Thread: 302 Stroker??

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General rule of electronics is to control the hot wire not the ground.

It works either way, but sometimes it can preclude problems.

If the fan is really injecting AC into the system, then I'd want to totally isolate it: use a double pole relay and cut ground AND hot. AND if the thermostat switch is too low, then the fan will be on at speed, whether It's helping or not.

Originally Posted by firebird77clone

If the fan is really injecting AC into the system, then I'd want to totally isolate it: use a double pole relay and cut ground AND hot. AND if the thermostat switch is too low, then the fan will be on at speed, whether It's helping or not.

One of my thoughts for testing if it was even related to the fans, was to ground the fans and let them run, take a spin down the highway and see what happens with them running. This should easily prove if they are even a culprit!