Cooling Fan Relay Plug

[Byrdock]

Does the cooling fan relay on a 88 4.0 use a 5 terminal relay like the fuel pump relay? My plug has 4 wires for the outside terminals, but nothing in the center. The relay is a 4 terminal relay but I can't find any parts places that have one like it. Do I have to go to the dealer for this part?

[HOrnbrod]

http://www.rockauto.com/catalog/raframecatalog.php?carcode=1179839&parttype=3060&a=Search%2Bfor%2B1988%2BJEEP%2BCHEROKEE%2BCHIEF%2B4.0L%2B242cid%2BL6%2BMFI%2B%2528M%2529&ck[iD]=0&ck[idlist]=0&ck[viewcurrency]=USD&ck[php_SESSION_ID]=f75r45lbfsoapp3l2v4jnmi096

[Byrdock]

Thanks!! I didn't think to check Cherokee parts.

[onlyinajeep726]

You can just use a 5-prong relay.  They work the exact same.  The 4-prong one is just a 5-prong with that center one missing. 

[HOrnbrod]

You can just use a 5-prong relay.  They work the exact same.  The 4-prong one is just a 5-prong with that center one missing. 

 

Sure, if you want to hack off the unused 5th relay pin to fit the 4-pin relay socket. Also the aux fan relay is a 40A relay; the other common 5-pin relays used are only 30A.

[onlyinajeep726]

All three of my Renix era XJ's have a 5-prong socket.  As far as the 40A thing, I'm not saying you're wrong, however, all three of mine had the stock 4-prong relay installed and all of them were 30A.  The stock fan pulls somewhere in the neighborhood of about 23-25 amps IIRC.  I don't know what's going on there, but honest to goodness all three have 5-prong sockets.