I was told by my Jaguar dealership that it can be either "a clogged breather tube can cause that to happen, but it can also be an issue with the throttle body."
The Jaguar V12 engine was in production from 1971 to 1997. The V12 was only Jaguar's second engine to go into production. It was followed up with the Jaguar AJ-V8.
The 2009 Jaguar XK has a V8 engine.
The 2010 Jaguar XK has a V8 engine.
The 2009 Jaguar XF has a V8 engine.
The 2011 Jaguar XK has a V8 engine.
The 2013 Jaguar XJ has a V6 engine.
The 2012 Jaguar XJ has a V8 engine.
The 2009 Jaguar XJ has a V8 engine.
The 2013 Jaguar XK has a V8 engine.
The 2015 Jaguar XK has a V8 engine.
The 2012 Jaguar XK has a V8 engine.
The 2010 Jaguar XF has a V8 engine.