My #8 failured on my stock 5.0
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Joined: January 23, 2011
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There are a few aftermarket tuners who HAVE stated that the #8 issue is in the factory tune. From what I understand is that it starts to run lean after long periods of WOT (example -- WOT pulls in 5th & 6th) and the only thing that basically saves the motor is the cat over temp sensors that add fuel and richen up the AFR and cools down #8 a bit.
DONT BASH ME FOR ANYTHING I JUST SAID, THIS IS WHAT I HAVE READ!!!!!
DONT BASH ME FOR ANYTHING I JUST SAID, THIS IS WHAT I HAVE READ!!!!!
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Bullitt Member
Joined: October 11, 2011
Posts: 245
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From: Texas, Nederland
Originally Posted by powerstrokin06
Nice rig! I feel ya on the truck that's why I will not sell mine, I'd cry if I ever saw it on the street again. Mines a Silver 06' 6ohhhhhh and yes I will not be modding my new Mustang when I get it till it's out of warranty. Good luck with your car and I hope they make it right for ya man.....Here's a lil kick in the butt for dumping that truck....lol
I hate to do it to ya but I do love the Superduty and you sir had a fine one....Best of luck brother.....
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Bullitt Member
Joined: October 11, 2011
Posts: 245
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From: Texas, Nederland
Originally Posted by grabber blue gt
There are a few aftermarket tuners who HAVE stated that the #8 issue is in the factory tune. From what I understand is that it starts to run lean after long periods of WOT (example -- WOT pulls in 5th & 6th) and the only thing that basically saves the motor is the cat over temp sensors that add fuel and richen up the AFR and cools down #8 a bit.
DONT BASH ME FOR ANYTHING I JUST SAID, THIS IS WHAT I HAVE READ!!!!!
DONT BASH ME FOR ANYTHING I JUST SAID, THIS IS WHAT I HAVE READ!!!!!
Former Vendor
Joined: March 12, 2012
Posts: 506
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From: Malvern, PA
First off, sorry to hear your 5.0 let go! Nothings worse then a practically brand new stock engine blowing.
Cylinder #8 issue- I don't think you can definitely say it's the tune causing it to blow. It can most certainly contribute to the cause, but there's several things that can happen, poor octane, oil/coolant temperatures, driving style etc. All of these symptoms can cause the weakest link in an engine to let go.
Either way, we can safely tune your new 5.0 and offer you a cylinder #8 warranty! I think you'll be really happy with the tune results with, throttle response, hp/tq gains, and possibly a mpg or two increase.
Let me know if you have anymore questions!
Shane
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Bullitt Member
Joined: October 11, 2011
Posts: 245
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From: Texas, Nederland
Originally Posted by AMShaneLesky
First off, sorry to hear your 5.0 let go! Nothings worse then a practically brand new stock engine blowing.
Cylinder #8 issue- I don't think you can definitely say it's the tune causing it to blow. It can most certainly contribute to the cause, but there's several things that can happen, poor octane, oil/coolant temperatures, driving style etc. All of these symptoms can cause the weakest link in an engine to let go.
Either way, we can safely tune your new 5.0 and offer you a cylinder #8 warranty! I think you'll be really happy with the tune results with, throttle response, hp/tq gains, and possibly a mpg or two increase.
Let me know if you have anymore questions!
Shane
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Joined: December 14, 2007
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From: State of Jefferson Mountains USA
The aftermarket tunes are octane specific.
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Bullitt Member
Joined: October 11, 2011
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From: Texas, Nederland
Originally Posted by cdynaco
The stock tune has the Adaptive Spark Ignition system. It adjusts timing and A/F depending on 87 - 93 for a safe tune.
The aftermarket tunes are octane specific.
Former Vendor
Joined: March 12, 2012
Posts: 506
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From: Malvern, PA
That info is all correct. Although, sometimes filling up at non-name brand gas stations gets you "left over" gas. Having strange amounts of ethanol or just overall quality, additives and what not, isn't uncommon for a small no-name gas station. Like I said, I don't think it's just one thing. If you got a significant amount of bad gas, had high oil temps, and the stock tune runs the car a little lean, all of those working together will make an engine fail.
