Finally couldn't take the squeaking and hesitation of my 2000 ford windstar, so I got to it and replaced the serpentine belt.
After spending about 15 minutes to detemine the tensioner pulley was located on the very bottom, under the power steering pump (damn why didn't they put that up top ?). This means I couldn't release the tension and pull the belt off (because I had too lay on my side and reach up under and through the passenger wheel well). Called the wife and she pulled the belt off from the top.
Review of the belt shows wear, nothing overly wrong with it, but with 115K miles; it's time to get a new one.
Down to local FLAPS (Friendly local auto parts store), get talked into the $40 belt vs $20 (sucker !).
Installation goes as expected, not hard, just have to be patient and work the belt around it's appropriate places (course Ford couldn't be smart and put a picture of the serpentine diagram somewhere in the engine compartment, but I drew a picture before taking the old one off (see i am wiser), and the new belt came with a diagram too).
Getting the thing back on resulted in the same problem as getting it off, it just wasn't possible for me to grab the wrench and release the tension and put the belt back on (see description above).
Call Wife, she tries to slip belt back on from top, but either doesn't have the hand strength or doesn't want to get pinched putting belt over idler pulley. I talk her into laying on the ground and reaching up to through the wheel well to the wrench on tensioner pulley....we were done 2 minutes later !
Car is running great no hesitiation, less squeaking; can only assume the hesitation was caused by the belt slipping occasionally and causing the alternator to "jump". Squeaking still makes let's me know that in the near future a water pump, alternator, power steer pump, tension or idler pulley will be calling out out to me, but that is expected with high mileage.
Total time, 2 hours (including run to FLAPS).