Misfiring and now no compression

[ryan319]

Can someone post a couple of pictures of spark plugs that show proper coloring for one of these engines. I am new to super charged engines and would like to see how a normal plug is suppose to look.

I would think that it would look similar to a plug in any healthy motor.

Should be interesting to see what happens here. I can't see Ford covering the motor with the mods and a tune. And no offense to the op, but they shouldn't cover it, mod at your own risk. I'm wondering if the misfire you were experiencing was actually detonation from a lean condition.

 

[rancid]

Good luck dude, hope it all works out but as others have mentioned I wouldn't be surprised if the mothership decides to deny the warranty if the dealership has to special order a motor.

 

[turbo]

my friend is one of the svt engineers working on the shelby. he is contacted personally on all MAJOR warranty claims. He is a mod friendly guy, but even he answers to somebody. The dealership in no way shape or form can authorize any warranty claim at that level unless the broke it and are paying themselves if the OEM denies. Period. best of luck to you, its not over til they say no! stay positive.

on a side note, isnt it funny most tuners always go the route of bad gas, failed parts, or anything but,"maybe the tune IS f'ed up?" just mho

 

[Superfly99]

The key here is that the "dealership" said "it" would cover it. It seems that the tech put in the wrong plugs, probably not gapped right either. Ford may not have to get involved, if I understand correctly what the OP is stating. Good luck, hope it works out.

 

[09Troublemaker]

keep us posted and good luck with this

 

[Farmer-Ted]

probably not gapped right either.

I know, look at the gap in the picture! Thats way over what it should be!

It was mis-firing prior to the dealer putting stock plugs back in. So the damage was already done. Stock plugs would not do that anyway. Something caused a extreme lean condition. OP should have looked harder as to why the initial mis-fire occurred in first place.

Hopefully the cylinder is not damaged, can't just rebore and hone these blocks. Fix is going to be expensive.

 

[Willie2]

OP sig says he is running cat less

good luck. that mod list is what 90% of us want to run.

 

[Shhhh]

OP sig says he is running cat less

good luck. that mod list is what 90% of us want to run.

And 99% of us running similar modded setups are seeing no detonation or misfires. Seems like a possible tune issue and the plugs didnt have any effect on it. The stock plugs are fine regapped.

 

[Van@RevanRacing]

Here is why we have to look at components of the OP's build and not "The Tune"

ALL CALIBRATORS - TUNERS utilize a same base file and or "tune" repeatedly. They custom tweak the tune to different set ups but one thing is certain. Lund does not dampen stock misfire signal nor does he dampen knock sensor. So if the OP had knock and/or the OP was not getting a commanded A/F the PCM would pull timing and go into protetction strategies. From what I have been told the tune is repeatable. Similar to what Ford does with their different strategies. Then you get a custom calibration for your "Modifications"

Thus the reason why I pointed out looking at the cats. The OP Oriiginally stated he had a catted kooks long tube set up. Aftermarket cats fail frequently on boosted engines and when they fail they cause huge back pressure in the engine which can cause catastrophic failure such as the OP. This is just an example. I am not stating this is the reason for the OP's failure just a possible reason for failure.

 

[Snoopy49]

Van,
Would the PCM throw any codes in a condition like you described?

 

[Farmer-Ted]

OP sig says he is running cat less

OP changed his signature. Listed cats yesterday. That's why Van commented on it. Something is starting to stink.

 

[mustangc]

Checking the OP's mod list, it doesn't reference a Bob Oil Seperator ANYWHERE! Obviously, oil mist was passed into the intake where it either clogged the intercooler or travelled into the combustion chamber where it lowered the fuel octane enough to cause catastrophic detonation. I hope the OP was at least using AMSOil, or enough oil may have been passed through to physically hydraulic a cylinder. op: Not even a Lund tune could have saved it! :lol1:

 

[F8L SN8K]

I concur....



