Had timing belt and water pump replaced on my daughters 01 camry. Car has 70,000 miles and 4cylinder engine. Was done at local toyota dealership. Noticed that the engine runs a little rough and has a slight rattle at idle, but it clears up when engine rpm is above 2000. Will contact dealer tomorrow but am curious if they could have flubbed up the timing when replacing the belt? Not happy as the car ran like a watch before the work was done. Any and all opinions appreciated. Want something to go on before I contact them.