1st time I've heard such a problem water causing this type of problem anyway check/test the coolant temperature sensor and fuel pressure-start here and then let us know
July, 26, 2012 AT 10:41 PM
If you're having to put coolant/water in your resevoir then you are losing coolant/water somewhere. Sounds to me like a blown head gasket could be the culprit. It sounds like as the vehicle sits coolant is leaking into one of your cylinders, hence the low level in the resevoir and the rough start up. Run a compression test on all the cylinders, they should all be within 10psi of eachother.