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Thermo Fans in Ef arent coming on. 

 

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 Post subject: Thermo Fans in Ef arent coming on.
Posted: Tue Apr 03, 2007 4:23 pm 
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Hey guys

My thermo fans arent turning on, my cars over heating and is in the R level.

Its also running s**t as on fuel! prob about 350 to a tank, Could that be the reason?

What could be wrong the thermo fans?


Cheers guys.
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Posted: Tue Apr 03, 2007 9:01 pm 
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Firstly what sought of condition are the injectors in. They probably need servicing. Cost about $ 130-140 if your gonna remove them yourself.

Secondly what sought of condition are the leads in. Misfiring?

The falcons have a problem with Map Sensors. If they are faulty they tend to run rich as. Make sure the vacuum hoses are connected up properly.

About your thermo fans. Relay? Fuses? Switch? Are they all right. Have you got a circuit through them?

If you bridge the wires between the fan switch, do the fans come on? Please use a test light with a globe in it or a wire with a fuse in it when trying this. If they don't come on, you will have to trace where the break is. Again, Relay, switch or fuses or broken wire.

 

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Posted: Tue Apr 03, 2007 9:02 pm 
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Gday mate, got a new set of injectors coming soon, fuel pump is prob rooted, I will try that with the thermo fans, And i do have a vaccume leaking somewere that sounds near the passenger side of the dash.


Cheers bud


and leads hjavent been replaced since i got the car ( 1 year 4 months ago)
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Posted: Tue Apr 03, 2007 9:26 pm 
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fans have low and high speed relays.
make sure fans are doing both!!
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Posted: Tue Apr 03, 2007 9:27 pm 
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Just forgot. With the thermo fan problem.

To test if relay is working. Try swaping relays around. get a good relay and swap it to see if relay is the problem.

Switch i told you about it all ready.

Check fuses.

If you got a signal throught switch circuit by bridging them and no fans come on. you probably got crook fans.

 

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Posted: Tue Apr 03, 2007 9:55 pm 
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Vac leak near pass side of motor may well be MAP sensor hose. This will make motor run as rich as if it is off or split. Check hose on MAP to inlet manifold.
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Posted: Tue Apr 03, 2007 10:33 pm 
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To check the thermo fans:

start the car and pop the bonnet.
Turn the air cond on and put it on front window demist only.
Both the thero fans should be going with that done.

 

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Posted: Wed Apr 04, 2007 1:01 am 
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this happend in mine... was the auto tx fuse....dash fuse box, top row..

also check the underbonnet fuses as there is one there as well...

 

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Posted: Wed Apr 04, 2007 1:33 am 
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From memory the thermo fan relays are in front of the airbox.
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Posted: Thu Apr 05, 2007 10:56 pm 
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Thermo fans are working now, think it was a fuse.



New question , my car is still over heating ( In the R range of normal) I just got a reco'd radiator from a guy off the forums here, lower and top radiator hose has been replaced, new thermostat.... and the coolant is deciding to bubble and go everyware..


ANy idea's guys?


Cheers
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Posted: Fri Apr 06, 2007 3:13 am 
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Well if you've done all the obvious, it could be head gasket, or impeller on the water pump.
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Posted: Fri Apr 06, 2007 10:06 am 
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I dont think it could be a headgasket, altho i might be wrong but its not got the milky oil signs...
Could be the water pump?



Cheers walker
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Posted: Fri Apr 06, 2007 11:09 am 
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Did you use a genuine Ford thermostat? If so you may find that the running temp has gone up . I recently had a major fuel consumption prob and replaced sensors and thermostat etc to try and improve it. Genuine Ford stat is a higher temp than aftermarket and will raise your "Normal" temp. Have you access to a non contact thermometer? I used one and my actual engine temp at the thermostat housing is around 90 when guage is just above half eay up the "normal" range.
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Posted: Fri Apr 06, 2007 11:36 am 
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Cheers bud, i have my old thermostat in my garage that seemed to work previously, maybe the new thermostat i got was a dodgey one or bad quality.


Is 91 degree for the thermostat's right?


Im also finding a bit of oil on the lower right radiator hose, around the edges of it.... dont know why...


Cheers guys.
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