Brrty light on

Asked by Jul 04, 2012 at 11:16 AM about the 1999 Ford F-350 Super Duty Lariat SuperCab SB 4WD

Question type: Maintenance & Repair

batteries charged, alternator working....idiot light on  dash is on,  where do i go next?  7.3, manual 6 spd, 4wd, 431K miles.

2 Answers


I have to ask, but by saying the alternator is working, do you mean spinning or actually charging and you have more than 13.5volts at the battery with the engine on? If the light is still on the dash, look at all the wired connections for corrosion or splits and frays to the alternator, and battery.

2 of 2 people found this helpful.

bed alternator

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