engine car slowed to almost no movement

Hello, I’m Pete from the Car Genius team at RepairPal. I’m sorry you’re dealing with this concern on your Lincoln MKX. Based on the information provided with how the vehicle slowed way down to almost no movement and that your wrench warning light has come on this can indicate that one of the computers has detected the fault that is occurring and has set a fault code which in turn turned on the warning light. This type of concern can be caused by various different components with anything from something like a failing fuel pump, a transmission concern, brake concerns, electrical issues, etc. The best thing to do from here is to have the fault codes checked as there should be at least one code stored that will then need to be properly diagnosed to pinpoint the concern. This is something that is usually best to have checked into by a reputable repair facility that will have the tools needed to perform the testing so it can then be repaired properly from there. If you’d like to find a trusted, certified repair shop in your area, you can check here: https://repairpal.com/certified. If you need more advice, or have any further questions about your vehicle, we’re here to help. Just give us a call at 877-913-1554 where we will be happy to assist!