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Author
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Topic: need help battery keeps dieing 03 cobra
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5POINTAMRIT
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Member # 11311
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posted
 
 
so a couple weeks ago i noticed my battery sign would come on then off it also had died a couple times and needed jump to start, so i bought a new battery ran great for a couple days but light was still on a week goes by and today i drive it and park my car and when i try starting it it wont start... could this be alternator not charging or starter? battery new so i doubt its the battery please if anyone can help thanks
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2017 Mustang GT
2003 DSG Cobra
1991 Mustang 5.0- Sold
1990 Mustang 5.0 331 Stroker 402rwhp- SOLD
Supercharged 01 Mustang GT 368rwhp-SOLD
Posts: 693 | From: 510 | Registered: Sep 2011
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BTLD GT
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Member # 5229
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posted
the battery light on means the alternator is not charging
Daniel
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2000 Cobra R
Posts: 558 | From: livermore | Registered: Jan 2005
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stanger00
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Member # 13818
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posted
Alternator issue.
In the future buy a cheap DMM (digital multi meter) and when this happens again put the leads in your battery and see if the alternator is pumping out 13.7+ volts at idle. If it doesn't it probably needs to be replaced.
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2000 Mustang GT Aluminator, TFS, Vortech, AED
Posts: 211 | From: Concord | Registered: Oct 2014
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4 CAM FOX
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Member # 11891
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posted
Take the alternator out and have it tested at a parts store before you start throwing money at it. The alt test is free.
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"The clutch is on the left. Gas on the right."
"What's this one in the middle?"
"It's for pussies."
Posts: 1798 | From: NOR*CAL | Registered: Apr 2012
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1RaReSnAkE
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Member # 7951
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posted
quote:
Originally posted by SVT_AMRIT:
so a couple weeks ago i noticed my battery sign would come on then off it also had died a couple times and needed jump to start, so i bought a new battery ran great for a couple days but light was still on a week goes by and today i drive it and park my car and when i try starting it it wont start... could this be alternator not charging or starter? battery new so i doubt its the battery please if anyone can help thanks
Another thing to check for is a loose belt. Our alternators are driven by the super charger belt. If it is too loose, it will slip and cause the battery light to flicker. Just another thought.
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~2004 Torch Red Cobra~
Tuned by Bob Kurgan-3/22/2014
-2004 Silver Cobra'Tuned By Bob Kurgan'TOTALED R.I.P. 7/28/2013
Posts: 358 | From: san jose | Registered: Oct 2007
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95gtdrop
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Member # 7478
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posted
On svtp
There seems to be tons of issues with the 03-04 alternators going out.
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1997 SVT cobra SOLD;(
2004 SVT Cobra Vert
Posts: 1221 | From: sacramento | Registered: Mar 2007
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SLOWSN95
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Member # 8269
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posted
Common problem. Change it.
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94' GT
347 Stroker
MM Suspended
2003 SB SVT Lightning
Pullied and Lowered
89'Hatch-SOLD
Posts: 2214 | From: 510/east bay | Registered: Mar 2008
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