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Old 03-25-2007, 11:09 AM
Junior Member
Join Date: Mar 2007
Posts: 4
Default 2005 F350 V10 problem

I just bought 2005 F350 2 months ago. Ran great til it had a bad hesitation and low power. Engine light then came on. Checked code--something about a misfire. Cleared the code, light was back on before I got back home from parts store. Took it to the dealer, they replaced the fuel pump under warranty, also replaced the fuel filter. Now the hesitation is back and light is back on. Truck has 8100 miles on it and all I've done is change oil and put a K&N filter in it. Anybody have the same problem? what was the fix?
super f350
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Old 03-26-2007, 01:40 PM
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Join Date: Feb 2007
Posts: 1,106
Default RE: 2005 F350 V10 problem

Maybe try a new set of spark plugs.
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Old 11-04-2011, 04:01 PM
Senior Member
Join Date: Jun 2007
Posts: 138

Misfire to me means a bad coil or plug, but generally a bad coil pack. But with so little miles on it?
F350 2005 FX4 5.4 rc 4x4 w/fisher plow
1970 John Deere 112
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Old 11-04-2011, 07:41 PM
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Join Date: Sep 2011
Location: Thunder Bay, ON, Canada
Posts: 161

Originally Posted by FordNutz View Post
Misfire to me means a bad coil or plug, but generally a bad coil pack. But with so little miles on it?
I've been struggling for over a month now with a similar problem. Tonight I think I got to the bottom of it - I replaced the spark plug cables, and the stutter went away. Since your car is new, your problem may not necessarily be related to wear (as it was in my case), but I would still replace the cables and the coil packs (in this order because of their price tags ...) This should be covered under warranty, so you may even not need to pay a thing ...

HTH ...
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Old 11-04-2011, 09:44 PM
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Join Date: May 2011
Location: Colorado, near Denver
Posts: 670

This car uses COP (coil on plug), so go to the specific clyinder. For example, a P030x means "misfire in clyinder x". And don't worry, this is a OBDII code, which means there are up to like 16 clyinders that could be missing. Once you locate the specific clyinder, then do a base compression check to make sure the compression is where it should be, then possibly check the fuel injector (it should be clicking rhymically, easily heard with a stethoscope). Take a look at the plug; How does it look? If soaked in gas, look at the injector to be stuck on. If coated w/oil, then go deep into the engine.
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Old 11-04-2011, 09:44 PM

2005, 350, code, engine, f350, f450, fix, ford, fuel, issues, problems, pump, trouble, u0100, v10

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