In my personal experience, I just try to take certain scenarios out of the equation. Thus, I try and fill up on 93 all the time at Sunoco, Exxon, Shell, etc, keep an eye on temp sensors, take in mind how often and how long I was accelerating heavily etc. I've always had "good luck" this way and realistically is the best way to take care of your car.
Regardless, there's an odd issue with the #8 cylinders and going to extremes can only help prevent problems. Sometimes they happen regardless. This is why it's great to get a Bama tune with a cylinder #8 warranty!
Hope this helps!
Shane
Cobra R Member
Joined: December 13, 2004
Posts: 1,708
Likes: 3
From: United States
That info is all correct. Although, sometimes filling up at non-name brand gas stations gets you "left over" gas. Having strange amounts of ethanol or just overall quality, additives and what not, isn't uncommon for a small no-name gas station. Like I said, I don't think it's just one thing. If you got a significant amount of bad gas, had high oil temps, and the stock tune runs the car a little lean, all of those working together will make an engine fail.
In my personal experience, I just try to take certain scenarios out of the equation. Thus, I try and fill up on 93 all the time at Sunoco, Exxon, Shell, etc, keep an eye on temp sensors, take in mind how often and how long I was accelerating heavily etc. I've always had "good luck" this way and realistically is the best way to take care of your car.
Regardless, there's an odd issue with the #8 cylinders and going to extremes can only help prevent problems. Sometimes they happen regardless. This is why it's great to get a Bama tune with a cylinder #8 warranty!
Hope this helps!
Shane
In my personal experience, I just try to take certain scenarios out of the equation. Thus, I try and fill up on 93 all the time at Sunoco, Exxon, Shell, etc, keep an eye on temp sensors, take in mind how often and how long I was accelerating heavily etc. I've always had "good luck" this way and realistically is the best way to take care of your car.
Regardless, there's an odd issue with the #8 cylinders and going to extremes can only help prevent problems. Sometimes they happen regardless. This is why it's great to get a Bama tune with a cylinder #8 warranty!
Hope this helps!
Shane
Mach 1 Member
Joined: January 6, 2011
Posts: 872
Likes: 3
From: Phoenix, Az
I spoke with a couple of SVT guys at a local show the other day. I asked him where the ****** are in the 5.0 coyote. He said for all the thrashing they've put it through the only thing that comes up from time to time is the #8 jug running lean and sometimes burning a piston or exhaust valve. It was his opinion that this was most likely a situation that would only arise when driven extremely hard. In my opinion, if it runs lean when driven hard, it likely runs lean most of, if not all the time. I'm not going to get into it any further than that.
Definitely make sure any tuning keeps enough fuel in there and doesn't go crazy with spark.
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Bullitt Member
Joined: October 11, 2011
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From: Texas, Nederland
Originally Posted by fake
So is this the first stock 8 to let go? I have not heard of any stock engines letting go except this incident.
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From: Palm Beach, FL
Originally Posted by White5ohh
No I've I've read of a couple online. And the dealer said they have had some
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Originally Posted by White5ohh
No it's just that after having a 6.0 and doing a bunch of motor **** which voided the warranty it cost me 10 grand out of pocket to fix it after I lifted and cracked the heads. So this time I decided to wait for my warranty to end before putting performance stuff in it. Although that truck is still my favorite vehicle to this day.
Thread Starter
Bullitt Member
Joined: October 11, 2011
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From: Texas, Nederland
Originally Posted by flySWA737
First I've heard of. Sorry to hear what happened. Hope you get your car fixed so you can be back on the road.
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Bullitt Member
Joined: October 11, 2011
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From: Texas, Nederland
Originally Posted by ShaneGT
wtf is the wheel hanging on the lift? sad to see the motor onthe ground 
Bullitt Member
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From: Palm Beach, FL