Hi All, I have a 2004 VY Exec Series II, which has been a reliable car for the last few years. I recently took it up to the sunshine coast from Brisbane to Melany (about 80/90 klms), with no dramas. Temp usually sits a bit under half on the gauge (pretty standard?). Anyway on the drive up the mountain into Melany, there is a 2klm stretch that is a steep ascent. The engine was revving on between 2.5 to 3 grand for about a minute (if that) and the temp shoots almost into the red. (Right up to the 3/4 mark). Once I get to the top of the hill, after a short while the temp drops back down. The car then cruises back to Brissy sitting with the temp just under half. I have done the trip now 4 times and the same thing happens every time. I am concerned that either there are some blockages in the radiator, or that the thermostat / water pump are on the way out. I have noticed that there seems to be more than your average amount of condensation dripping from the bottom of the car when I park it after having the aircon on, so wondering if that is the water pump? I am a bit of novice when it comes to diy's, so just wondering if anyone out there can give me any advice as how to diagnose the problem. I'm a bit tight on cash at the moment, so was hoping to sort it myself, starting with cheapest things to check followed by the more expensive. Any advice would be really appreciated. Thanking you in advance.