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After having mine cleaned by a local shop, 20,000 miles later the unison ring stuck again. I decided to just replace it as I really think the i/s diameter of the new ring is slightly larger, knowing this has been a reoccurring issue for Ford.
You don't list your truck year in your profile, which would help, but here's my Ford parts I used on my 07, plus a Blue Spring fuel regulation kit.
With it apart, I'd spend the extra 150 bucks or so to avoid pulling it apart again soon.
After having mine cleaned by a local shop, 20,000 miles later the unison ring stuck again. I decided to just replace it as I really think the i/s diameter of the new ring is slightly larger, knowing this has been a reoccurring issue for Ford.
You don't list your truck year in your profile, which would help, but here's my Ford parts I used on my 07, plus a Blue Spring fuel regulation kit.
With it apart, I'd spend the extra 150 bucks or so to avoid pulling it apart again soon.
Might make that a project for this coming weekend. Thanks for the part numbers too, ill double check that everything lines up with my '06.
I was waiting for someone to suggest a few full throttle runs. No one has, so I will. I have PO299 at least 1 or 2 times a year. My fix is a steep uphill climb. Full throttle, repeat if needed. I have never cleaned my turbo. Spooling the turbo up to max rpms seems to work.
I was waiting for someone to suggest a few full throttle runs. No one has, so I will. I have PO299 at least 1 or 2 times a year. My fix is a steep uphill climb. Full throttle, repeat if needed. I have never cleaned my turbo. Spooling the turbo up to max rpms seems to work.
Oh come on, its no fun to go WOT... But if you really think I HAVE TO, then I guess I will :/
I was waiting for someone to suggest a few full throttle runs. No one has, so I will. I have PO299 at least 1 or 2 times a year. My fix is a steep uphill climb. Full throttle, repeat if needed. I have never cleaned my turbo. Spooling the turbo up to max rpms seems to work.
You will know when the unison ring is truly stuck. No throttle runs can help! Both times mine stuck, it took quite a bit of prying to get that ring loose. It wouldn't move without a couple of big screwdrivers to jimmy loose.
Your method might help if it's just starting to stick from lack of use, idling, or cold/hot cycles.
