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Old 07-08-2019, 09:09 PM   #1
blazintowers
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Join Date: Sep 2009
Location: saugus, ca
Posts: 74
Is this factory or something added?

Hopefully someone can help. Working on the wiring on the 71 blazer and cant find these relays on any of the wiring diagrams. One of them has a black wire that runs to the t350 transmission, I'm assuming this is the back up light switch? the other is a green wire that ran to the water temp sensor. Does any of your blazers have these mounted on the firewall next to the wire harness bulkhead?
Thanks in advance for any insight on this....
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