Hello all,

Firstly I'd like to introduce myself as an ex Chassis design/development engineer who worked for Jag for 30 years including many overseas development testing on X100, X200, X350, X150, X351, X760 & X761.

Now, my issue is that I have bought a 2005 (built late 2004) XK8 4.2 which takes forever to restart once it has been initially started and run for a while. The car runs perfectly, backed up by the fact I bought it in Yorkshire and drove it all the way back to Dorset with no issues.

Looking on the 'net' has shown that this long crank/flooding restart issue is common place, however, we never experienced this at the factory, even on cars that had covered 100K miles or more. This leads me to believe that this must be an age, not mileage, related issue.

According to the many accounts I have read on the 'net, owners have tried all sorts to alleviate this issue but there doesn't seem to be a definitive solution to the issue. I can't believe that, after all this time, there isn't a well known single point failure for the problem.

I'd like to ask, rather than discussing the issue, if there is a known successful fix for this issue?

Many thanks,

 

Mark

Hi Mark, did you ever find the cause of this fault?

Crank sensor possibly?

H Trevor,

No, not really. Trouble is that I haven't really driven it since before the fuel shortage debacle so it has sat in the garage for weeks.

I recently spoke to a chap who was a service engineer at a Jag main dealer who said the early 4 litres would flood all the time and they would have to remove the fuel pump fuse and crank away until they could put the fuse back in a fire up. However, he did say he hadnt heard of a 4.2 doing this?

I will get to the bottom of it but it may have to wait until the Spring now

 

Cheers