Problems with 2012 v6 auto

[gaudric]

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.

 

[David Young]

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

 

[gaudric]

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

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[stkjock]

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

 

[gaudric]

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

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[timfoster405]

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.

 

[VTXFrank]

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.

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?

 

[timfoster405]

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...

 

[gaudric]

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

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[BlueSoulStang]

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.

 

[Cars12369]

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

 

[Germeezy3]

So you blew a stock 3.7?

 

[Cars12369]

So you blew a stock 3.7?

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

 

[RACE RED PONY]

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

 

[Victor Martinez]

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..

 

[07gts197]

5 years later...

 

[stkjock]

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