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V10 misfire codes

This topic has been moved to another forum. You can read it here: 30282607
Paulson 09/23/21 12:12pm Forum Posting Help and Support
V10 misfire codes

We recently purchased a 2016 Fleetwood bounder with a Triton V10. On the way home on a 20 minute drive, the check engine light started flashing. Codes were P0300, P0302, and P0306. Since then on various test drives, it has popped all of the even numbered misfire codes 02 thru 10. It has never popped an odd numbered misfire code. Found out about a TSB, so took it to the Ford dealership to have the PCM software upgraded. However they informed me I already have the upgrade. We have replaced all 10 spark plugs and coils. I have checked the PCV valve hose for leaks. I have replaced the MAF. The check engine light will typically flash after having been under load, and then I back off on the Accelerator So after going up a hill, it will not flash until I take my foot off the gas, and then it will flash going down the hill. I am stumped, especially considering it only pops even numbered misfire codes. Any input would be appreciated!
Paulson 09/23/21 12:12pm Class A Motorhomes
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