65comet

My 05 Expedition with 5.4 currently has a P0345 P0349. Seen hundreds of different forum posts with people pleading to know what anyone has done to resolve and no one ever comes back and says yes I solved it. I did a bunch of the necessary work before I got these codes recently. New cam phasers, new vct solenoids, new cam sensors, new plugs, dropped pan and cleaned oil pickup, filled with 5w30 instead of 5w20, hooked up oil pressure gauge and have great pressure, brand new battery, took it to Advance Auto and hooked it up to their charging system tester which said the battery is still good and alternator is good with low AC bleeding so the diodes are good. Followed wires back to PCM for sensor and they checked out ok. Swapped cam sensors and still same code. See no breaks or wear in any wires anywhere. My next step is to get an oscilloscope on the cam sensors to see if the cams are out of time with each other. I don't know how they could be unless the new phasers were manufactured slightly off (Dormans) because they absolutely were put on correctly. Other than the codes it is running perfectly with all the other work having been done. Don't need a smog test till next September, so I have a while to figure it out. But I definitely will post a solution if I find one.

BadFish523

@ 65comet The answer might be right in your post. "Dorman Phasers" they are pure crap and will not last. Im not saying that is 100% for sure your answer but anyone on here will tell you when you do timing work ONLY use Motorcraft phasers. Hope you can figure it out.

65comet

In my researching I found all the bad references to the Dorman phasers, that is why I mentioned the brand. Wish I had known before I put them in. I actually bought them two years ago when the Motorcraft were out of stock everywhere I checked. I did go with the latest Motorcraft vct's and plugs this Fall when I finally got around to doing the work.

adanvjr

Thanks.
Yes, I've seen posts of others having the same code (P0345, then P0349). However, all of them were reporting other issues of bad idling, bogging, hard starting, etc.

Mines, however, is running fine.

techrep

iTrader: (1)

If it was running fine.. you would have no DTC's I would replace the Camshaft position sensor on the drivers side bank B or at least pull it and clean it and check the wires...

F150Torqued

^^^ What he said.


AND - I hate to be the bearer of bad news, but at just over 200,000 miles I'm afraid the rough idle / chain slap / crappy running is just around the corner. 200K mi is not bad life for steel chains - and as they stretch, the slack is taken up by the tensioners (if they are working properly) and tensioner arms. Pushing all the slack out on one side results in a few degrees shift in the actual cam position relative to CKP. That, (as well as jumping a tooth in chain timing) will result in P0340 and 349. All this WILL ultimately lead to broken chain guides and the dreaded P0022 (over retarded) code.

So far you have done all the right things as suggested. And I would not discourage having the alternator and battery tested as @65comet suggested. Solenoids probably should be replaced too, but your codes are not necessarily pointing at phaser malfunction.

In an effort to expedite things and avoid more parts, you might Or have some put an oscilloscope on it to very CAM/TDC timing as @65comet suggested - or remove driver's side valve cover and see if there is a lot of chain slack.


BTW I note that @65comet did not mention replacing chains/guides either.

65comet

I think the biggest problem is that the bank 2 cam sensor is a catch all on the PCM for a myriad of other issue. Any electrical leakage anywhere else and it pops the P0345. Your alternator is putting out too much AC current, give a P0345. Your oil temp sensor has a short, give a P0345. Your #5 COP has a bad wire, give a P0345. And the list just goes on. Your two cam sensors are showing a slight out of sync, give a P0345. Why couldn't it give a code to say cam sensors are out of sync instead since it knows this and that is why it is giving a code? Just a little rant with the Ford engineers.

I'm still under 100,000 miles and the chains were very tight in getting the phasers back on. If I still have it for 50,000 more miles, then a complete change with oil pump.

adanvjr

Okay thanks. I'm praying it's not a major mechanical issue. If so, it'll be beyond my experience.

I've checked the alternator & battery with my multimeter while my son was revving the engine. Per Haynes tech manual recommendations, it's doing fine. But I'll remove it and take it to Oreilly for further testing.

If the alternator and battery are still good, I'll move on to replace the VCT solenoids. I'm assuming these from RockAuto will be the latest revisions?

https://www.rockauto.com/en/moreinfo...sn=351&jsn=351

https://www.rockauto.com/en/moreinfo...431304&jsn=348

adanvjr

Yeah, I've already replaced both Camshaft sensors. Same codes, no symptoms of bad idling, etc.

adanvjr

Took it to Oreilly to have both battery and alternator tested. Both tested good.

Going to order a VCT solenoid from Rockauto, since it's half price than the auto parts stores.

I'll give an update what happens then.

Again, thanks for yalls input.