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Valve Spring Came Off, Valve Stem Stuck Closed Position
Update: For those that might run into a similar situation. 1. Followed the advice to borescope into cylinder to check for damage. None observed on both the piston head as well as all 3 valve caps. 2. Performed leak down test after removing the remaining two rocker arms(followers) and no...- mderosa3
- Post #9
- Forum: 3rd Gen - 2007 - 2017
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Valve Spring Came Off, Valve Stem Stuck Closed Position
Very valid concern Dave. The fact the valve is fully in closed position is interesting but not being able to move under normal pressure without spring leads me to believe its either bent, extensive carbon build up, and or seal failure. I'm leaning towards bent but will try Joe and Glenns...- mderosa3
- Post #7
- Forum: 3rd Gen - 2007 - 2017
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Valve Spring Came Off, Valve Stem Stuck Closed Position
Thanks Jamaica Joe and Glenn for the replies and suggestions. I took a look yesterday using an older borescope camera with not so great lighting. Everything looked good as far as I could tell. Might look at renting a better camera today and take one more look before attempting your suggestions...- mderosa3
- Post #5
- Forum: 3rd Gen - 2007 - 2017
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Valve Spring Came Off, Valve Stem Stuck Closed Position
Good afternoon 2011 Ford Expedition King Ranch 208K miles. So after having miss fires on passenger side cylinders and random rich mixture codes, I decided it was time to take off the valve cover and inspect. This is the first time the valve cover has been off this engine and the engine has...- mderosa3
- Thread
- Replies: 9
- Forum: 3rd Gen - 2007 - 2017
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Slight rough Idle and at 1000 RPM with a little gas
Thanks for the reply. I replaced it after engine light and P0345 code. I have a forscan and can take a look at live data. Anything specific I can look at to check timing/pressure issues?- mderosa3
- Post #3
- Forum: 3rd Gen - 2007 - 2017
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Slight rough Idle and at 1000 RPM with a little gas
Hello All I've searched the forums and came across alot of discussion on rough idle but nothing that matches my symptoms. 2011 Ford Expedition 5.4L 205K miles. No codes other than P1000 (Emission Controls test). I purchased the car new and have accomplished all the maintenance for the past 7...- mderosa3
- Thread
- Replies: 2
- Forum: 3rd Gen - 2007 - 2017
