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So why was the dash reading 13v at idle while the battery was over 14v? that suggests it's an issue between the fuse box and the interior. Likley to do with the aftermarket stuff.A voltage drop issue can be due to a mechanical problem if the harmonic balancer is slipping on its mount and not driving the alternator belt properly.
So why was the dash reading 13v at idle while the battery was over 14v? that suggests it's an issue between the fuse box and the interior. Likley to do with the aftermarket stuff.