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Random Limp Mode From Misfires

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arlisscm

arlisscm

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Thread Starter #21
Switchback said:
I haven’t seen any misfire CELs while banging on the car, and I can’t replicate it anymore by revving the engine up to 3k RPM. I get a few misfire counts during daily driving but that seems to be more or less expected with ecoboosts.

As for the video, I wouldn’t be surprised if it does need a crank relearn. I wonder, does the Ford tech manual state to do a crank relearn after a timing belt change?
Click to expand...
Good to know it hasn't cropped back up. Fingers crossed it goes the same for me.

Next time I'm in my laptop I'll see if the manual mentions the re-learn in the time belt, flywheel and/or other service instructions. Could be this weekend as my brother is having weird transmission shifting issues on his F-150, so I'm going to reset the transmissions learning with Forscan as the F150 community indicates that it can fix weird behavior on the 10 speeds. (+1 to my old 6 speed slushbox, haha)
 


scooter123

scooter123

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I am going to ask a very very obvious question. What is your Engine Temperature? Because, gee whiz, it really does matter. BTW, I mean the actual Engine Temperature, not the Thermostat. Because, golly gee, Thermostats can go bad.
 


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arlisscm

arlisscm

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Thread Starter #23
scooter123 said:
I am going to ask a very very obvious question. What is your Engine Temperature? Because, gee whiz, it really does matter. BTW, I mean the actual Engine Temperature, not the Thermostat. Because, golly gee, Thermostats can go bad.
Click to expand...
I was only watching misfires once at operating temp after swapping the parts and doing the re-learn. As for when it happened on track <205F as that's the highest I've seen on coolant all season. Oil max ~230-240F with new cooler.
 


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