not physically challenging..but it gave me fits.
1996 chevy S10 -ZR2 package. battery was losing a charge sitting in my driveway. brand new optima from pep boys. i had the new battery tested..said it was good. i fussed with that thing for two weeks. i cleaned up wiring..traced things..blew up 2 radio shack multimeters. i was obsessed. sleeping, if i got an idea on a possible thing to check, i jump out of bed to try it. wife drew up divorce papers.
i finally cracked and took the truck in to the dealer. he found a messed up wire harness and fixed it for $300. i got home and went to bed blissful and peaceful. next morning..truck.."bzzzzzz"..no start. battery dead. i just about torched the thing. one final attempt..i took the battery back in to get recharged. tech repeated that the battery was fine and proceeded to charge it. right before full charge..he got an error. WTF? he said..this battery is bad!! he gave me a new one, and all sins evaporated. i wasted several weeks, and some money. truck was perfect again.