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my 2010 F-150 5.4 L has developed a misfire.dont have the codes right now but can get them . replaced all plugs and 3 of the 8 cops.misfires right after startup but as it warms up tends to smooth out. when it is acting up it almost stalls out at stops.where to next
my 2010 F-150 5.4 L has developed a misfire.dont have the codes right now but can get them . replaced all plugs and 3 of the 8 cops.misfires right after startup but as it warms up tends to smooth out. when it is acting up it almost stalls out at stops.where to next
If you have a Check Engine Light on, that would be the first place I'd look.You may even need the other 5 COP's, possibly an injector issue.
thanx for the reply...will be trying injectors next..going to clear old codes and see what the new day brings!
I wouldn't clear the codes, but have a good diagnostic scan done to see what the problem is. You may end up spending hundreds by just changing things, and may only need just a few bucks spent on it to repair the problem.
09-06-2016, 11:42 AM
.You may even need the other 5 COP's, possibly an injector issue.
