Recently, i had a leak from the water pump area, and had subsequent overheating. Immediately, i took it to the mechanic to have the pumpreplaced. He suggested replacing the timing belts (2). He charged me $450 for the whole thing (incl. labor and parts). Now, the car is back ... but i saw (call me paranoid) that the idling was higher than usual (it was at 1200 instead of 700). So, i tweaked the throttle setting to lower idle. Now, though it idles fine, i feel the drive is not as smooth. To be more precise, for every gear i don't quite reach the red line of 6000rpm. The engine feels heavy at 4500rpm. There is definetely a heavy feel to the car and a slight loss of power after replacing the timing belt and water pump .... the rev. and shift of gears (manual) is not as smooth. I wonder if this is due to bad timing alignment during the belt replacement ?? Or is it because the new water pump (because it works) offers more resistance than the broken one before, letting me to beleive there is a loss of power and higher idle ... I am confused. Pls advise.