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05-27-2010, 10:57 AM
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CC Member
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Join Date: Apr 2006
Location: Oakville,
Ont
Cobra Make, Engine:
Posts: 322
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Not Ranked
over heating, fans not coming on!
my brothers car started to over heat due to the cooling fans not turning on, he has an older car with out the over ride switch on the dash... what would be the first steps in tracking down the problem? where to look first? fuses / relays/ wiring?
any info would be great
thank you
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05-27-2010, 11:58 AM
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CC Member
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Join Date: Aug 2006
Location: Jersey Shore,
NJ
Cobra Make, Engine: Superformance SPF#2572, 427 S/O 2X4
Posts: 379
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Not Ranked
One of the two fans stopped working on my car. Swapped the relay from the good fan to the bad, and it started working again. Replaced both relays to be safe.
__________________
Peace through superior firepower...or is it horsepower? Either way, more is always better!
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05-27-2010, 12:08 PM
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CC Member
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Join Date: Apr 2006
Location: Oakville,
Ont
Cobra Make, Engine:
Posts: 322
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Not Ranked
where are the relays located?
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05-27-2010, 12:08 PM
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Senior Club Cobra Member
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Join Date: Jun 2007
Location: Covington,
wa
Cobra Make, Engine: Superformance # 532, 466 BB, 560HP
Posts: 3,027
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Not Ranked
I had a fan stop and it was just a loose wire. It was still in place, just not far enough in to be engaged.
__________________
John Hall
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05-27-2010, 12:56 PM
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CC Member
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Join Date: Aug 2006
Location: Jersey Shore,
NJ
Cobra Make, Engine: Superformance SPF#2572, 427 S/O 2X4
Posts: 379
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Not Ranked
The relays should be located under the dash to the left of the steering column.
__________________
Peace through superior firepower...or is it horsepower? Either way, more is always better!
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05-27-2010, 01:00 PM
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Senior Club Cobra Member
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Join Date: Oct 2006
Location: Santa Cruz,
CA
Cobra Make, Engine: SPF 2613 Titanium w/Black, Roush 402SR
Posts: 4,097
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Not Ranked
Quote:
Originally Posted by Silverback51
I had a fan stop and it was just a loose wire. It was still in place, just not far enough in to be engaged.
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Same thing happened to me. I pushed it back on and haven't had any problems since.
__________________
Doug
No stop signs, speed limit - Nobody's gonna slow me down - Like a wheel, gonna spin it
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05-27-2010, 01:02 PM
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CC Member
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Join Date: Sep 2002
Cobra Make, Engine: SPF#0760
Posts: 3,405
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Not Ranked
Older cars have only one fan relay...what is his car number?
Has he replaced his relay?
Can he make both fans work with a jumper across the temp switch on the lower left side if the radiator?
Do this first to isolate the problem.
__________________
Wiring Diagrams: SPF MKII, MKIII, GT40, CSX7000, CSX8000, Corvette Grand Sport, and Shelby Sebring, Bondurant & Cinema Tribute Cars.
Owner’s Manuals: SPF MKII, CSX7000, CSX8000, Sebring, Bondurant, Cinema Tribute Cars $ GT40’s..
Large, easy to read and trace schematics with part numbers, wire colors, wire gauge, fuses, and electrical upgrade information. Trouble-shooting and replacement part numbers for those roadside repair adventures.
SPFWiringDiagrams@Comcast.net
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05-27-2010, 01:17 PM
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CC Member
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Join Date: Mar 2004
Cobra Make, Engine: spf 2112 *427 stroker windsor
Posts: 333
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Not Ranked
i think his car # is 385
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05-27-2010, 03:30 PM
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CC Member
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Join Date: Aug 2007
Location: Carlsbad,
Ca
Cobra Make, Engine: SPF 2932 with 438 Lykins Motorsports engine. Previous owner of FFR 5452.
Posts: 2,616
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Not Ranked
Have him put his hand close to the radiator after warming up the car and feel for heat. If hot, then he has a fan problem. If cool, then he has a thermostat problem.
__________________
Jim
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05-27-2010, 03:42 PM
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CC Member
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Join Date: Jul 2006
Location: Ottawa,
ON
Cobra Make, Engine: 2002 Superformance w/392 stroker
Posts: 1,622
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Not Ranked
Quote:
Originally Posted by carmine
i think his car # is 385
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pretty sure it's #1398 - UPDATE: turns out that I'm mistaken about this; don't know where I got my (mis)info...
__________________
"Anyone who drives faster than you is a Maniac,
and anyone who drives slower is an Idiot." - George Carlin
Last edited by SunDude; 05-30-2010 at 06:53 AM..
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05-29-2010, 12:45 PM
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CC Member
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Join Date: May 2008
Location: San Jose CA,
CA
Cobra Make, Engine: SPF_R_/BRG/FRBoss302/327CI/FordEFI/Under_Car_Exh/
Posts: 2,523
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Not Ranked
The relays in these things run hot for the fans.
-- so a periodic replacement is not out of the question.
Steve
__________________
Steve SPF 2734 MK3 / Brock Coupe #54- panavia.com
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05-29-2010, 01:13 PM
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CC Member
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Join Date: May 2000
Location: Northern VA,
VA
Cobra Make, Engine: Classic Roadsters
Posts: 2,765
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Not Ranked
Quote:
Originally Posted by PANAVIA
The relays in these things run hot for the fans.
-- so a periodic replacement is not out of the question.
Steve
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if they are 30 amp, you can replace them with 50 amp.
__________________
LIFE IS TOO SHORT TO WORRY ABOUT GOOD GAS MILEAGE
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Utinam logica falsa tuam philosophiam totam suffodiant!
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05-30-2010, 09:15 PM
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CC Member
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Join Date: May 2008
Location: San Jose CA,
CA
Cobra Make, Engine: SPF_R_/BRG/FRBoss302/327CI/FordEFI/Under_Car_Exh/
Posts: 2,523
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Not Ranked
There are 70A aircon relays as well, but then I would wonder about the capability of the wire to transport the amps.
40a each would be my comfort level, the other considersation would be the fans themselves. Are the fan motors aged, corroded or damaged in such a way where they take more juice to operate ?
If they don't spin freely by hand you may have a fan motor issue
Steve
__________________
Steve SPF 2734 MK3 / Brock Coupe #54- panavia.com
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