Hi !
I resently dropped my 2002 GU 4.2 in a bug hole and got the cold start timer wet. The pre heat light kept going on and off on my way home. Then hard to start for the next 4 days. Got a new timer fitted. (After market). Car was ok for two days but this morning it struggled to start, ran rough and blow white smoke until it warmed up.
Is this a possible glow plug fail ??