Having intermittent starting problems

[kelvin52]

I bought my big cat less than a year ago, second hand, & now I have a problem starting, At first I tried 2 or 3 times & it would start but it`s slowly getting worse, Today it took 10 goes before it started.

Anyone else have this problem ?

My local Jag specialist says he`s come across loads like it & never got to the bottom of the problem.

Any help ?

[Guest]

Could this be a blocked fuel filter ?

[kelvin52]

Possibility, but as it`s intermittent I doubt it, when trying to start it shows the battery sign ?

 

[Jon Hyde]

Hi Kelvin,

I'm no expert, but I have been through the mill with XF issues!

I recently had something similar, but the car started, then declared a battery problem. Turned out to be a failed alternator (although the AA originally suggested a duff battery!).

It sounds like one or other of the above, hopefully battery - alternator c£700 to replace!

Cheers,

Jon

[Nicster]

Hi kelvin, my mechanic says that it's the fuel rail pump that goes faulty, apparently there is a valve that maintains the pressure n the common rail and eventually through age / wear the seal wear and intermittently the valve does not fully close allowing the fuel to slowly seep back to the tank, after a few cranks it builds up pressure and all is fine. The alternate is a leaking injector which cases the same situation.