What is your question?
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What is your question?
Cel came on a day after I purchased a yr later almost dealership still trying to fix p0303 code. Anyone else have this issue?
What makes this problem better or worse?
When it's cold or after it's driven long distance
How long has your 2012 Ford Expedition had this problem?
11 months
1 Reply
Hello, it's a misfire of cylinder 3 that is being noted. This is most likely due to a spark plug or coil or coil boot issue. I'd recommend replacing all 8 plugs and all 8 coil boots, and perhaps #3 coil. Then recheck operation. If the concern remains -- using FORD PARTS ONLY FROM A DEALERSHIP -- then perform further testing, such as a base engine compression and cylinder leak down test. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops