5.4 brutal problems
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New User
Joined: Mar 2013
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5.4 brutal problems
Well I bit the bullet and had my phasers replaced along with a seal that spit out (a common problem with the 5.4)
Now my truck has a rough idle with the needle bouncing. At 1100 rpm the truck literally shakes as if the timing was pooched. When my truck warms up to operating temperatures there is no more problems. My battery light is coming on and off which I find interesting considering it is brand new.
I also had my spark plugs changed at the time...
I'm curious to know if this is a cap on coil problem as I heard that they can throw off a radio frequency tripping sensors.
It is throwing the engine light but havent taken the truck back to the Ford dealership. After a $3800 dollar repair, I'm a little miffed that they did a poor job and I'm a little hesitant on taking it back until I can more of a scope around what could be the problem.
Any insight would greatly be appreciated!
Now my truck has a rough idle with the needle bouncing. At 1100 rpm the truck literally shakes as if the timing was pooched. When my truck warms up to operating temperatures there is no more problems. My battery light is coming on and off which I find interesting considering it is brand new.
I also had my spark plugs changed at the time...
I'm curious to know if this is a cap on coil problem as I heard that they can throw off a radio frequency tripping sensors.
It is throwing the engine light but havent taken the truck back to the Ford dealership. After a $3800 dollar repair, I'm a little miffed that they did a poor job and I'm a little hesitant on taking it back until I can more of a scope around what could be the problem.
Any insight would greatly be appreciated!
Elder User
Joined: Apr 2010
Posts: 687
Likes: 1
Well I bit the bullet and had my phasers replaced along with a seal that spit out (a common problem with the 5.4)
Now my truck has a rough idle with the needle bouncing. At 1100 rpm the truck literally shakes as if the timing was pooched. When my truck warms up to operating temperatures there is no more problems. My battery light is coming on and off which I find interesting considering it is brand new.
I also had my spark plugs changed at the time...
I'm curious to know if this is a cap on coil problem as I heard that they can throw off a radio frequency tripping sensors.
It is throwing the engine light but havent taken the truck back to the Ford dealership. After a $3800 dollar repair, I'm a little miffed that they did a poor job and I'm a little hesitant on taking it back until I can more of a scope around what could be the problem.
Any insight would greatly be appreciated!
Now my truck has a rough idle with the needle bouncing. At 1100 rpm the truck literally shakes as if the timing was pooched. When my truck warms up to operating temperatures there is no more problems. My battery light is coming on and off which I find interesting considering it is brand new.
I also had my spark plugs changed at the time...
I'm curious to know if this is a cap on coil problem as I heard that they can throw off a radio frequency tripping sensors.
It is throwing the engine light but havent taken the truck back to the Ford dealership. After a $3800 dollar repair, I'm a little miffed that they did a poor job and I'm a little hesitant on taking it back until I can more of a scope around what could be the problem.
Any insight would greatly be appreciated!
Junior User
Joined: Feb 2013
Posts: 96
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From: Manahawkin, nj
I would definitely bring it back to them. Have them clean the mass airflow sensor and the throttle body ( although these are really easy to do yourself ). It could be a sensor or the fuel pump driver module, it can be all kinds of stuff. They did the plugs, did they replace the cops? Maybe check The plugs make sure everything is tight. It's kind of strange that the rough idle is when the engine is cold. That replaced the phasers did that fix your ticking sound? I have a slight ticking sound not as bad as others and I'm not sure what to do about it yet, my truck is running great right now I may do a full seafoam flush. Anyway hope your problem gets fixed easily and swiftly without having to spend much more money. Good luck keep us informed.
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New User
Joined: Mar 2013
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I would definitely bring it back to them. Have them clean the mass airflow sensor and the throttle body ( although these are really easy to do yourself ). It could be a sensor or the fuel pump driver module, it can be all kinds of stuff. They did the plugs, did they replace the cops? Maybe check The plugs make sure everything is tight. It's kind of strange that the rough idle is when the engine is cold. That replaced the phasers did that fix your ticking sound? I have a slight ticking sound not as bad as others and I'm not sure what to do about it yet, my truck is running great right now I may do a full seafoam flush. Anyway hope your problem gets fixed easily and swiftly without having to spend much more money. Good luck keep us informed.
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