Problems with 2012 v6 auto

Discussion in '2011+ Ford Mustang V6 3.7L Tech' started by gaudric, Jun 5, 2012.

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  1. gaudric

    gaudric Junior Member

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    It started about a month ago i would very randomly get blinking CEL's (misfire on only 1 particular cylinder) and then it would go away and come back. Brought it into the dealer several times they never had the same issue but saw the code, Finally brought it in for a 4th time and they found a head to be cracked (only 7k miles). At this point ford told them to replace the whole engine, a week later here i am.

    Went to drive home running and sounding great, 30 miles later i accelerate and upon slowing down at the stop light the engine starts to shake REALLY bad and the CEL blinks again.

    So now the dealer has asked me to keep and eye on it and bring it in if it happens again.


    Anyone have any ideas what could be causing it? So far my dealer has been great and i hope they can fix this issue permanently. Also no mods at all are on the car or ever have been.
     
  2. David Young

    David Young Member

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    Keep us posted on how it goes. Your 3.7L is the first one i have ever heard of to break :(
     
  3. gaudric

    gaudric Junior Member

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    Will do... my service guy is just as perplexed as me after replacing the entire engine

    Sent from my Galaxy Nexus using Tapatalk 2
     
  4. stkjock

    stkjock ---- Madmin ---- Staff Member Administrator Super Moderator S197 Team Member

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    without any codes or a more detailed description - it's not possible to diagnose the issue over the internet.
     
  5. gaudric

    gaudric Junior Member

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    The blinking cell is usually a misfire.... but other then that one blip the car has been doing great with the new engine. Took a wot run and it feels like a whole new beast

    Sent using Tapatalk 2
     
  6. timfoster405

    timfoster405 forum member

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    did they replace the engine's computer? (not sure what acronym we are using these days... pcm... ecu)

    I too have a 2012 V6 auto with about 12k miles. I have been thinking about getting it tuned and CAI. Not sure if I want to chance it now.
     
  7. VTXFrank

    VTXFrank Obama SUCKS!

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    One 3.7L engine issue makes you want to reconsider getting tuned? Not trying to be a dick here, but are you kidding me? If that makes you worry, just don't do a thing to it until it's out of warranty. Seriously.

    It's like all the folks panicking about their 5.0L engines when a few popped due to bad tuning. When you look at the amount of tuned cars vs. those that had problems, it's such a small percentage as to be negligible.

    You've got a MUCH better chance of being killed in a traffic accident than having engine problems, but you still drive don't you?
     
  8. timfoster405

    timfoster405 forum member

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    Yes, I understand... but the thought of modifying a car that I am making payments on gives me the creeps...Every mustang I have owned in the past, I have owned outright and modified the hell out of them even blowing them up a few times. anyway, my issue to figure out, don't want to high-jack thread...
     
  9. gaudric

    gaudric Junior Member

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    Little update everything seems to be going strong now since the tech recalibrated the misfire sensor

    Sent using Tapatalk 2
     
  10. BlueSoulStang

    BlueSoulStang forum member

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    Good stuff! Haven't been on the forum for some time, but glad the problem was fixed.

    As for modding your financed car... Don't worry, just make sure you keep all your stock stuff incase anything goes wrong. :p
     
  11. Cars12369

    Cars12369 forum member

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    I have blown my 3.7 already i was for sure the first ford never seen anything like this happen i didnt have miss fire with old one but new one around 90 i would have miss fire took to dealer and they fixed it and i had bama tune on
     
  12. Germeezy3

    Germeezy3 forum member

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    So you blew a stock 3.7?
     
  13. Cars12369

    Cars12369 forum member

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    all i had was 3.73 gears on intake and tune at the the time i was driving down street engine died would not turn on put tune back to stock then put stock intake back on scary experience took 2 weeks for them to replace it they had to tear down entire motor. car had i think 10-12k miles on to i bought brand new also
     
  14. RACE RED PONY

    RACE RED PONY Junior Member

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    I put an AIRRAID CAI and FLOWMASTER axle back exhaust and have had no issues with my 2011
     
  15. Victor Martinez

    Victor Martinez Junior Member

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    I bit the bullet and modified mine at 14000 miles 2011 v6 auto, tune,throttle body,cai,shorty headers axel backs, maximum Motorsport suspension kit”not look back either”..car now has 68000 and it’s been solid daily driver!! Still owe 4K on it and I’m planning soon for the gears& driveshaft;)..
     
  16. 07gts197

    07gts197 forum member

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    5 years later...
     
  17. stkjock

    stkjock ---- Madmin ---- Staff Member Administrator Super Moderator S197 Team Member

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    with a worthless post.... that's two threads he's done this with now....
     
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