trouble codes (DTCs) P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307 and/or P0308 stored in continuous memory only. Additionally, there will be no apparent drivability symptoms present and no DTCs present which are not listed.

ACTION:
Follow the Service Procedure steps to correct the condition.

SERVICE PROCEDURE

Using IDS, perform self test on the PCM to check for both continuous memory (CMDTCs) and key on engine running (KOER) DTCs.
If any DTCs P0300-P0308 are present in KOER and/or a driveability concern, such as cylinder misfire, is present, do not continue with this article. Refer to Powertrain Control/Emissions Diagnosis (PC/ED) manual for normal diagnostics.
If any DTCs P0300 - P0308 are present in continuous memory and there is no discernible drivability concern, such as cylinder misfire, present, proceed to Step 2.
Reprogram the powertrain control module (PCM) to the latest calibration using IDS release 82.02 and higher. This new calibration is not included in the VCM 2012.11 DVD. Calibration files may also be obtained at Buy Motorcraft Parts Online | Official Motorcraft Auto Parts Site | FordParts.com.
Using IDS, perform the Misfire Monitor Neutral Profile Correction procedure.

WARRANTY STATUS:
Eligible Under Provisions Of New Vehicle Limited Warranty Coverage And Emissions Warranty Coverage
IMPORTANT: 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.

OPERATION DESCRIPTION TIME
121208A 2013 Mustang: Check DTCs Reprogram PCM Perform The Misfire Neutral Correction Procedure Includes Time To Clear Codes After Repair (Do not Use With Any Other Labor Operations) 0.3 Hr.

DEALER CODING
BASIC PART NO. CONDITION CODE
RECALEM 04

Speed Buggy

There are a lot of people having this problem, myself included.

Rebel302

I too have had misfire issues. After spending a month at the dealership, I hope mine is fixed. Field service engineers came down to my dealership to work on my car. They changed out all of my spark plugs and so far I have not had a misfire, but I just picked the car up this afternoon. Hopefully I won't have any more problems. I will keep you guys posted on this. In the past year, I have had my computer reflashed, a coil, and a plug replaced. Car had been running flawless till just a few months ago. I currently have 36,400 miles. Been perfect for most of those miles. I don't know what happened, but I'm glad they fixed it under warranty.

awbreyjd

well that explains why a custom tune seems to fix the issue.

Speed Buggy

Had the TSB performed on my car and it didn't fix the problem. Going back this week for round two.

JTS64

Purchased a 2013 GT in January, it is back at the dealer again for the 3rd time (10 days total) for cylinders 4 and 8 misfiring at low idle. Car has about 1300 miles on it, mostly highway as I average over 300 a week back and forth to work. Service department is waiting on Ford to get with them now. I am now looking at the Lemon laws, which state if they can't fix it after 3 tries I have to send a letter to Ford and give them one more chance to fix it.