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FerrariGTB78
Junior Member
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Wednesday, April 16, 2003 7:15 AM
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I apologize, becue I intially posted this thread in the "Mechanical" topics section, when it should've been posted here under "Electrical" issues.
I have only had one truly baffling technical issue with my Ferrari (in addition to the oil ressure quetion that I initilly inquired about), and it regards the screw-in sensor in the radiator which (I assume) is responsible for turning on the cooling fans.
I have replaced the sensor in my car (whih cost me about $20.00, plus shipping) located on the bottom of the passenger-side of the radiator, because the fans initially didn't ever come on. I applied 12 Volts directly to the fans as a diagnstic measure, and they do in fact work. However, after replacing the sensor in the radaiator, and replacing the corresponding relays in the dashboard, the fans still don't come on when the appropriate temperature is reached. A little confusing... I suppose a break in the wiring harness is not entirely out of the question, but I'm doubting it.
Any thoughts?
Thank you in advance!
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Joseph A. Ruotolo
Director of Engineering
Northeast Design Associates
Direct - (570) 822-8895
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BillBadurski
FCA Technical Chairman
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Thursday, April 17, 2003 10:36 PM
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I always connect an ohmeter to these switches and place them in a pan of water on my stove, along with a high-temp thermometer. The switch should close (make contact) at about 183 degrees, thereby showing needle movement on the ohmeter. If this works according to plan, the switch is now qualified. In the car, closing the switch allows the fan circuit to go to ground and start the motors. If you jumper across the switch to ground and the fans run, the wiring in the circuit is then qualified. If not, there's a problem in the harness, relays, or fuses/holders.
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William V. Badurski
FCA Technical Chairman
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