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Needles freaking out... amp load?...

1296 Views 1 Reply 1 Participant Last post by  K15 Blazer Guy
It all started when i pinned my speedometer. it only goes to 85 on this truck.... i reset the computer but the needles still twitch and freak out when i add electrical load to the truck... headlights, AC, turn signals, electric fan etc. is this a relay/computer issue, or do i just need more juice from a high out put alternator?
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also, no computer codes, but the ABS light is on... its been on for months
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