2005 - 2014 MustangsDiscussions on the latest S197 model Mustangs from Ford.
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I have a 2008 v6 pony pkg for about three years now and I have been trying to fix this problem for over a year now!
It started with my battery going dead, then a few months my alternator went out.. then a week later, the alternator again.. after my 8th one, it started working right.. for about a year. Then we come to yesterday and its doing it all over again.
My lights dim for a little bit a few times when I drive. I don't have any systems in it or anything.
The only thing that seems to pop out is the positive cable from the alt. its a little burnt from the first time all this happened.
Any one have an idea on what I can do to fix it?
I attached a pic of the cable. Let me know it doesn't work. I had to click the little box for the pic to open up
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You may have a voltage drop in the harness. Use a volt meter and check the power from the B+ on the alternator vs at the battery. I've run a new wire from the battery directly to the B+ of the alternator on old euro cars because of a voltage drop
2014 black Mustang5.0 track package, Recaros.
Roush axle back
I agree with Nuke, get a good alternator and upgrade the battery cables and grounds. Make sure all of the connections are cleaned with a wire brush. Any corrosion will cause a voltage drop and get hot. You can check everything by running it about ten minute with the headlights on and spay a little water on the connectors, if they are hot, the water will sizzle.
2012 Mustang Premium 6 speed Manual
Starkey Fog Lights
5 spoke chrome American Muscle 18" x 9" wheels
Nitto 255/45ZR18 Tires
H&R Sport Front and Rear Sway Bar
J&M lower control arms
TMI adjustable tilt headrests
Gaslock LED Shift ****
Shelby door subs
Sony 200W amp
Please make sure the battery is charged fully before installing your alt. If you use your Alt to fully charge a dead battery it will end up cooking it. Alternators are designed to maintain a charge in a battery, not maintain a charge and charge the battery fully at the same time. They can do it, but they will get ruined.
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