Ford F-150 The entry level full size truck from Ford, one of America's best selling for decades.

08 f150 5.4 runs super rough

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Old Feb 7, 2022 | 04:53 PM
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cayden_start's Avatar
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Default 08 f150 5.4 runs super rough

My 08 f150 5.4 3 value is running super rough, shaking the entire cab and seems to have little to no power.
I had oriellys read the codes and the were
P0022 - Intake A Camshaft Position timing- over retarded (bank 2)
P0305 - cylinder 5 mis fire
P0316 - misfire within first 1000 revolutions
P01000 - Drive test cycle not complete
I replaced the cam and crank sensor, cylinder 5 plug and coil. And it stills runs like crap.
What am I missing?
 
Old Feb 7, 2022 | 07:59 PM
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Did replacing the sensors fix any codes?
Whats the vehicle mileage?
How often do you change the oil?
 
Old Feb 7, 2022 | 09:21 PM
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Originally Posted by scott.butler4
Did replacing the sensors fix any codes?
Whats the vehicle mileage?
How often do you change the oil?
Nothings changed
136k
About every 5-6k
 
Old Feb 8, 2022 | 06:34 AM
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If you have a scan tool with live data i would watch the cylinder misfire to check if only cylinder 5 is missing or if other cylinders are also missing.
Do you hear a loud ticking noise? Google 5.4 follower noise for a example of this noise.
Fords seem to run best on Motorcraft spark plugs and run worse on Bosch sparkplugs, other brands reliability are in between the two.
Based on the fault codes I would guess that the bank two phaser is bad, I would replace the phaser, the solenoid, all the followers and all the lifters on the passenger side. Of course if a follower has failed and ground a groove in a camshaft lobe also replace the camshaft.
 
Old Feb 8, 2022 | 10:38 AM
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Originally Posted by scott.butler4
If you have a scan tool with live data i would watch the cylinder misfire to check if only cylinder 5 is missing or if other cylinders are also missing.
Do you hear a loud ticking noise? Google 5.4 follower noise for a example of this noise.
Fords seem to run best on Motorcraft spark plugs and run worse on Bosch sparkplugs, other brands reliability are in between the two.
Based on the fault codes I would guess that the bank two phaser is bad, I would replace the phaser, the solenoid, all the followers and all the lifters on the passenger side. Of course if a follower has failed and ground a groove in a camshaft lobe also replace the camshaft.
Would the phasers make it shake more when it’s out into gear? It’s worse when it goes in drive or reverse. But it’s still not good in neutral or park.
 
Old Feb 8, 2022 | 02:00 PM
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On the driver's side bank , check the oil control solenoid for the cam phaser. Sounds like it may not be responding..
 
Old Feb 10, 2022 | 04:31 PM
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So I replaced all plugs, one coil, new fuel pump, driver module, filter, and fuse panel. I’m not sure what else could be causing it now. Maybe a clogged cat or a dirty throttle body?

 
Old Feb 10, 2022 | 07:56 PM
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We gave you multiple things to check, it sounds like you are ignoring these suggestions and want a easier repair.
Maybe you can give us a better idea of what diag you are willing to do.
 
Old Feb 10, 2022 | 08:57 PM
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Originally Posted by scott.butler4
We gave you multiple things to check, it sounds like you are ignoring these suggestions and want a easier repair.
Maybe you can give us a better idea of what diag you are willing to do.
well I don’t necessarily have the money to blow on a timing job, or the vtc job.
after messing with it a little more it stops shaking past about 1.5k rpms. So Im starting think it’s not a cam phaser issue.
I’m trying to steer clear of the bigger money jobs for right now
 
Old Feb 11, 2022 | 06:24 AM
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Apply power and ground to the correct pins on the oil solenoid in question, only do this for a second at a time, if its working there will be a noticable change in how the engine is running.

Remove the valve cover and inspect the phaser for damaged/bent teeth that the sensor uses and for visible oil gunk on it, inspect all the followers for looseness/wear and inspect the camshaft lobes for any grooving, look down into the timing chain as best you can and see if the plastic guides are intact and if the timing chain looks correct.

Both of these are fairly simple and the only things you should have to buy is a new valve cover gasket and a small tube of silicone.
 

Last edited by scott.butler4; Feb 11, 2022 at 06:28 AM.
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