full throttle stumble
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Senior Member
Joined: Nov 2005
Posts: 120
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From: Fletcher Ohio
full throttle stumble
So my 05 f-150 is having a pretty bad stumble and has a hard time getting above 3000 rpm. for said coil and plug but its still doing it. anyone have any ideas?
Senior Member
Joined: Dec 2004
Posts: 2,155
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From: Indiana
what?????
How many miles since your last fuel filter change??? Perhaps on high RPM you can't get enough fuel to the engine because the fuel filter is clogged up.
If changing the fuel filter doesn't fix it, perhaps your fuel pump isn't giving enough pressure??? Can you find someone with a scanner that can read out fuel pressure? (I'm pretty sure its one of the possible gauges on my Edge)
How many miles since your last fuel filter change??? Perhaps on high RPM you can't get enough fuel to the engine because the fuel filter is clogged up.
If changing the fuel filter doesn't fix it, perhaps your fuel pump isn't giving enough pressure??? Can you find someone with a scanner that can read out fuel pressure? (I'm pretty sure its one of the possible gauges on my Edge)
Senior Member
Joined: Jul 2008
Posts: 427
Likes: 0
From: Gainesville, FL
my 05 was doing the same thing. it ended up being the fuel pump. i took it to ford under warranty and the tech did a ride along with a scanner and noticed the drop when it stumbled. problem solved.