thanks for the input. actually the alternator went on a Sat. and needed to be fixed on a Sunday so i took the fucking thing into to Pep Boys aarrggghhhh (the only place doing shop work on a sunday). they quoted me at 300 total, 170 alternator + core removal 30 + 100 for labor = 300 bucks, when i called to pick it up they told me 735.00 total!!!! they explained that the battery was fried too so they added that on.....
long story short, i politely but directly told them what i was quoted, how long the should take on that car, how much i was quoted on the alternator...i pushed and pushed and got out of there paying 350 total...still fucking high i think.
if i hadn't articulated my points emphatically and concisely and/or looked the part to murder someone upon arrival they would have demanded more. i literally told them what i would pay and he calculated bullshit discounts to make the cost match what i said. the reciept literally says - alternator 260.00 discount applied 170.00 - how the fuck do they get away w/ that? if i were a women or weak in conviction they would have raped me no doubt.
end rant/ the light is now off, been off since i drove it this a.m. 30 miles or so, the alternator is new, apparently 260, even though i had agreed to the 175 dollar one! that's partly why the pep boy douche was upset w/ me paying what was our agrred upon price before hand, he didn't know he was suppose to use the low cost alternator.
the light is off, so my hope is that when jumped the car for the guy last night it temporarily fucked w/ the voltage reading, ford's master computer sensors got confused and have since become unconfused. thanks for the response, let;'s let this thread head to wasteland now.