- Joined
- Dec 28, 2011
- Messages
- 5,436
Speaking of the 150 in my sig (5.4 3V). Mine only has 84k miles on it; bought it with 60k. I changed plugs and none broke. No problems with this truck ever. I knew the guy I bought it from and he was original owner. Always used PYB and Fram Ultra and 3k OCI. I moved to MC 5-20 and MC820 and doing 5k OCI now.
We all know about the potential cam phaser issues in the 5.4 04-06 years especially. Mine makes noise but its more like noisy injectors. This engine was never meant to be quiet. I did read a lot on the original spec of the VCT solenoid's not having the correct orifice size. So I figured I'd change them out and ake the chance to see what the top of the motor looked like.
With the covers off the top of the engine was sparkling clean and my chains on bot sides showed no slack at all, nice and tight. Changed out the VCT's and closed her back up.
It's been months and a few miles. Slight improvement (not much) in gas mileage, guessing that the VCT will effect the cam.
I'm wondering how many guys went through the entire cam phaser replacement without needing too. Ford dealer's all seem to throw out there replace cam phaser to any one who complains about a diesel sound. Often only to NOT remove the noise after the job is done.
I'm not saying the cam phaser issue on the 04-06 isn't real I'm thinking many of the repairs were probably net driven and not needed.
We all know about the potential cam phaser issues in the 5.4 04-06 years especially. Mine makes noise but its more like noisy injectors. This engine was never meant to be quiet. I did read a lot on the original spec of the VCT solenoid's not having the correct orifice size. So I figured I'd change them out and ake the chance to see what the top of the motor looked like.
With the covers off the top of the engine was sparkling clean and my chains on bot sides showed no slack at all, nice and tight. Changed out the VCT's and closed her back up.
It's been months and a few miles. Slight improvement (not much) in gas mileage, guessing that the VCT will effect the cam.
I'm wondering how many guys went through the entire cam phaser replacement without needing too. Ford dealer's all seem to throw out there replace cam phaser to any one who complains about a diesel sound. Often only to NOT remove the noise after the job is done.
I'm not saying the cam phaser issue on the 04-06 isn't real I'm thinking many of the repairs were probably net driven and not needed.
