I had mine done a few weeks back, and apparently I'm the lucky one because I haven't had any issues - it currently runs and drives just the same as it did before.

Worth noting that they did mine a few weeks ago, but my letter just came in the mail late last week.

 

Another likely case of hose clamp deterioration.

Uh oh! After all the snarky comments I've written, kharma says I'm 50/50 that it happens to me...

 

I can not make this stuff up. Well as I said, had the recall done a week or so back (they just did it as part of a bigger service) and subsequently had the idle issues with the check engine light coming on a few days later. Scheduled the truck for service for today but yesterday afternoon the check engine light went off and truck is running great now. Still no check engine light.
Now what should I do. From past experience I can almost guarantee that if I take it in the diagnosis will be "No Fault Found"

 

Between this thread and the other Recall related thread, I’ve seen multiple posters who have related getting their Defender back after the recall action, replacing the PCV valve, only to find the vehicle running worse than before they brought it in. I’m getting very wary of handing my Defender over to the dealer. Something isn’t right when the ‘fix’ creates a problem. I’m monitoring this issue carefully before I move forward. Anyone with similar issues, please keep our Defender community informed.

 

I just assumed you were replacing all of them with these:

Titanium Hose Clamps

 

Campaign N627 done today by my local dealer. No issues afterwards on my end.

 

A CEL can go out without a trip to the dealer if the problem is fixed.