Project Viper GTS: Part 5 – Radiator Fan & Wiring Upgrade


On the driver’s side below the Power Distribution Center (PDC) and ECU is a ground wire on the rocker panel.  The ring terminal was low quality and quite soft and could be upgraded with our new ring terminal (right).

Gound Wire stock

Pulling back the plastic sheathing, the wires were wrapped in a sticky and deteriorating tape.

Ground Wire Fixed

Following the wire procedure of crimp, solder, and wrap; we fixed up our ground wire to be better than new.


Following the same procedure for our new Raychem-wrapped 10 gauge ground wire for the fan, the new grounds will last far longer with greatly improved performance and reliability.

Power Wire

Next we wired the 12V power line for our fan following the same steps to make the wiring protected from the elements, fatigue, and creating the best electrical conduction possible.


We crimped, soldered, and shrank the Deutch pins onto our 10 gauge power and ground wires.
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  1. Radiator fan wiring upgrade they auxiliary relays what wires output to the fan either number or color it’s not clear thank you for your help

  2. Have a customer with a 96 wanting to do this upgrade to his cooling system, any idea where the cooling fan may be available?

  3. That’s weird. I’ve always been taught to crimp ring terminals on the cut side, so it forms a B-type crimp that secures the wire. Well, whatever works!

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