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04-18-2010 #1
Registered User
- Join Date
- Feb 2008
- Posts
- 118
Alternator warning light on, but alternator charges...
Hi all,
I'm having a strange problem with my alternator. When the car starts, the alternator warning light stays on, albeit a little dimmer than before the car starts. However, when I put my digital multimeter across the battery, it shows 12.72V before starting the car and 14.07V when the car is running.
Clearly the alternator is charging the battery... so what could cause the warning lamp to stay on?
Cheers,
-MattMatt Barr.
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04-19-2010 #2
Registered User
- Join Date
- Aug 2004
- Location
- Melbourne, FL
- Posts
- 1,046
Type of car and alternator ??? Internal/external reg ??
67 Firebird Convert 455 +.060 Johnny Winters TH400 74cc KRE d-port flowed @ 310 cfm heads piston dished 16cc H-beam rods Comp Cam 305-AH-8 cam 108* LSA 253/260 @.050 duration .577/.594 lift w/1.65 rockers Ford 9" 3.55 Detroit Locker M/T Sportsman Radials 31x18x15 on Convo Pro 15x15s
Honest dad that 455 on the side of the block is a serial number
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