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05-17-2012, 12:12 PM
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CC Member
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Join Date: Jun 2005
Cobra Make, Engine:
Posts: 3,077
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Not Ranked
Very erratic amp gauge, no start any ideas
Cobra been running perfect. Start it up and back out of garage and notice amp gauge swinging (Lucas) Go for ride radio cutting on and off, wired directly to battery, turn around go home and shut engine off, flip lights on no dimming or light intensity variation, try to start engine and everything completely DEAD. Lights dont even come on. Never had a batter just go completely dead before. Any ideas? Thanks
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05-17-2012, 12:59 PM
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CC Member
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Join Date: Sep 2002
Cobra Make, Engine: SPF#0760
Posts: 3,409
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Not Ranked
Send me an email offline and I'll give you my phone number, you can call me in the evening and we can work through the battery/starting issue.
__________________
Wiring Diagrams: SPF MKII, MKIII, GT40, CSX7000, CSX8000, Corvette Grand Sport, and Shelby Sebring, Bondurant & Cinema Tribute Cars.
Owner’s Manuals: SPF MKII, CSX7000, CSX8000, Sebring, Bondurant, Cinema Tribute Cars $ GT40’s..
Large, easy to read and trace schematics with part numbers, wire colors, wire gauge, fuses, and electrical upgrade information. Trouble-shooting and replacement part numbers for those roadside repair adventures.
SPFWiringDiagrams@Comcast.net
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05-17-2012, 07:47 PM
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CC Member
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Join Date: Jun 2005
Cobra Make, Engine:
Posts: 3,077
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Not Ranked
Blas is my hero, he nailed it. As stated above symptoms were sporadic. I had eratic amp gauge reading, then perfect. Could get car working jumping with cables, but not battery installed. Bottom line was the battery ground just behind battery box lug was 95 percent severed. You have to pull carpet up and remove Allen head screw to inspect since it breaks around Allen head. As Blas indicated no room for lug against fiberglass, enlarge hole. I would have broken down for sure, if I would have kept driving. Wow I am sooooo happy!, I owe you Blas.
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05-17-2012, 07:48 PM
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CC Member
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Join Date: Jun 2005
Cobra Make, Engine:
Posts: 3,077
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Not Ranked
If you have a SPF you will have this problem! This explains why my radio has been loosing it preprogrammed stations for the last year.
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05-24-2012, 09:36 AM
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CC Member
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Join Date: Apr 2011
Location: St. Louis,
MO
Cobra Make, Engine: Spf KC482 Pond, TKO 600
Posts: 32
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Not Ranked
Yup, had the exact same problem.
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05-24-2012, 02:30 PM
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CC Member
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Join Date: May 2008
Location: San Jose CA,
CA
Cobra Make, Engine: SPF_R_/BRG/FRBoss302/327CI/FordEFI/Under_Car_Exh/
Posts: 2,523
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Not Ranked
What chassis numbers are affected <>> ? I will go look at mine.
__________________
Steve SPF 2734 MK3 / Brock Coupe #54- panavia.com
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05-24-2012, 08:32 PM
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CC Member
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Join Date: May 2012
Location: san jose,
ca
Cobra Make, Engine: SPO3041 427R
Posts: 36
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Not Ranked
i also just had this problem ground wire broke clean off almost left me and my wife stranded....spo3041
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05-24-2012, 09:11 PM
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Senior Club Cobra Member
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Join Date: Oct 2006
Location: Santa Cruz,
CA
Cobra Make, Engine: SPF 2613 Titanium w/Black, Roush 402SR
Posts: 4,097
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Not Ranked
I've had this problem twice with two different root causes. One time, the negative terminal broke off of the battery. The second time, my internal regulator in my alternator when on the fritz.
__________________
Doug
No stop signs, speed limit - Nobody's gonna slow me down - Like a wheel, gonna spin it
Last edited by Got the Bug; 05-24-2012 at 09:14 PM..
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05-24-2012, 09:53 PM
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Senior Club Cobra Member
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Join Date: Apr 2007
Location: ione,
ca
Cobra Make, Engine: SPF #1473 392 cu.in. titanium/black stripes
Posts: 945
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Not Ranked
I had the same problem also... left me stranded miles from home. Luckily the local AAA road service dude is a friend and he picked me up with his flat bed miles away from his assigned area. Ya gotta love it! An easy fix once you figure it out.
Bob
__________________
"Outside of a dog, a book is man's best friend. Inside a dog it's too dark to read."
Groucho Marx
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06-01-2012, 03:51 PM
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CC Member
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Join Date: Jun 2005
Cobra Make, Engine:
Posts: 3,077
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Not Ranked
I imagine all all affected. As Blas explained, the cable terminal is under stress then as the body flexes failure will occur. Solution is simple, enlarge terminal hole to slot so the terminal is not under bending stresses. Remember same current that goes through positive goes through negative, I guess worse case scenario is you catch carpet on fire from hot terminal.
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