I assume your 'Tour has the Zetec (4-cylinder) engine. If so, Technical Service Bulletin (TSB) 99-13-8 may apply to you.

Strictly speaking, if you tell your Service Department you have P1383, they should find this TSB on their own, but it would probably be wise to "help" them find it.

//> //> //> //> //> Garrick 2006 Mazda6 Grand Sport wagon, silver, MTX I'll never forget you: Silver E0, #3895 of 6535, built 10/2/97