Originally Posted by plgalleg

My 2004 f150 would misfire at around 45 mph, Stall when coming to stops after engine was warm, idle rough after engine was warm and sometimes shake real bad at idle. Ran diagnostics and only gave code p0022. During the past year the rough idle and the shake did occur several times but turning off the engine and turning it back on would clear the problem. But as time went on all those problems up above seem to get worst. First thing I did was replace the the vct solenoid on bank 2 since the code indicated it was on bank 2 and had an oil change done by Wal-Mart(mistake). Problems still present and appeared to even get worse. Replaced both cam shaft sensors and still no improvement. During 1 drive cycle did get a cylinder 8 misfire. So I replaced all spark plugs, boots and that coil on cylinder 8. This fixed the missing at 45 mph. Pulled throttle body off and cleaned it as well as the TPS and this fixed the stalling when coming to the stop. So I still have the p0022 code and rough idle. Doing some thinking and researching these blogs I came to the conclusion I have an oil pressure issue. Many people have gone to the dealers and they tell them the cam phasers are bad. I don’t think my cam phaser is bad but time will tell. I removed my vct solenoid and noticed some oil sludge built up in that vct body. I carefully cleaned it with some long q-tips and pored some seafoam in this area. Immediately changed the oil and oil filter with a motorcraft filter and oil. Started to notice an improvement on the rough idle and p0022 was cleared. The code and rough idle does come back but less frequently and seems to be improving the more I drive. I’ll keep you informed of the results. If you take okk the vct solenoid besure and get the seal first from the dealer for about $7. Its hard to take off and will probably get damaged. It’s sad that I can’t use an aftermarket oil filter and need to make sure my oil change is done at 3000 miles. I should have bought tundra. My Tacoma has 170,000 miles and I probably go about 7000 miles between oil changes and have had only the starter go out on this truck.

Originally Posted by Uncle Buddy

Hey All,,, I'm new here and just purchased a 04 Lariat 4X4 Love it but started having the same problems this week. Run rough after warm up ,rough idle & die if I don't touch gas a little. Spent over $300 on Diagnostics this week at 3 mechanics and got 3 diff. opinions ! 2 of them say P oo22 error code and want about $3000 to fix it. Ford Dealership charged $85 for diagnostics and said Alternator was not putting out right and spiking causing computer to freak out ! Got a new alt. and gonna put it on Sat. before I change out VCT on bank 2 / passanger side ? The Ford Tech I talked to said they had just got a letter from Ford about the Tritrons having this problem of flucuating alt. current.

Originally Posted by Uncle Buddy

Im having same problems with 04 Lariat 5.4 ! Making me crazy ! Did you get yours lined out ? What was problem ?
Thanks ,,, Buddy

Originally Posted by Voyager5974

I was having lots of problems with driver side codes PO0345, PO0349' PO022 and a couple of others. tried switching sensors and solenoids driver side with passenger side with no change. my 5.4 would run good while driving but when trying to park and make low rpm maneuvers it would run rough and sometimes stall. I found a blog that talked about changing the oil to 15W40 the oil used in diesels, and it worked, no more problems. that was a month ago. The actual cause of all the problems is the oil pressure drops to low at idle and will not advance the cam shaft for low rpm speed, causing a miss diagnosed problem of the cam timing being out by one tooth. The test for this problem is a short rev of the engine about 1500 rpms rill push the cam back in time until you try to maneuver again and it gets retarded. hope this helps all others with this problem in the future, I will be reducing to a slightly thinner oil before winter and keep reducing at each oil change until I find a happy medium. PS I tried the seafoam with minor results

Originally Posted by Voyager5974

the problem returned and has been on going for some time. ran flush after flush, sludge reducers, slick 50... then this past weekend I went under the hood checking for bad wires and connectors, what I found was a single wire connector for what I believe is a noise filter. The plug was dirty and green, I cleaned it, reset the codes and it has been ok for 3 days so far. there are two of these, one for each bank. the one I had trouble with was bank 2 the drivers side. It is bolted to the front of the engine behind the power steering pump fluid holder bracket and plugs in next to the holder. If this is the cause, I believe it may have been allowing noise it travel back to the computer causing miss information! only time will tell

Originally Posted by drolloff

i have a 04 that is running great when it first starts up and at highway speeds, but after its warm and i come to a stop it starts running really rough and will even die on me if i dont give it gas. brought it to a mechanic that i mostly trust, he said its because of sludge build up clogging something. We're running sea-foam through it right now, and if that doesnt clear it up, he wants to run transmission fluid through it. If all that fails he suggested a new engine, ford dealership agrees with that, but if it runs next to perfect at cold and highway speeds why cant this be fixed. The codes i've pulled are: P0345 Camshaft position sensor A circuit bank 2. and P0022 intake camshaft position timing over retarded bank 2
Thought about replacing cam position sensor and/or vct solenoid. any suggestions?

Originally Posted by Uncle Buddy

Hey All,,, I'm new here and just purchased a 04 Lariat 4X4 Love it but started having the same problems this week. Run rough after warm up ,rough idle & die if I don't touch gas a little. Spent over $300 on Diagnostics this week at 3 mechanics and got 3 diff. opinions ! 2 of them say P oo22 error code and want about $3000 to fix it. Ford Dealership charged $85 for diagnostics and said Alternator was not putting out right and spiking causing computer to freak out ! Got a new alt. and gonna put it on Sat. before I change out VCT on bank 2 / passanger side ? The Ford Tech I talked to said they had just got a letter from Ford about the Tritrons having this problem of flucuating alt. current.