Hi,
I'm new here. Recently purchased a 1998 XJ8. Started it today and it cranked right up however, there was a rhymic "thud and snap" sound that began about 10 seconds after startup. I immediatley turned the car off. The "Thud...Snap" sound reoccurs every 2 seconds or so. Any ideas?
Thanks!
Terry

 

Have the chain tensioners been replaced?

 

Tensioners have not been replaced yet. It is going to a local shop next week to have them replaced.

 

I would tow it (or push it) there. SERIOUSLY

 

What Sparenzap said!