Help With Cooling Fan Problem

[Nojug]

pushed my wifes 87 T outside to start after some internal motor investigation started motor w/ds hooked up and cooling fan will not run .ds says fan should be running .turned on ac still no run.at 200*I put it back in garage & checked fuses,all seem ok Im really weak on electrical probs is there a schematic or diagnostic procedure available here or archives? thanks nojugs dad

 

[BandAid]

I just did this about 1/2 hour ago,,Hold a wire fron the + side of the battery to the resistor at the fan,hold it to one side and then the other fan should pretty much run from each side of the resistor,,I could not reach the resitor so I just held it to the terminal on the fan,,just follow the wires from the resistor...

On my white T the fan worked( but I knew that already)
On my Grey T ,I was running hot one day ,finally I checked it today,,No fan either terminal,so I guess it totlally fried out...
HTH
Dennis

 

[Nojug]

if I run hot wire to one side of fan do Ineed to run ground wire from other terminal ? Like I said electrical problems are my weakness thanks

 

[petesgn]

if I run hot wire to one side of fan do Ineed to run ground wire from other terminal ?

no it has ground already.


heres the diagram

http://www.gnttype.org/techarea/images/wiring_images/enginecomp.jpg

 

[84GNwith87eng]

Maybe the relay is bad? How can you check if its bad?

 

[Nojug]

ran wire from battery to bottom terminal on fan,fan runs,delay relay was replaced about a year ago,hi&lo are original as far as I can tell. if one of those were bad I should still have hi or lo fan speed not fan not running at all.Is that assumption correct?Where should Igo next?

 

[petesgn]

ran wire from battery to bottom terminal on fan,fan runs,delay relay was replaced about a year ago,hi&lo are original as far as I can tell. if one of those were bad I should still have hi or lo fan speed not fan not running at all.Is that assumption correct?Where should Igo next?

Get a test light ,unplug the high and low relays , turn you ignition switch on (without starting the car ) and check to see if theres + power at the red wire and the brown wire of each of the fan relay connectors .