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Stesso

Diagnose Fan System Failure and Implement Temporary Fix

0:51
22:43
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LSA Swap 1972 Monte Carlo: Tried Going to Dyno..What Happened? (Bonus Kasey Kahne Race Shop Tour!)

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What happens here

After a short drive, the car overheats, and the owner discovers that the 30-amp fan fuse for fan 1 has blown. He realizes that despite trying to share the load between two fan outputs, the fans are not activating simultaneously, causing the fuse to pop. Lacking suitable relays for a proper fix, he bypasses the relay system and hardwires the fan directly to the battery using 10-gauge wire. This temporary solution aims to run the fan at low speed to prevent further overheating.

Goal: Identify fan failure cause and create a temporary cooling solution

Tools and materials

  • 10-gauge wire — Used to directly connect the fan to the battery for a temporary fix
  • 30-amp fuse — The blown fuse for the cooling fan
  • Car — The vehicle experiencing the issue
  • Pliers — For securing wire connections
  • Wire cutters — For cutting the 10-gauge wire

What they say

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how far did we make it logan um i'm pretty sure you pushed it to this point yeah as soon as you turned it on it it just smoked the fan fuse see i ran it has two fan outputs uh and i ran them both to the high speed of this fan so they could like share the load well i guess they don't kick on or send a signal at exactly the same time and it just it popped the 30 amp fan one fuse instantly and i don't have any relays on hand that could even do this so we're just taking 10 gauge wire straight to the freaking battery hardwiring at low speed because this fan is so big the radiator is so big we got a fully enclosed shroud now low speed should be fine as long as we stay moving i can't imagine it would be any worse than the old fans yeah there's no way yeah i mean think of the original fan that was on there yeah that you had before and that that did the same thing that kept it cool until you were stopped for too long i'm gonna get stunned by a freaking bee it's behind you still go this way the camera's still on [Laughter] i know i know don't run from the bee don't swat at it it'll come back no the lawyer will come back no matter what you do it sure seems like it let's uh let's go on the road like show you guys something real quick that has helped both of us a lot recently and

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