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03-27-2003, 10:35 PM | #1 |
Registered Member
Join Date: Jan 2003
Location: Palm Bay, FL
Posts: 432
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Battery dummy light
Quick question...when I turn the key to On but don't start the car, my battery dummy light comes on and stays lit. Is this simply because the alternator isn't charging it, or is this the car telling my battery is low on juice?
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'91 Mustang GT 5.0 AOD Daily Driver Current stats: NEW 302 short block, E-303 cam (@.050, 220/220, .498/.498, 110 degrees), 1.6 roller rockers, Performer RPM heads (aluminum, 1.9/1.6, 60cc chambers), Cobra intake, Granatelli 75mm MAF, Billet AFPR, Equal-Length Shorty Headers, Off-Road X Pipe, Flowmasters, 4.10 POSI 13.73 at 103.8, ~2.2 60' |
03-28-2003, 03:51 PM | #2 |
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Join Date: Feb 2002
Location: Diamond Bar
Posts: 258
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the light comes on for a few reasons. it comes on to tell you that your battry is not charging and under a certain voltage. also to let you know the bulb is good. now if the light is on when the car is running then you have a battery or alternator problem.
if the car cranks fine and the light goes away after it starts then you dont have a problem.
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66 mustang-292-Holley 4160-World Castings Windsor Sr.-Hooker super comp headers-MSD box & Coil.3.55 gears. B&M Z-Gate-Black leather racing seats with 4pt harnes. |
03-28-2003, 10:30 PM | #3 |
Registered Member
Join Date: Jan 2003
Location: Palm Bay, FL
Posts: 432
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Light stays on when the key is in the on position...when I start it it goes away. Ok..thanks. I was just wondering whether the light staying on with the key turned was the car's way of telling me my battery is weak.
__________________
'91 Mustang GT 5.0 AOD Daily Driver Current stats: NEW 302 short block, E-303 cam (@.050, 220/220, .498/.498, 110 degrees), 1.6 roller rockers, Performer RPM heads (aluminum, 1.9/1.6, 60cc chambers), Cobra intake, Granatelli 75mm MAF, Billet AFPR, Equal-Length Shorty Headers, Off-Road X Pipe, Flowmasters, 4.10 POSI 13.73 at 103.8, ~2.2 60' |
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