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97 Fairmont V8 electric cooling fan switch position please 

 

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 Post subject: 97 Fairmont V8 electric cooling fan switch position please
Posted: Wed Jan 21, 2015 2:21 pm 
Fordmods Newbie
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Age: 70

Posts: 2

Joined: 9th Jul 2014

Ride: Ford Fairmont EL

Location: Auckland
New Zealand

Am having an overhot problem and wish to test the fan switch. Engine Does not cool down on reduced speed or downhill.
NOT overheating until motorway running and does not show signs of boiling. Needle stops just short of top red block.(Still in normal range ) .Does not seem to affect drive-ability at all.
Cannot hear or see the fan running at any temperature.
Thanks in advance.
Ken
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 Post subject: Re: 97 Fairmont V8 electric cooling fan switch position please
Posted: Wed Jan 21, 2015 10:22 pm 
EFI Guru
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Ride: 351 Vogue,XH 5.0,'17 5.0 Stang

Location: Perth
WA, Australia

Do a self test Ken.
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 Post subject: Re: 97 Fairmont V8 electric cooling fan switch position please
Posted: Thu Jan 22, 2015 10:17 am 
Getting Side Ways
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QLD, Australia

The Cooling switch is the ECU.

The Relays are a common point of failure, as are the fans themselves.

Like Pete said - do a self test.
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 Post subject: Re: 97 Fairmont V8 electric cooling fan switch position please
Posted: Thu Jan 22, 2015 7:55 pm 
Technical Contributor
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Ride: ED Falcon

Power: 133 rwkw

Location: Leeton
NSW, Australia

Mine sits right in the bottom of the normal range... Even without a fan running... Sounds to me like not only do you have a problem with the fans (both should be in by the top of normal)... But your cooling system is in need of a service... When was the last flush? When was the last replacement of the radiator? Thermostat? Water pump? Something doesn't seem right...

The sensor that drives the needle is the same sensor that drives the fans... If the needle registers hot then the ECU would be triggering the fans... Same deal... Self test or manually test the relays and fans... (easy enough to do...)

More or less works like this...

Attachment:
EL Falcon Thermatic Fan Wiring.pdf [72.62 KiB]
Downloaded 74 times


Cheers,
Tim

 

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93 Red ED 5spd Manual Build Thread

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 Post subject: Re: 97 Fairmont V8 electric cooling fan switch position please
Posted: Sat Jan 24, 2015 10:58 pm 
Fordmods Newbie
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Age: 70

Posts: 2

Joined: 9th Jul 2014

Ride: Ford Fairmont EL

Location: Auckland
New Zealand

Thank you Gentlemen. Your advice is much appreciated.
For information Engine flushed within last three months. New water pump and thermostat within the last month. All new hoses.
However. The previous owner ran the car for a couple of years with no additives whatsoever so possible blockage in sections of the rad. Will replace that straight after I have tested the electrics.
Thanks again for your help.
Ken
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 Post subject: Re: 97 Fairmont V8 electric cooling fan switch position please
Posted: Sat Jan 24, 2015 11:44 pm 
Technical Contributor
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Ride: ED Falcon

Power: 133 rwkw

Location: Leeton
NSW, Australia

You can probably get the radiator flow tested before replacing... Might be cleanable... Might be blocked with insects or grass seeds in between the cores too... Might just need a blow out with an air compressor...

Cheers,
Tim

 

_________________

93 Red ED 5spd Manual Build Thread

Performance: Complete AUII VCT Wiring & Power Train, Pacey Headers, 2.5" Exhaust, Exedy Clutch, DBA Rotors
Visuals: FG XR Wheel, XR Front, 17's, BA 5 Spd Shifter, BA Ghia Window Switches, NL Cluster
Tunes: 8" Pioneer Sub, JBL Speakers, Clarion Double DIN Headunit

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 Post subject: Re: 97 Fairmont V8 electric cooling fan switch position please
Posted: Sat Jan 24, 2015 11:44 pm 
Technical Contributor
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Age: 27

Posts: 3705

Joined: 27th Sep 2006

Gallery: 20 images

Ride: ED Falcon

Power: 133 rwkw

Location: Leeton
NSW, Australia

Condensor could be blocked too!

Cheers,
Tim

 

_________________

93 Red ED 5spd Manual Build Thread

Performance: Complete AUII VCT Wiring & Power Train, Pacey Headers, 2.5" Exhaust, Exedy Clutch, DBA Rotors
Visuals: FG XR Wheel, XR Front, 17's, BA 5 Spd Shifter, BA Ghia Window Switches, NL Cluster
Tunes: 8" Pioneer Sub, JBL Speakers, Clarion Double DIN Headunit

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