Random Misfires

[RTRBURN]

I was told I have to put exhaust back to stock before they will look at it...So I will then SELL THE DAMN CAR! I am so done with this damn thing.
They wont even look at the damn thing until then.

 

[chuck@evoperform]

Didn't think of this before, but the crank sensor is now located at the back of the engine, so I wonder if the trigger ring or actual sensor was damaged while installing the flywheel. I don't remember, but I am pretty sure that it is keyed so that it cannot be installed out of position. I don't think that it would be too difficult to replace the sensor, but if the ring is damaged, it requires removing the trans, clutch and flywheel.

 

[beefcake]

we are going to do the relearn on my car once it's all back together.

i never even knew it had such a thing.

we installed new cams in the car, with new rings on the end. So, I gotta think that could def be part of my issue

it's more of an annoyance than anything, car runs fine

 

[RTRBURN]

Didn't think of this before, but the crank sensor is now located at the back of the engine, so I wonder if the trigger ring or actual sensor was damaged while installing the flywheel. I don't remember, but I am pretty sure that it is keyed so that it cannot be installed out of position. I don't think that it would be too difficult to replace the sensor, but if the ring is damaged, it requires removing the trans, clutch and flywheel.

Thats what Im thinking and telling them. They think its the exhaust blowing out the spark or telling it not to fire...I told them BS because if the computer told it not to fire it would not give a misfire on a cylinder that was not suppose to fire that time around. If it was exhaust causing it...it would be misfires across the damn board...not just 1 damn cylinder. And why did it run just find on the previous engine.

This isn't rock science, we have been using crank trigger systems for over 15 years. Then they even tried the "well we don't want to raise a big stink because Ford could void your warranty if they wanted to" phrase. So I am going to put the exhaust back stock and let them fix the M*)&)*& F)*)*)8R then ask them "I thought it was the damn exhaust" phrase on them. Its also a shame when a customer brings in TSB's and the Service Manager wasnt aware of any of them.

I'll keep you guys posted on the whole ordeal as it goes down.

 

[beefcake]

so, we tried to do the cam position sensor relearn last night.

car would not learn.........now i have a steady cel saying cam position not learned

 

[Falkinman]

Whatever happened with your car RTRBURN? My 2012 check engine light came on last night. I scanned it today and got a P0304 cyl 4 misfire. Just curious of this ever got fixed.

 

[Digital_Synapse]

SERVICE PROCEDURE
1. Reprogram the powertrain control module (PCM) to the latest calibration using IDS release 72.01 and higher. This new calibration is not included in the VCM 2011.3 DVD. Calibration files may also be obtained at the website. 2. A Misfire Monitor Neutral Profile Correction will need to be learned. Use the scan tool to perform the Misfire Monitor Neutral Profile Correction procedure. From the IDS toolbox select: ^ Powertrain ^ Service Functions ^ Misfire Monitor Neutral Profile Correction ^ Follow prompts NOTE PLEASE ADVISE THE CUSTOMER THAT THIS VEHICLE IS EQUIPPED WITH AN ADAPTIVE TRANSMISSION SHIFT STRATEGY WHICH ALLOWS THE VEHICLE'S COMPUTER TO LEARN THE TRANSMISSION'S UNIQUE PARAMETERS AND IMPROVE SHIFT QUALITY. WHEN THE ADAPTIVE STRATEGY IS RESET, THE COMPUTER WILL BEGIN A RE-LEARNING PROCESS. THIS RE-LEARNING PROCESS MAY RESULT IN FIRMER THAN NORMAL UPSHIFTS AND DOWNSHIFTS FOR SEVERAL DAYS. WARRANTY STATUS: Eligible Under Provisions Of New Vehicle Limited Warranty Coverage And Emissions Warranty Coverage
IMPORTANT : Warranty coverage limits/policies are not altered by a TSB. Warranty coverage limits are determined by the identified causal part.

does this disable the abilit to load a tune back on?

 

[BAKnBLK2010]

does this disable the abilit to load a tune back on?

No.....

 

[stang389]

IDS level is at 77.06 now

 

[SilverS197]

Mine is still doing it , shit is annoying ! I did find that when I start my car , if I let it warm up and let the Rpms settle down before I take off it barely ever throws the code or limp mode.

Seems like this happened to allot of us after having our engines replaced!

 

[Cbaty08]

I had mis-fires two different times; BOTH times it was because the dealer FORGOT to do a relearn process to 'marry' the engine tranny.

I'd make sure that was done, and if not.. go in and have it done.

 

[stang389]

it doesnt marry the engine and trans- it is to let the pcm relearn the CKP (crank position sensor) sensor.