Weird problem doing big three

[sethbuckner 10+ year member]

on my 2007 volvo s40,when i ran a new 0 guage from the positive terminal on the alternator to the positive terminal on my optima, my car wouldn't start. i reconnect the original factory wire and whalaa it starts just fine. i asked the volvo dealership is the factory alt + to bat + wire intersects anything along the way such as any starting/ignition system components but they said it was a direct wire from the alt + to the battery +. i have 0awg grounded my cranking battery, 0awg from the alt + to batt +, and have yet to upgrade my other ground.....

anyone have an idea of what could be going on?

thanks, seth

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[Savstyle 10+ year member]

Im confused, are you disconnecting the orginal positive wire?

The big 3 you just add wire not remove

IIRC

 

[lilboom 10+ year member]

i remember reading/seeing on youtube something i just cant recall what exactly.

i do think it did have something to do with the wire .some special gizmo...9im trying to remember where i saw/read it

 

[SoCalNoob 10+ year member]

is it more then 1 wire in the factory wire? if so there might be like a 8ga starter/acc wire in there that still needs to be connected

 

[daboyfrumdabx 10+ year member]

is it more then 1 wire in the factory wire? if so there might be like a 8ga starter/acc wire in there that still needs to be connected

This. Just add the wire, you definitely disconnected your starter