Overheating but i dont think its the seals??

Started by gear1275, June 09, 2009, 08:10:33 PM

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Grizzly

you could test the fan circuit when you have it apart by putting a Jumper across the to connections in the Fans thermo switch, this should turn them on (not sure if you need the ignition on or not?)

If they don\'t come on then you know its the wiring/Fans, if they do work then its most likely going to be the switch.

If you are removing the Thermostat Housing to check the Switch etc then its well worth your while to check the Thermostat at the same time.

Another tip, if you do remove the Thermostat housing when you replace it cable tie the Plugs onto the Switches, you will find two switches back there, The one with a single wire is the ECU temp and often causes all sorts of running issues when its been disturbed.

ro284

Quoteyou could test the fan circuit when you have it apart by putting a Jumper across the to connections in the Fans thermo switch, this should turn them on (not sure if you need the ignition on or not?)
The FD only has one wire to the Thermoswitch! if you have the sensor/switch with 2 wires on it\'s the wrong one, if you short them you may damage the ecu,
James i\'m still ill. will try and get the wire code for thermoswitch tomorow, or p.m me your mobile number, ill talk you through it,
Bob

gear1275

bob, i will pm you my number as im not sure of where the thermoswitch even is!! thanks for all replys

ro284

Search for Bob: ro284\'s - FD Temp guage and Thermoswitch mod.  (around april 2007,) There is i pic in there of where the Thermoswitch is, just under the alternator at the back of Stat housing, There are two sensors the one you want has a single wire. But before going that far the first thing to do is to check the fan circuit is working, by doing what the Thermoswitch does ie-ground the single wire to it. but do this at the relays, this will tell you if the fans are ok in 2 minutes! if not the problem will be a broken wire to the thermoswitch (most likely and easy to wire) or faulty Thermo, un-likely. no phone number as yet!
Bob

gear1275