We had this van in for a service all seemed ok. Customer says it wont start from cold now. If we spray a bit of easystart it goes every time. It seems to have a system with just a glow plug in the inlet with a fuel pipe connected to it. As far as we have checked the glow plug is heating up. I havent seen this type before. Are we barking up the wrong tree with this.there dosent seem to be any fault codes. Any help would be good. Thanks