Mazda cx 9 runs and then shuts off after changing water pump

[alberto]

i need to know if somebody can help me on timing my mazda cx 9 chain. I change the water pump, and now the car runs really good until it gets to good antigel temperature then it just shuts off. I wonder if my timing chain tencioner if bad or my timing is a bit off? any body knows more about this? I took it to mazda and the only thing they told me is that the oil pressure is under normal values?
thanks I am looking for somebody who has done this job in the past, if you don't know about this please don't reply!