I did post a procedure on how to do this in the How To Section on this site. The Manual says you have to remove the Heat Sheild. Dont bother. This a difficult and pain full. My process does require you to get under the car but will be much faster. You do have to remove the Coolant Inlet pipe from the Engine but even the manual states to do this. Let me know if you need more explanation on the post I did. Thanks.

Patel