Hi, new member to the club, and have searched the forums with no help to this specific situation, I have an 05 manual 46000 miles, the engine did poorly on a compression test, the mazda dealership is willing to cover the costs to replace the engine, but they say i have to pay a fee of $365 to decarbonize the FIS, Ind, and T-body before any work on the engine can begin. Is this covered under the extended warranty? Is this strange, and if this isn't covered can this be done somewhere outside of the dealership for cheaper? Also, they said the coils, motor mounts, and wires need to be replaced as well. Are any of these items covered under the warranty?

 

The short answer is no; there are several threads on this topic, please search them out to answer your questions.

 

So many informations about engines on this site, so read on...