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Voltage Dropping

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Old 10-23-06, 09:27 PM
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Voltage Dropping

My voltage drops sometimes from 14.0 to 10.9 then jumps back to 12.4, and when voltage drops it breaks up between 3500-4000 feels like it stalls a little and bogs barley. Could it be bad ground? Im thinking maybe coil packs? Help Anyone?
Old 10-23-06, 09:46 PM
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Check your battery leads, both positive and negative. Also, check all grounds as you mentioned.
Old 10-23-06, 10:25 PM
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Check your connection at your alternator as well.
Old 10-30-06, 10:00 PM
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They are all good? Should i go ahead and change the coil packs?
Old 10-30-06, 10:06 PM
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try running a 10 gauge wire form the positive battery terminal to the back of the alternator. the part with the nut on it.
Old 10-31-06, 06:26 AM
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Originally Posted by RiON
They are all good? Should i go ahead and change the coil packs?
I had major voltage issues recently, turned out to be a bad Optima battery.

Anthony
Old 10-31-06, 05:44 PM
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why would you change the coils if the prob is with the battery/alt or the associated wiring???

the coils are supposed to see 12+ volts how happy do you think old ones are when they get ~10v???
Old 11-01-06, 07:35 PM
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when i tap the breaks the lights dim also. I ran a 14 gauge wire from battery ground to ground for coil packs and starter harnes. Im gonna try that 10 gauge to back of alternator.
Old 11-01-06, 07:36 PM
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Thats why i changed my battery to a duralast.
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