I've got a gals 05 LaCrosse, 50thou miles with a slight coolant leak coming from under the power steering reservoir on a 3.6 motor, I have no manual or experience with this motor and I am wondering what will most likely be found after clearing everything away, water pump leaking, seals, or bolts known for having leaks, does this engine have the same 90 and lim uim issues as the 3800? would like to have an idea before I start tearing it apart, an making this gal eat peanut butter an crackers for a month.. for a very small amount of leakage at this time.? Not sure if water pump has been worked on or not it was in the dealers a few times because of leaks, warranty is long gone now. I searched some an find the 3800 is in the majority of discussions,not much help on this 3.6. Any help ladies or gentlemen? Thanks