Hello Everyone, This is my 1st post and I am NOT a mechanic but do have the capacity to learn. I have a 2012 4x4 6.7, 155k miles, EGR replaced last year, good maintenance on fuel and oil. The following is explained the best way I can.
Truck begin showing symptoms of a miss. Intermittently sometimes worse than other times. Took it to a Ford repair shop, we are limited on adequate diesel repair shops in my area. I had gotten a random P0206 code by just checking my code reader, and explained it to the dealership when we took it in. THEIR software and "experts" said they couldn't get a #6 injector error code but did on #7. Silly and naive me, trusted their findings over mine and #7 was replaced. No improvement, Then they said #6 was bad due to #2 overcompensating and changed #6 and 2 new fuel filters. $2500 in repairs and NO CHANGE OR IMPROVEMENT. PCM was allegedly tested and showed good. Ford experts suggested it was a valve train issue. I was furious at their approach of "throw parts at it" and disappointed in their services so I brought her home.
Let me add, the entire time this truck has run poorly, there have been no CEL, excess smoke, and sometimes she runs and sounds absolutely amazing. What I do have is intermittent missing, an occasional "freeze" of rpms at about 2k, terrible mph, rough idle, and then it seems the truck "fixes" itself and it sounds perfect, shifts great, jumps to 3000rpm and 85 mph with no issues and then10 minutes or 4 hours later, sounds like garbage again. This mystery machine is giving me the blues and I need a direction to look in.
Truck begin showing symptoms of a miss. Intermittently sometimes worse than other times. Took it to a Ford repair shop, we are limited on adequate diesel repair shops in my area. I had gotten a random P0206 code by just checking my code reader, and explained it to the dealership when we took it in. THEIR software and "experts" said they couldn't get a #6 injector error code but did on #7. Silly and naive me, trusted their findings over mine and #7 was replaced. No improvement, Then they said #6 was bad due to #2 overcompensating and changed #6 and 2 new fuel filters. $2500 in repairs and NO CHANGE OR IMPROVEMENT. PCM was allegedly tested and showed good. Ford experts suggested it was a valve train issue. I was furious at their approach of "throw parts at it" and disappointed in their services so I brought her home.
Let me add, the entire time this truck has run poorly, there have been no CEL, excess smoke, and sometimes she runs and sounds absolutely amazing. What I do have is intermittent missing, an occasional "freeze" of rpms at about 2k, terrible mph, rough idle, and then it seems the truck "fixes" itself and it sounds perfect, shifts great, jumps to 3000rpm and 85 mph with no issues and then10 minutes or 4 hours later, sounds like garbage again. This mystery machine is giving me the blues and I need a direction to look in.
