I drove my jag about 100 miles on Saturday. Everything worked great and she's been running great for the past month always starting without hesitation. I went to start up the car on Sunday and it won't go. The starter works, battery is strong, plenty of gas but for some reason - it just won't start. Any suggestions as to where I should start?

Thanks!

 

Does plenty of gas mean the tank has gas or that you're getting gas to the engine? I'd be tempted to disconnect a fuel hose and pump some gas into a suitable container to check. If you are getting gas then check the spark. If you have both fuel and spark then it should start.

 

I always start with the 3 components of combustion. When you let on without cranking, do you hear the fuel pump kick on for a couple seconds? This tells you the ECU is alive and the fuel rail is probably charged.
if you have a timing light, you can clamp it around a spark plug wire to see if you have spark.
Do you have any codes?

 

Read this:

https://www.jaguarforums.com/forum/x...he-v12-178286/

Good luck.