Chrysler Repair: Water pump R/R: 2.5L V-6, chrysler sebring convertible, antifreeze leak

Question
I have a 2000 Chrysler Sebring convertible that keeps running hot. Changed cap, thermostat, and radiator (after radiator busted) but still runs hot. Found antifreeze leak, coming from pin hole on engine after I removed timing chain cover. Does that hole suppose to be there? Brought water pump today because that's the only thing left, right? If so where is it located and please give me some R/R help.

Answer
Hi Edith,
That 'weep hole' is part of the water pump and is a sign that it is starting to leak, but how much is leaking out that way? You didn't mention the rate of loss of coolant (quart/how many miles driven?). What other signs of overheating do you have, other than the gauge, which may be inaccurate? Have you seen signs of excessive white smoke coming from the tailpipe during the first few minutes after starting the engine from cold? Have you touched the wheels after driving for a while with not much braking to see if one of the brakes may be dragging and heating up one of the wheels excessively? Is there any wetness on the rugs under the dash which would be a sign of a heater core leak? Is the radiator fan coming on when the gauge reads hot? How high does the gauge read?  All of those could be alternative causes of 'running hot'.  
I ask all these questions because the pump replacement involves doing the 'job' involved with replacing the time belt in order to get to the location of the pump for removal. If the belt has gone over 100K miles then doing both at the same time is the correct approach. But eliminating all other possibilities before getting into that job is prudent. So take a look/feel.
The job is rather extensive so is not practical to give you by texting. Rather you would do well to use a Haynes manual for that vehicle/engine. I assume you have the 2.5L V-6.
Roland
PS Sorry for the delay but I just found your question in the pool to which it had been referred by the other expert.