Hi Guys n Gals, im a newbie on here. hope someone can shed some light on my problem, im in the United Kindom and own a 2006 diesel grand cherokee jeep, its a fantastic car i have owned for one year, its regularly serviced by dealer, its only done 95k, last winter first frosty morning would not startup, turns over nice and quickly but would not fire up, called out recovery, they checked battery etc, got it started using easy start spray down air intake, they said glow plugs could be problem !!!! since then i have had glow plugs done,a full service and changed 3 relays,changed a faulty hose on fuel filter, it was great for six to 8 months , now cold weather is starting , 3 times it has not started , only way to get it started is easy start down air intake when cold. Once it has been started it starts fine all day.?????? your thoughts please guys, the dealer doesnt seem to be able to sort it and i cant afford to keep going there. thanks in advance for any help or ideas, i absolutely love the car but this is a PROBLEM...