88BlueGT

OK, and you are welcome to post back anytime as long as you dont come back and tell us that you baught the 1 billion dollar alternator that cooks you breakfast

89stanglx

Alternator's are rated at max the stock is like 70 amp and at idle it will be a very low output. As the rpm's come up so does the output up to its max output, i upgraded to the powermaster 1 wire 130amp alternator about 3 months ago, i think i paid around $160 and ordered it from advance auto parts. The stock alternator is junk with my electric fan at idle my battery guage would drop also. Also check those grounds.

Grimace5.0

I *think* around 86/87/88 they were included in the alt. My 85 has a external. I'll try to find out for sure.

Just thinking out loud...
Is the belt tensioned properly?
Terminals tight & clean?
Fusible link blown?
Grounds clean?

86HOGT

Sounds like something is drawing constantly and making it work harder which can be, as said, bad grounds, a power wire to a component shorting to ground. Like someone else said, are the alternators failing electrically or mechanically, cause that would help to know. Yeah, I work at Ford, and no reman Ford alternator is $400, more like $200+ range, really.

89stanglx

6-8 alternators in the past year! omg i cant imagine what this is costing in your electical problems especially if your having garages do the work.. What you need is a boyfriend, please send me pictures and the mods of the mustang lol.

rob_boura

has the same problem in my old car 91 hatch 1 alt a month for a year thank god for warenties but remand suck if you have a paw warehouse by you brand new high output altenators run about 130