If you have a check engine light on you will want to start by scanning for codes. This could be clogged exhaust, a bad misfire a trans issue or a few other things.
Use this link to find a good shop near you.
https://repairpal.com/repair-shops
Alex
RepairPal Certified shops can diagnose and repair your 2004 Jaguar X-Type. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.