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electrical questions non constant voltage

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Old 07-03-2011
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Icon5 electrical questions non constant voltage

Hey guys i have a whole mess of electrical problems in my truck and was wondering if anyone could help i firsts started having problems such as low voltage the battery not charging and voltage spikes. i went to 3 different mechanics and they said my alternator and batt. were fine. i drove around for a couple months dealing with it and then i put in my new system and then my alternator crapped out on me so i put in a new one i figured everything would be fine (rebuilt alternator btw) now im getting inconsistent voltage spikes and drops low 12.6v high 16.9v btw i'm reading this off the volt meter on my capacitor idk what is going on but its getting annoying and i'm hoping its not hurting anything that's what i'm mostly worrying about any help is greatly appreciated and sorry for the long write up thanks
 
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Old 07-04-2011
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Have you done the big 3 yet?
 
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Old 07-04-2011
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Originally Posted by Blhde View Post
Have you done the big 3 yet?
big 3?
 
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Old 07-05-2011
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To me it sounds like a loss, broken, or corroded wire in the power system. The big 3 will upgrade and replace these wires. Being you added "my new system" to which I hate that name for a car stereo.

When you add high draw electronics or light upgrading the factory wiring is needed as are no fuses in these wires. While a bit extreme the potential for overloading them and melting wires is there. So upgrading with 4awg will get the job done, some will say it is not needed unless you have a hi po(anything over 95 amp) alternator. Since you have issue already and a car stereo you need the big 3.

Which is just installing 4 awg wire from alt to batt, engine to chassis, and batt to chassis. Pretty simple but it is the backbone for power distribution for the entire truck.
 
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Old 07-05-2011
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dude good advice thanks i have 6awg for my sub ground and 4 awg for the sub but ill have to try that thanks
 
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