Hi. Can anyone help!! My freelander td4 2002 has started to miss fire on start up. Sometimes she starts right up then other times takes 1 or 2 goes then starts up, she runs superb once started. Engine perfect plenty of power. had it to sure start in Doncaster they can't find anything wrong. Changed the glow plugs still doing it, It's starting to worry me just wondered if anyone had any advice please??ive owned it for the last 12 years and it's been well looked after and regularly serviced. Many thanks.