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I am having problems getting my 04 F150 5.4 trition (165,248 miles) up and running. For a couple of months when i would take my foot off the gas pedal and the rpms would go below 2k, the engine would start sputtering, if I rev it quickly above 2k it would stop the sputtering and work normal until next time. A month ago I took it in for a diagnostic, it was throwing the code that the camshaft positioning sensor needed to be replaced. I made an appointment with shop to replace sensor but they wanted to do further diagnostics and said the sensor was fine it was something else, but that it might need to be flushed because some sludge might have been blocking Variable value timing. I had the engine flushed and it worked fine the rest of the night, next day it was back to doing the same thing. About 2.5 weeks ago it died. Now the engine was turning but not firing. I could hear the fuel pump turn on, I replaced the fuel filter, cleaned battery cables tried starting it and it was sounding worst, I then noticed, I had smoke coming out of air filter compartment and now the engine wont turn over. Any Advice?
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you could spray some starting fluid down the intake to see if its fuel related. if it starts its fuel if not spark.
if the cps is bad that would be your spark. first you need to check for spark. heres a good video to get you started C8-)
Before the truck died. did you hear any noise like chains slapping or banging?http://www.youtube.com/watch?v=FBUYs539 … plpp_video no start
it sounds like you need a valve timing! but again as the other guy said, do the basics diagnosing and work your way up.
Here’s a basic video on crank but no-start conditions. Start here bud:
http://www.youtube.com/watch?v=FBUYs539cy4
Let us know what you find. Good luck.
do you have any active codes? did the cam shaft sensor ever get replaced? post codes if you have anyC8-)
I don’t have the codes now or an OBDII reader. When I made the appointment to take truck in I was pretty specific about just getting the sensor replaced, priced the part and labor, I dropped it off and got a call later the day and the mechanic told me the sensor isn’t bad but he wanted to take the heads off it and do further diagnostics, he said at some point the engine had some kind of oil starvation and some sludge has built up and is probably plugging the VVT, I kind of felt like he was doing the bait and switch. I already had a diagnostic done which was why it was there. Once I picked it up I did an engine flush and it worked great for the rest of the night, but next day it started again.
I think you need to look at the basics.
Check for spark, fuel, compression, etc. One or more of those are mission and that’s causing the truck not to start. You need to find out which one and go from there.I think we’ve had this issue in the past but I wasn’t able to find the forum thread for it, I do however remember something about that engine having issues with sludge buildup causing issues with the sensors. I’d also like to add that if the engine is sludge up it could indicate excessive engine wear which could manifest as a stretched timing chain which might also set that code. You might want to start your search by looking for a mechanical cause but here is a video that I did on diagnosing a crank no start condition.
http://www.youtube.com/watch?v=FBUYs539cy4just wondering if you ever got this problem solved.
i have a 2004 F150 (104,000miles) and im having similar problems to you.
Codes:
P0022 – “A” Camshaft Position – Timing Over Retarded
P0300 – Random/Multiple Cylinder Misfires Detected
P0316 – Misfire Detected on Startup (First 1000 Revolutions)
P0307 – Cylinder 7 Misfire Detected
P0308 – Cylinder 8 Misfire Detectedmine started about 6 months ago after a roadside breakdown. the engine refused to turn over and it was assumed that the battery was the issue [battery was replaced], still no turn over. next we assumed that, due to a loss of oil pressure, that the oil pressure sensor had failed and the starter motor had gone bad [oil pressure sensor was replaced]. to jump the starter into life (no replacement part was available) we tried 12v direct to the starter motor where we saw a sign of life from the engine. we then tried 24v direct to the starter motor with no luck. the truck was then stored for 3 weeks while a relacement starter motor was shipped into the country.
[starter motor was replaced] engine still wouldnt turn over. after some deep thought we found the AC compressor had failed and was causing enough tension on the belt to stop the engine turning. [AC compressor was replaced] started the engine for the first time and the engine ran really rough and threw the above codes.
after alot of internet searching we also read about the poorly designed oil galleys in the 5.4 Triton engine and did a full flush plus additives in the oil to help clear the system, this didnt help. next we looked at the VVT system, changed cam sensors and cam phasers again with no luck.
after more internet searching and with a chat with a Ford Mechanic it turns out there is another cause for this which Ford wont admit to. it turns out that if the timing chain becomes lose, even for a split second, it is possible for the chain to “jump” a tooth on the cam shaft.
this can be fixed with a full retiming of the engine which is unfortunately a pricy job. however, i (and a few others in the internet world) have found that if you unplug the cam shaft sensors, and esentially disabling the VVT the truck will run just fine (with the odd misfire) and this is how ive been running mine for 6 months. other on the internet have been doing it for years.
Note: if you take the problem to Ford they will insist on replacing the engine.
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