1996 ford tarus coolant fan circuit - Hot Rod Forum : Hotrodders Bulletin Board
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Old 03-05-2007, 01:46 PM
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1996 ford tarus coolant fan circuit

One of my radiator coolant fan motors siezed yesterday and I replaced the motor. Now neither fan will operate when the motor gets to operating temp and will run hot without any fan coming on.
I don't have a diagram showing which fuses apply to which circuit, an have no owners manual to find what fuse controls the cooling fan circuit.
I visually checked all the fuses in the underhood electrical box and found no blown fuses.
Does anyone have a link to a diagram for this circuit, or have any suggestions on a likely problem that could be caused by that cooling fan motor seizing?
TIA,
MIke

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Old 03-05-2007, 03:26 PM
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Make sure that the grounds are connected for the fans. This may have been disturbed when you replaced the motor.

Check the fuse block again. There must be a directory to determine which fuse serves which load. Usually the fuse box cover has this info.

Check the fan fuse with an ohmmeter or probe it with a test light. Visual check is not good enough. If it's hot on one side and not on the other side it's blown.

The fans will have a relay(s). This could be bad.

vicrod
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Old 03-05-2007, 04:20 PM
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Doc here,

If this is a stock fan circuit, and the fan motor Rotor locked (froze up) , I'd look for a fuse link to be open somewhere at or near the battery cable. These use fuse links or MAXI fuses at the power support wire to The relay contact that operates the fan circuit when the relay closes from the sender switch.

If the link is good (or you can't find it) , locate the fan relay..a rotor lock can cause high current , enough to burn the contact out..( ohm out the 30 and 87 terminals with power and ground jumped to the relay coil, out of It's socket, it should be 000, on energize, and infinite on de~energize..) If that is good and the coil goes "Click"..check the #30 or #87 contact for power at all times, If missing, the link is bad , you'll have to find and replace it.

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Old 03-06-2007, 05:17 AM
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Thanks to you both. I'm about to leave now to check the circuits, relay, fusible links ect. I'll post what results I find later.
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Old 03-06-2007, 02:39 PM
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Doc here,

Keep us updated!

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