check the radiator fan speed sometimes it the fan motor when heats up decrerase the speed...just a point am telling you..
1 shop i can tell you they are good and fast..if u on cinema signals going to mall roundabout just continue straight from mall roundabout till the next roundabout...b4 heading to roundabout on you right side the is a petrol station and the shop is there..
they will do computer checkup for you and tell you the problem and they are fast..

TIME CHANGES EVERYTHING