Hey guys, got one we're having trouble figuring out, could use a few ideas to try. We have a 40 ford here in the shop, small block Chevy. Runs fine till it gets to 190 degrees then the motor dies but ONLY if the electric fan is running. Turn the fan off and it'll stay running till it get to 220 (haven't push the temp higher then that), Turn the fan on anytime it's 190 or higher and it's like a kill switch, motor dies instantly. Below 190 you can turn the fan on and off with no issues. Fan is wired direct thru a switch and relay, no termo switch. Got me puzzled, if it died always at 190 I'd say a coil or module, if it died anytime the fan was on I'd think the fan was drawing to many volts but I can.t correlate temp and electrical tied together causing an issue. Suggestions? I'm already bald enough, hate pulling more hair on this!