05 Expedition Sputtering while driving
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05 Expedition Sputtering while driving
I have an 05 Expedition 5.3 2wd. It seems to be missing when driving but idles fine. I'm not getting any warning lights either. Haven't had a chance to plug in a reader yet but wanted to see if any of you have had this issue. This is my wife's daily driver and she describes it as jumping and hesitating when she gets on the gas. Any help would be great.
Fleet Owner
Joined: Apr 2008
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From: 0,0,1
Swapping them one at time with a known good one, then going for a drive to see if it drives any different. Obviously if there are 2 or more misfiring, it get more difficult to feel if it's driving better because it won't drive perfect unless all the misfires are gone.
Postmaster
Joined: Sep 2010
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From: Southern Cal
If it seems to idle fine, but misses on heavy accelerating, I doesn't sound like a COP misfire but rather a fuel supply issue.
How many miles on it? Last fuel filter change?
Ever change the fuel pump?
If not, maybe test the fuel pressure at the rails first?
How many miles on it? Last fuel filter change?
Ever change the fuel pump?
If not, maybe test the fuel pressure at the rails first?
Postmaster
Joined: Sep 2010
Posts: 3,472
Likes: 2
From: Southern Cal
I his case, it sounded like she was really getting on the throttle. With your's, just "under little power" might be the difference to point a certain direction or another.
I've had fuel pumps start to go bad but could only tell when under full power when the system needed max fuel pressure.
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DOC1KOC1
1997 - 2006 Expedition & Navigator
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Oct 19, 2010 04:21 PM
