Misfire Issues

[smurfslayer]

Did you retain the factory active shutters in front of the intercooler? If not, it is building moisture in the conditions you have explained. That will cause misfires.

crazy talk.

 

[Donovan]

You know what I just realized.

Every single forum that I am on (5 BMW, 2 Audi, 1 Ford), everyone complains when we tune or alter the vehicle. There are no maps, directions or books or technical orders written that tells us what to do when something happens to a modified vehicle. I'm inclinded to believe that these vehicles are tuned so tightly that any little thing can throw them the **** off. Any new air change, any new exhaust modification.

Unfortunately I'm a ***** for mods.... so I guess I'll have to deal with misfires, CELs and etc.

 

[smurfslayer]

Unfortunately I'm a ***** for mods

Who got pimp slapped by limp mode...

Yeah, there’s so much interconnected stuff. I have a friend who is a Ford Master tech, who recounted to me the tale of a customer who dropped off their exploder by tow truck

symptom described: truck won’t start. Much troubleshooting ensues, no joy, and truck won’t start. Call Ford Eng. hotline, discuss, get action plan. Still no joy. 8 hours in, tech goes to service advisor and asks to talk to the customer.

S/A for some reason not known doesn’t want to bother the customer. My buddy goes back, puts another 4 hours in, calls in some other techs - all are stymied. S/A relents, calls customer.

description is the same, they drill down further and after some q/a, the customer says he backed into a pole in a parking lot, got out, didn’t see any damage at all, so didn’t think anything of it. literally, not even a bumper scuff. Unfortunately, that’s what did it.

driver compressed the bumper enough to cut a wire harness, which my buddy had to trace to the tune of another 2 hours or so, and based on the story and findings - that’s not a warranty claim. Once the customer shut the car off, it would not restart until the harness got replaced.

The dealer lost quite a bit of money and time on that repair, a lot of it due to the s/a being a jerk, but as my buddy recounted ‘I work on cars because I like working on cars, I don’t like troubleshooting computer networks and that’s more and more of my job’

Power wise, I’m sure there’s more in the motor, but the trouble is that not all of the necessary parameters are being updated to accommodate the changes that deliver the increased power. The computer senses values out of range and does what it’s programmed to do - throw a fault.

 

[Donovan]

@smurfslayer you said a lot. I read it.

 

[magaraptor]

Well my trucks been at Ford for two days with those misfire codes they replace the cam phasers two months ago they said they’re going to have to be replaced again

 

[Donovan]

How sway? From a damn misfire? I assume you removed the tune prior ot going in the dealer?

 

[magaraptor]

I took the tune off of it before they did the first camphaser replacement two months ago

 

[NHbeast]

FWIW
Had a popping sound, from the exhaust, this morning I'd never had before.
I was cold this morning, 15 degrees.
Truck had not been warmed up long, still at fast idle.
All down hill ,3/4 of a mile, in 3rd gear while engine braking. (25 mph)
Pop... pop... pop.
Never happened before.
I attribute it to cold engine, cold air, and the engine braking.

 

[TwizzleStix]

As far as the problem of Raptor engines shutting down....Ford won't tell you about.
But the dealer parts dept has a single fuse with wires for about $25 to double the size of the existing undersized fuse that runs to your fuel pump. It doesn't seem to burn out ... but rather heats up from lack of size ... and separates contact till it cools down. The pump shuts off temporarily. Even at 80 mph on the highway! Replace that one fuse in the fusebox over the radiator, and you’ll never hear from it again.

Gen 1 problem, not Gen 2

 

[smurfslayer]

Gen 1 problem, not Gen 2

Wait, what? Gen1 trucks 2010-2014 were sold without warranty because nobody ever needed one. I read right here on FRF that the Jennifer simply never had any problems.

surely, you jest.