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10-27-2009, 06:44 AM
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#1
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Need some help
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Deranged
Join Date: Jan 2005
City: Largo
State: Florida
Posts: 7,051
Thanks: 5
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Driving into work this morning sitting at a stop light the voltage gauge went to 0 lights got dim clock started flashing then it started charging again got to work same dim lights etc and started charging turned the car off got the dreaded click of the starter so what do you think battery or alternator ?? I have a feeling the battery would be to simple of a fix
Update --- Just had a coworker jump start the car fired right up voltage gauge showed it at normal lights were bright shut it down several time started right up ?? so now it could be a short/battery/alt
__________________
Mods-MAc CAI , True Dual Flowmaster 40,3.73 ,T-Lok, 25% UDP, 3/8 Phenolic Intake Spacer ,Steeda Tri-ax, SCT Chip/ Tune
Last edited by Herbstang; 10-27-2009 at 07:12 AM..
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10-27-2009, 07:46 AM
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#2
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Re: Need some help
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Registered User
Join Date: Jan 2005
City: Augusta
State: Georgia
Posts: 120
Thanks: 6
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i would clean and check battery terminals, also check for loose connections at the starter and alternator, if that dosent help you might have a bad battery or alternator
__________________
 03 gt, sct custom tuned, k&n fipk, upr o/r x-pipe, dynomax turbo mufflers, mm c/c plates, h&r race springs, bullit rims 18x10 rear 18x9 front, 20% tint, 9 inch shorty antenna
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10-27-2009, 08:18 AM
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#3
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Re: Need some help
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WTF^^...
Join Date: May 2003
City: Birmingham / Florence
State: Alabama
Posts: 29,722
Thanks: 12
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could be the battery, they are funny sometimes~ mine simply died... was fine then 100% dead couldnt even jump it. I stoped to eat got back in it and ... nothing.
Do you have a spare battery you can put it in and test with?
__________________
2003 REDFIRE COBRA #3938 of 5082 @ 05/27/2003 1 of 414
MGW Shifter, Borla Stinger Polished Catback, JLT Intake, MM FLSF Connectors, MM C/C Plates, H&R Race Springs, IRS Bace, MRT Hood Struts, True Forged Mach 5 18x9 (275/35/18) 18x10 (295/35/18) wheels, Other Mods, My Pics, High Res Pics
400rwhp/380rwtq - Click mods for more info!
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10-27-2009, 08:24 AM
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#4
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Re: Need some help
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Deranged
Join Date: Jan 2005
City: Largo
State: Florida
Posts: 7,051
Thanks: 5
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I'm gonna take off at 12 go to autozone and have them test battery, alt I'm gonna clean the terminals now
__________________
Mods-MAc CAI , True Dual Flowmaster 40,3.73 ,T-Lok, 25% UDP, 3/8 Phenolic Intake Spacer ,Steeda Tri-ax, SCT Chip/ Tune
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10-27-2009, 09:48 AM
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#5
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Re: Need some help
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I aRe tEh JiMbO
Join Date: Oct 2009
City: Dothan
State: Alabama
Posts: 192
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I'd say it's probably the voltage regulator in the alt. Once the alt stops charging, everything runs off of the batt....when it dies, everything dies. For the simple fact that sometimes it "starts charging", I'd start with the alt. I don't know that I'd go to twilight...err....I mean auto-zone....the autozone guys here are all idiots (basically the wal-mart auto rejects....and I wouldn't let those wal-mart dweebs work on my damned bicycle....if that tells you how bad they are). But, Autozone, o'reilly,advanced, pep boys, etc...should all be able to check the alt. If you go with a re-man alt....make sure you pay a little extra to get one with the "lifetime warranty"...NOT the limited lifetime. I know the limited lifetime is only on manufacturer's defect. I learned my lesson on that shit...long story short....in my old f-150,on my way to houston, alt petered-out in baytown,tx at about 8:30 pm...had to call a roadside repair (cost me about 600 that night, with a reman alt)......two days later....truck dies again in dowtown houston...NOT FUN.....finally got it to the ford place, got new alt....another 400+.
Unless the voltage reg has fried the batt, it'll probably be ok. But, I'd definately go with an alt.
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1996 GT, 5-speed, Royal Blue, leather, Flowmaster Cat-Back exhaust (Delta 40 series), BBK cold air intake & 75mm TBI, Super Chips programmer. Plus two hampster wheels in the trunk, just in-case! 
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10-27-2009, 10:29 AM
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#6
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Re: Need some help
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Deranged
Join Date: Jan 2005
City: Largo
State: Florida
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Well it's not the alt just put a meter on it and it putting out 13.84 The battery has some water stains around the vent caps, the ground termial needed cleaning The battery is 5 yrs old I'll replace that today Thanks for the help and advise
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Mods-MAc CAI , True Dual Flowmaster 40,3.73 ,T-Lok, 25% UDP, 3/8 Phenolic Intake Spacer ,Steeda Tri-ax, SCT Chip/ Tune
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10-27-2009, 11:41 AM
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#7
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Re: Need some help
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I fell off a truck
Join Date: Jun 2007
City: South of the Turnpike
State: New York
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My guess would have been the alternator. What was the voltage on the battery out of curiosity (if you checked)?
