pull the heads off ??????? You guys........
All the hoses are pretty easy to get to - just start pulling stuff off until you can access the one you want - intercooler hoses etc i mean. Even the water pump comes off easily if you need to take it off. If you do take the water pump apart, dont rely on the hair thin o ring to reseal, you'll need to put on a little bit of gasket goo too.
Good opportunity to change your coolant too. And check for wear points on the hoses.