elmustang5.0

my car overheated a couple of times due to a bad hose and now that i fixed the hose, the fan wont start. is there something i can check to make sure that the fan doesnt work before i buy another one? thanks

elmustang5.0

anyone?

86 5.0L

lol, its a message board, not a live chat, give it more the 20 minutes

Derf00

Couple of things, Unplug the power harness to the fan and wire it directly to the battery or + on the battery and a solid ground. If it starts up, then either the relay is bad, a fuse is blown, or the fan switch is bad.

red95gtconvert

Check your ECT sensor on the front of the lower intake,a bad one will prevent the fan from coming on. Unplug the connector the to the ECT sensorand start the engine, ifthe fan runs you found the problem.

HACKGT350

first of all what fan is it how is it wired up? and they are right put the pos and neg wire straight on the battery that will tell you if it works or not. i thought mine wasnt any good but it ended up being the ground

elmustang5.0

its the stock electric fan. once i unplug the harness which wires do i hook up to the pos and negon the battery?

mattdel

did you burp the system correctly when you refilled the coolant? an air pocket at the sensor would prevent temp readings

elmustang5.0

how do you burp the system? i should still wire up the fan directly to the battery to make sure it works right? if it does turn when its wired up directly what needs to be replaced?

mattdel

start the car up cold and take the rad cap off. let it run until its at operating temp. once it hits the temp that the thermostat opens, the rad fluid will suck down. fill it back up, and pop the cap on. done.