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#8 Misfire

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Old Jul 16, 2020 | 10:27 AM
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#8 Misfire

i have changed the coils and spark plugs and i still get the misfire about every three to four days any ideas what else i should change i do plan on doing the injectors just asking first thanks.
 
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Old Jul 16, 2020 | 01:02 PM
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4.6L 2V? 4.6L 3V? 5.0L? 5.4L? 6.2L?

Rather than playing 20 questions ...

HINT/TIP: Put your vehicle information (year, model, cab, trim, engine, wheelbase, _x4 drive, mileage, modifications, etc., etc.) in your signature -OR- provide it in your posting(s).
.

 
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Old Jul 16, 2020 | 01:42 PM
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Originally Posted by gDMJoe
4.6L 2V? 4.6L 3V? 5.0L? 5.4L? 6.2L?

Rather than playing 20 questions ...

HINT/TIP: Put your vehicle information (year, model, cab, trim, engine, wheelbase, _x4 drive, mileage, modifications, etc., etc.) in your signature -OR- provide it in your posting(s).
.
sorry about that 2013 f150 5.0L
 
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Old Jul 17, 2020 | 09:02 AM
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Originally Posted by DuaneB50
i have changed the coils and spark plugs and i still get the misfire about every three to four days any ideas what else i should change i do plan on doing the injectors just asking first thanks.
First things first, do a compression test on the #8 cylinder to make sure it is mechanically sound.
 
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Old Jul 17, 2020 | 09:19 AM
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i will get that then report back.
 
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