More charging issues
#1
More charging issues
91 GT
New Alternator (140AMP)
New Battery
New Battery Cables
New Starter
Stock Engine
No sound system
Car starts fine and I when I start it, I can diconnect the battery cable and the car will stay on. When I'm driving the battery charge goes up to about half way, but as soon as I come to a stop, the charging goes down to about 8 and if driving at night, all the lights (dash and external) goes dim when car is idle. And brightens when accelerator is press. Why does it do that? Why would reving the engine cause the charging to go up?
New Alternator (140AMP)
New Battery
New Battery Cables
New Starter
Stock Engine
No sound system
Car starts fine and I when I start it, I can diconnect the battery cable and the car will stay on. When I'm driving the battery charge goes up to about half way, but as soon as I come to a stop, the charging goes down to about 8 and if driving at night, all the lights (dash and external) goes dim when car is idle. And brightens when accelerator is press. Why does it do that? Why would reving the engine cause the charging to go up?
#2
RE: More charging issues
sounds like a voltage regulator. I dont know where they are on a mustang. sometimes they're built into the alternator. Or, do you have the right size pulley on the alternator. If not, it may be spinning to slow when you're at idle.
#7
RE: More charging issues
my car does the exact same thing. so i know how you feel. i'm about to change the wires running from the alt to the solenoid in a couple of days. how did you wire it? did you buy the kit or splice the wires? ill let you you know if it fixes the problem.
#9
RE: More charging issues
No underdrive pulleys. Just not charging when idle. If I give it some gas ... the charge goes up. I'm going to check the size of the pulley on the new alt to see if it's the same size as the old one. I don't remember if I had this problem with the old alt I had ...
Yeah let me know how that re-wiring goes cruizin92red5.0
Yeah let me know how that re-wiring goes cruizin92red5.0