I've have an 83 Pontiac 6000 STE with what looks like a bad
alternator . This is 108 amp Delco SI. The system is not charging -
there is only battery voltage at the battery (spec is 13.3 - 14.4 V.)
Unfortunately the dash diode and alt lights are not working but the
fuse checks ok, The alternator gets hot at the rectifier and whines.
The there is a current drain about 500 mA with engine and system
off. All cables are clean with 0.1 V drop max at both pos and neg .
Alternator Bat terminal to Ground is at battery voltage (11.3V ).
Alt terminal 1 is 10.9 V and terminal 2 is 0.8V. Does this indicate a
bad diode? If so, is it worth it to repair or is it better to buy a
reman. A Delco reman is pretty pricey at $ 170 . Although I would
hate to get is a Pep Boys or other box store alternator is about
My alternator went in my '96 Bonnie a couple of months ago. I priced a
remanufactured one from my local dealer at around $300 (Canadian). Someone
recommended a some-what local shop who rebuilds them, so I gave them a call.
I got a totally rebuilt alternator, a 1-year warranty (the same as the
Dealer), and I only paid $150. This is a family owned shop, and they even
threw my old alternator on the tester to make certain it was bad, and
provided me with a printout of the new alternator to show it was good. The
things looks and works like a top, and like I said, cost half as much.
Im with you, 80 Knight...
I have rebuilt them myself, but prefer to patronize my local
This team gives me a good warranty, and have a vested interest in my
working and lasting.
Cost is as good as, if not better than, the FLAPS>
I would get mine rebuilt at a local shop or buy an AutoZone or Pepboys, make
sure you get the lifetime guarantee, because the cheaper ones don't seem to
last very long. On that old of car I would not get a new Delco unit.
It'll probably cost you close to the $170 to get it rebuilt properly at
a good shop, but if you have a good parts store (NAPA or independent)
nearby you can probably buy a kit and do it yourself, they are not real
hard to do but having air tools helps to get the pulley off. I'm a bit
leery of the cheap parts store remans, although I have one and it
appears to work OK (the one on my car I had gone through by a good local
replace "roosters" with "cox" to reply.
Pricing for this kind of work varies greatly by locale, but where I live, we
About the same here, Mike. I had the local shop rebuild an ECS unit for one
application and it was about that price. (I swapped the Bosch on my old
and retrofitted the ECS. The ECS was a shitty alternator, but in a tractor
where it can stay in open air it runs cool and has lasted well.)
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