Printable Version | Subscribe | Add to Favourites
New Topic New Poll New Reply
Author: Subject: fiesta thermostat
robertst

posted on 14/6/06 at 03:29 PM Reply With Quote
fiesta thermostat

i have a fiesta top thermostat housing with the connecting plugs for a fan, but when i took it out of the fiesta there was a third cable i had to disconnect from the bottom part of the thermostat. and now i notice there isnt one of these connectors in the sierra, so will it work? what is that third cable for? Rescued attachment thermostat.jpg
Rescued attachment thermostat.jpg






Tom

View User's Profile Visit User's Homepage View All Posts By User U2U Member
SeaBass

posted on 14/6/06 at 03:42 PM Reply With Quote
What is next to the fan switch..

Looks like a temp sender for the gauge...

My fan switch looks more modern with a connector arrangement and next to it is a pipe connection for the expansion tank.

[Edited on 14/6/06 by SeaBass]






View User's Profile View All Posts By User U2U Member
Markp

posted on 14/6/06 at 04:09 PM Reply With Quote
rip the black tape from the wires, you will only need the two to the fan switch the other can be disgarded ( personally I would bin all the wires and make new ones with a new fan switch)

ATB

Mark

View User's Profile E-Mail User View All Posts By User U2U Member
robertst

posted on 14/6/06 at 11:42 PM Reply With Quote
ok... thats one of the possibilities that i thought. but how exactly can it work if under these two main connectors there is only a metal plate? how does this thermostat send the signal to the fan?

i think the third connector is there to give a comparison of a temperatire and then the fan kicks in....

anyways... i'm thinking of just plugging it in, of course with new wiring as the cables are completely crimped, but i guess it wont work...





Tom

View User's Profile Visit User's Homepage View All Posts By User U2U Member
Markp

posted on 15/6/06 at 06:23 PM Reply With Quote
One metal plate???

Ok two wires, there is a switch in the body that detects the temperature of the water, when it get to the required temp the switch makes and sends a current through the switch and to the fan.

They aren't rocket science so don't look too deep in to it

ATB

Mark

View User's Profile E-Mail User View All Posts By User U2U Member
robertst

posted on 16/6/06 at 02:35 AM Reply With Quote
see. i'm being a bit thick about this but thats it. the third cable goes to the temp switch.
wait....
edit: wot? "makes a current"? the problem i have is understanding where does the fan get its energy from? i presume its from the alternator.

[Edited on 16/6/06 by robertst]





Tom

View User's Profile Visit User's Homepage View All Posts By User U2U Member
Markp

posted on 17/6/06 at 01:23 PM Reply With Quote
depends how you want to do it, some people use relays some don't,

If you don't use a relay you would have a permanent live from the fuse box, to the temp switch, then from the temp switch to the fan, the fan to earth. So when the temperature increases the temp switch will go from open circuit to closed circuit and send the power from the fuse box to the fan.

I'm crap at explaining things so someone else can explain the relay circuit

Sorry

ATB

Mark

View User's Profile E-Mail User View All Posts By User U2U Member
DIY Si

posted on 17/6/06 at 01:29 PM Reply With Quote
It's not much different, except the temp switch triggers the relay. This then switches the fan on/off.
View User's Profile E-Mail User View All Posts By User U2U Member

New Topic New Poll New Reply


go to top






Website design and SEO by Studio Montage

All content © 2001-16 LocostBuilders. Reproduction prohibited
Opinions expressed in public posts are those of the author and do not necessarily represent
the views of other users or any member of the LocostBuilders team.
Running XMB 1.8 Partagium [© 2002 XMB Group] on Apache under CentOS Linux
Founded, built and operated by ChrisW.