p0316 misfire

JB9 CHECK THE SECONDARY COIL RESISTANCE FOR THE MISSING CYLINDERS
Ignition OFF.
Suspect coil connector disconnected.
Measure resistance between: Suspect coil connector, IGN START/RUN, component side and ignition coil spring, located in the ignition coil boot.
Is the resistance between 5,000 and 6,000 ohms?

No 
INSTALL a new COP.

Clear the PCM DTCs. REPEAT the self-test. 
 
Well heres a update: Took it to ford and the tech said he couldn't find any dtc's stored besides the cats codes a po420 and 430. He goes he feels it not running right because of the downpipes. I told him the code and he said its just a random misfire code. He would want it back stock with oem downpipes back on. I just feel like because this guy said he drove it and it didn't feel right. No Sh*t it didn't thats why I brought it in lol. He's not going to be able to work on it till next week cause its the weekend and off Friday. I just feel like he barley tried to see whats wrong with it. And just looked at it and saw downpipes and said he can't figure it out so I have to pay for a diagnostic fee until I put oem downpipes back on. So Im paying for a diagnostics fee and then if I bring it back I have to pay for another deductible
 
No way you have to pay for the same work twice.  Thats a load of BS.  Its a good thing u still have the oem dp's tho.

Did you check the coil resistances?
 
I did not check the coil resistances unfortunately, I went there the same day and had a nice talk with the Service manager. He agrees and hes going to have the foreman of the shop take a look at it. when I talked to the service manager after work he agrees that having aftermarket downpipes isnt going to have a affect on a misfire. Talked to him about people tuning and he goes I dont care if you have a car tuned. Aslong as we get money from ford we will take care of ya. So the foreman didn't get to it on friday and or saturday cause they have cars backed up cause of the strike. The old tech said its not a dry misfire so the coil is good and coil packs and sparkplugs.
 
FoshoMatt said:
Well here's a sad update 25% loss in cylinder 6 and tech said it needs a new engine.
Click to expand...


Sorry to hear it! Hope your service manager takes care of you! Best of luck!


Sent from my iPhone using Tapatalk
 
Any tips you guys have so they can warranty it? I put stock downpipes back on tune is off and then the noise maker is broke and gone so I can't replace that. What should I say to convince them? Or just play stupid lol
 
If you and your service advisor don't have an "understanding", then it is best to roll over and play dumb.  I rarely go to a dealership for servicing my Edge, so I play dumb all the time, not that it's a stretch for me LOL.  But mainly be nice to the folks there, keep asking questions, but don't appear too smart, more like "oh really, how does that work, kinda lost me there" kinda questions?
 
Well I have good news this time I guess lol I got the codes to pop up this time and I didn't clear them. I have 8 of them lol. P0306,P0316,P0420,P0430,U0253,UU0131,C1280, I still wonder why I have 02 codes when I have stock downpipes back on.
 
No longer than a few days. I just don't wanna clear the codes cause I finally have the misfire codes for when I bring it in on Tuesday lol
 
Some techs at my work said it could be a head gasket maybe or the rings around the piston. But the ford tech didnt put a scope down there. They had there scan tool say it was losing compression. They didnt tell me the cause. But thanks everyone for the help. I take it in the next few days so ill keep y'all updated! Thanks for the help guys!
 
UPDATE: Well Good news I would say. Found out cylinder head is going to be replaced. I think he said burned exhaust valve.
 
First one I've heard that has not had a block replaced for an internal engine issue, IIRC.  Hope they found the right culprit, and as long as Ford is paying :thumb:
 
Yes im just happy ford it paying it lol. But its just weird cause my extended I bought ends in like 4 months. So Im glad this happen'd now. I just curious what caused it to burn out? Could I be running lean? I have LMS tuned and catless downpipes.
 
Hard to say.  Could be the engine is running lean, could be there is deposit buildup around the valve seats, could be inadequate cooling, ...  Once they actually take a look at the valves, they will know better.  May not be just the one, may be others on their way out as well.  It IS true that a tune runs leaner.  In order to make more power with the same fuel, that's one of the parameters normally adjusted.  But hard to tie it down to that, as there is literally no data/anecdotal evidence on this type of event in (at least) the transverse 3.5EB.
 
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