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Torque » Torque OBD ECU Scanner » Torque Discussion / Ideas » Ford v10 random misfires with a pattern

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Author Topic: Ford v10 random misfires with a pattern
Posts: 1
Post Ford v10 random misfires with a pattern
on: August 8, 2022 (GMT)

Hoping someone may have experienced a similar strange behavior checking cylinder misfires and could provide some explanation…

Following a break-down on my motorhome I started monitoring cylinder misfires and I’ve noticed a pattern to the random misfires. On three test drives about 60 miles I finished up with a test results scan to retrieve the misfire information. On all three tests I had 5 cylinders with misfire counts. Each test drive had a different 5 cylinder combination. In all three test drives the number of misfires was either 64 or 65, or a multiple of 65.. i.e.; 3 cylinders @ 65, 1 @ 130 and 1 @ 260. Or another test returned 2 cylinders @ 64 and 3 @ 129.

I’m beginning to wonder if there is an interference issue causing this. At no time do I “feel” the misfire.. all smooth running.

2003 Ford F53 motorhome chassis, 6.8 V10
BAFX bluetooth OBD2 scanner ~ Android tablet

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