Expylover
New Member
I have a 05 expedition with the 5.4 engine. It ran fine when I bought it, but when I took it in for an oil change I had them use Ams oil. It was previously running 50/50 synthetic. I knew who had it before plus I have the service records. After it got out of the shop it started throwing a check engine code for the camshaft positioning sensor for both banks. I replaced both sensors almost immediately, then it started throwing the same code again so I returned the sensors thinking they were defective and got new ones. It is still throwing the code and when I'm stopped at a red light sometimes it will start running extremely rough, the rpms drop to about 400 and every once in a while it will stall. I'm totally at a loss and any help will be extremely appreciated