__________________
2002 Mustang GT 
BBK CAI - Flowmaster Catbacks - Pro 5.0 Shifter
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10-27-2009, 02:11 PM
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#8
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Re: Need some help
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Deranged
Join Date: Jan 2005
City: Largo
State: Florida
Posts: 7,051
Thanks: 5
Thanked 39 Times in 36 Posts
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Didn't check the battery output  I went by the theory of a fully charged battery with a working running alternator is around 13.8 volts
I'm gonna replace the battery it's 5 yrs old and the florida heat beats the shit out of battery's
__________________
Mods-MAc CAI , True Dual Flowmaster 40,3.73 ,T-Lok, 25% UDP, 3/8 Phenolic Intake Spacer ,Steeda Tri-ax, SCT Chip/ Tune
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10-27-2009, 02:35 PM
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#9
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Re: Need some help
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I aRe tEh JiMbO
Join Date: Oct 2009
City: Dothan
State: Alabama
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Thanks: 18
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if the voltage regulator is going out....more than likely it was in an "ok" state when you checked it. That would explain the "then it started charging again" If the batt is that old, hell, it won't hurt to get a new one anyway, but I'd damned sure keep an eye on that alt.
__________________
1996 GT, 5-speed, Royal Blue, leather, Flowmaster Cat-Back exhaust (Delta 40 series), BBK cold air intake & 75mm TBI, Super Chips programmer. Plus two hampster wheels in the trunk, just in-case!
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10-27-2009, 02:36 PM
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#10
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Re: Need some help
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Mmmm.... Catfish
Join Date: Feb 2007
City: St Louis
State: Missouri
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Same thing happened to me and it was the battery.
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03 GT silver, BBK intake, March underdrive crank pulley, Spec Stage2 clutch, Spec lightweight flywheel, Pypes catless x-pipe, short throw shifter, Cobra wheels, Termi front bumper and hood.
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10-28-2009, 04:27 AM
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#11
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Re: Need some help
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I LOVE BOOST
Join Date: Mar 2009
City: Columbus
State: Georgia
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alternator! i had a porsche that did the samething and it was the alternator!
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[B] V2 Vortech Supercharger, 3.73 gears w/ T-lok, Predator Diablo, Mac cold air intake, Port & polished upper AND lower intake manifolds, Mac o/r H pipe, flowmasters, 2.5 flowmaster tips
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10-28-2009, 12:15 PM
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#12
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Re: Need some help
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05 V6 Stang Supercharged-NOT CATS
Join Date: Nov 2008
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it sounds like the alternator to me and it could have drained your battery. one day i was driving to work and my car just suddently gave a check engine light, then the radio died, and i jussstt made it to the shop. turns out my alternator died and the car was running off of the battery.
so get the alternator checked before you spend money on another battery. |
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10-28-2009, 01:03 PM
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#13
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Re: Need some help
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Deranged
Join Date: Jan 2005
City: Largo
State: Florida
Posts: 7,051
Thanks: 5
Thanked 39 Times in 36 Posts
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Thanks for all the advise The real problem was the dirty terminal. I'm replacing the copper end with a lead one The copper attachs all the white shit(corrosion)
once I replaced the copper end maybe i'll go old school and crazy glue some copper penny close to the neutral terminal to attached any future corrosion.
__________________
Mods-MAc CAI , True Dual Flowmaster 40,3.73 ,T-Lok, 25% UDP, 3/8 Phenolic Intake Spacer ,Steeda Tri-ax, SCT Chip/ Tune
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10-28-2009, 06:45 PM
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#14
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Re: Need some help
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Registered User
Join Date: Jan 2005
City: Augusta
State: Georgia
Posts: 120
Thanks: 6
Thanked 1 Time in 1 Post
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__________________
03 gt, sct custom tuned, k&n fipk, upr o/r x-pipe, dynomax turbo mufflers, mm c/c plates, h&r race springs, bullit rims 18x10 rear 18x9 front, 20% tint, 9 inch shorty antenna
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10-28-2009, 08:57 PM
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#15
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Re: Need some help
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I LOVE BOOST
Join Date: Mar 2009
City: Columbus
State: Georgia
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Thanks: 10
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well damn i thought it was most def alternator. Glad u got it fixed though man!
__________________
[B] V2 Vortech Supercharger, 3.73 gears w/ T-lok, Predator Diablo, Mac cold air intake, Port & polished upper AND lower intake manifolds, Mac o/r H pipe, flowmasters, 2.5 flowmaster tips
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10-29-2009, 11:39 AM
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#16
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Re: Need some help
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I fell off a truck
Join Date: Jun 2007
City: South of the Turnpike
State: New York
Posts: 1,432
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Thanked 45 Times in 39 Posts
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Sometimes alternators can run as high as 15 volts running! On my '98 I had readings of over 14 volts.
As for the corrosion you can always clean it with some Diet Coke. Cleans that crap up nicely.
Now speaking of, I was sitting in the school parking lot this morning waiting for a spot to open up and I see a guy start walking to his car so I go to start the car and just *clickity cli-* Dammit!, try a few times, wait a few seconds in between, and I can't even push the car a little up hill. So I wait a few more seconds, make sure nothing electrical is on give it one last crank "click click click, vroooo--- click VROOOOM!* Just in time too to get the spot.
__________________
2002 Mustang GT
BBK CAI - Flowmaster Catbacks - Pro 5.0 Shifter
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