Wait what were we talking about again?? Oh yeah that's right what could have caused a failure like this with anything besides the tune. Has there been any reports of relays failing that could cause the second fuel pump not to function? It used to happen on the Lightnings but I haven't heard of it happening since them. Is that a possibility on the new cars?

Side note: Some cats fail due to a "tuner" shutting off the Catalytic converter protection logic in the tune which is also hard on exhaust valves, seats and valve guides.

 

[usmotox]

This one is getting deep for sure good luck op.

 

[04SVTMystic]

Cannot believe Ford will warranty this engine with the info seen here. Hope you have a good outcome based on what you said the dealer told you. Good luck.

 

[Van@RevanRacing]

Van,
Would the PCM throw any codes in a condition like you described?

Yes. It will even throw misfire codes before catastrophic damage on a per cylinder basis.

Checking the OP's mod list, it doesn't reference a Bob Oil Seperator ANYWHERE! Obviously, oil mist was passed into the intake where it either clogged the intercooler or travelled into the combustion chamber where it lowered the fuel octane enough to cause catastrophic detonation. I hope the OP was at least using AMSOil, or enough oil may have been passed through to physically hydraulic a cylinder. op: Not even a Lund tune could have saved it! :lol1:

I can lead a horse to water but I can't make him drink. No he didn't have an oil separator so perhaps you are correct..........now everybody run out and buy one! Great advice mustangc!! :beer:

I concur....



Wait what were we talking about again?? Oh yeah that's right what could have caused a failure like this with anything besides the tune. Has there been any reports of relays failing that could cause the second fuel pump not to function? It used to happen on the Lightnings but I haven't heard of it happening since them. Is that a possibility on the new cars?

Side note: Some cats fail due to a "tuner" shutting off the Catalytic converter protection logic in the tune which is also hard on exhaust valves, seats and valve guides.

The PCM will throw a wrench if a pump goes down on the 2013 GT500. I had a pump down on my car and it threw a wrench. The SCT Tuner could not see the DTC and we had to determine the cause of the wrench with an IDS Scan Tool.

Excellent point on the disengagement of Catalytic Converter Protection Strategy. Lund does not turn off catalytic converter protection strategy unless the vehicle has off road exhaust (NO CATS). My point previously is simple.

1. The cats are no longer in the same location as OEM with long tube headers. The cats are further downstream in the exhaust system. Heat to the catalytic converter is different and the OEM calibration and rear O2's are designed to pick up temperatures and cool the catalytic converters with them in a certain location, the OEM location.
2. The COT Strategy is designed to cool the OEM Catalytic Converter not an aftermarket catalytic converter regardless of location.
3. Aftermarket cats do not undergo the rigorous testing that Ford OEM cats do to receive the CARB certification.
4. Ford used a very high quality "true" high flow catalytic converter on the 2013-2014 GT500.

 

[F8L SN8K]

The PCM will throw a wrench if a pump goes down on the 2013 GT500. I had a pump down on my car and it threw a wrench. The SCT Tuner could not see the DTC and we had to determine the cause of the wrench with an IDS Scan Tool.

That's good to know. That's what worried with my old lightning was tha there was no warning just a shutter and then complete destruction Top Fuel style.

 

[Van@RevanRacing]

That's good to know. That's what worried with my old lightning was tha there was no warning just a shutter and then complete destruction Top Fuel style.

Ugh.....that would suck.

FYI. When I made 765 RWHP on my 2013 GT500 it was with one fuel pump and a KB Dual BAP.

 

[Hungdaknees]

I have bob oil separators on both side I took out the cats before all this happened. When I talk to van and John Lund. The dealership took responsibility for this cause they put the wrong plugs back in. I told them I had NGK in there and gave them a new set when they wanted to change the old ones. The mechanic didn't put the NGK that I gave them he put the factor ones in.

 

[Bllit11]

Even with the oil separator if he had that much blowby it would have happened anyway period.