2005 Mustyang GT - "Check Charging System" - Ford Mustang Forum
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post #1 of 4 (permalink) Old 04-08-2010 Thread Starter
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2005 Mustyang GT - "Check Charging System"

So last night on my way home from work, the battery light came on my dash and my info center said "CHECK CHARGING SYSTEM". It stayed on for maybe 30 seconds, then the info center went back to normal, and the battery light went off. After a few minutes, the same thing happened again, and went back to normal just as quickly. This morning everything was fine for about 7 minutes when I started driving, then the same on/off issue with the "CHECK CHARGING SYSTEM" message and battery light started again.

I have a feeling this is an alternator problem, but it is weird to me that the light and message come and go so frequently. Has this happened to anyone before?

2008 Ford Mustang GT/CS - Black with Black/Dove Gray interior - Bone stock...for now
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post #2 of 4 (permalink) Old 04-08-2010
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You're alternator is failing. You're on borrowed time.

1965 Mustang Coupe
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post #3 of 4 (permalink) Old 04-12-2010
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Mine is doing the same thing. Seems to happen more if I use the heater in the mornings but has also done it with nothing on. I thought maybe at 1st it was low rpms with the heater on but this morning it happened while I was doing 60 ???


2007 GT premium coupe black/medium parchment
options: 3.55 gears 18" premium wheels with pony center cap interior upgrade package. Mods: flowmaster american thunder axle back, billet grille (upper/lower), chrome taillight trim, JLT cai, bama custom tune.
post #4 of 4 (permalink) Old 04-13-2010
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mine does it from time to time in the morning if it's damp. I'm going to order another alt soon.

Forged bottom end, Ported heads, Saleen super charger, 2.8 blower pulley/15psi, Dual stage water to air intercooler, AFCO heat exchanger, battery relocated, Twin GT500 fuel pumps, T-56 trans, Aluminum flywheel, Aluminum driveshaft, 3.73 rear gears, Eaton TruTrac Diff, TA Performance rear end girdle, Racecraft suspension system, UCA, LCA, panhard bar, 15" slotted front rotors w/ 6 piston calipers, Carbon Fiber front splitter/rear diffuser, and bunch of other stuff
RWHP/RWTQ is adequate
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