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Topic: Cooling fans on full blast (Read 766 times) |
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Malcolm
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Cooling fans on full blast
« on: Sep 12th, 2006, 6:16pm » |
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As soon as I put the AC on in my S reg 2.3 the rad cooling fans come on full blast and stay on till I turn the ignition off, even if I turn the AC off. This happens even when the engine is stone cold. Any ideas?
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Simmo
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Re: Cooling fans on full blast
« Reply #1 on: Sep 12th, 2006, 7:05pm » |
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Is the other control set to 'screen'?. If so alter the position and see if that affects things.
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TiberiuS
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Ex. 1996 2.3 Ultima - RIP P789 KHJ
 
Posts: 2257
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Re: Cooling fans on full blast
« Reply #2 on: Sep 12th, 2006, 7:51pm » |
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I thought they were both supposed to come on with the AC
Mine do and I don't remember them always going off with the AC even when the engine's cold, I have a 2.3 like you.
Regards, Bruce.
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Bruce - '07 Jaguar XKR coupe, '95 Jaguar XJ Sport 4.0, '82 Ford Capri 2.0 Ghia, '15 Honda Civic (sloooooww..)
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scorpio_man
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Ford Kuga awd
Posts: 5654
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Re: Cooling fans on full blast
« Reply #3 on: Sep 12th, 2006, 8:08pm » |
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hi there
sound like a pressure issue. when was it re-gassed? the fans should run in slow mode as a default, cycling on and off.
when there's a pressure issue (low or high), they come on in high speed mode all the time.
hth
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Malcolm
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Re: Cooling fans on full blast
« Reply #4 on: Sep 14th, 2006, 12:50pm » |
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Thanks Guys. I had it re-gassed earlier in the summer. I'm sure it didn't happen prior to that.
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Malcolm
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Re: Cooling fans on full blast
« Reply #5 on: Sep 14th, 2006, 10:15pm » |
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Sorted. It was a fault in the wiring to the thermal switch in the A/C unit. Tiberius, if you have the same fault as me than you need to get it seen to because it will ruin the fuel economy. However it may be that what you see is the fans at low speed., which is normal. At full speed they sound like two RB211s.
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TiberiuS
Senior Member
Ex. 1996 2.3 Ultima - RIP P789 KHJ
Posts: 2257
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Re: Cooling fans on full blast
« Reply #6 on: Sep 14th, 2006, 10:20pm » |
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Sorry m8, mine are at slow speed  . Once on a hot day they did go full blast and yes, they did sound like a jet  .
Please don't curse me with more electrical gremlins, I managed to get mine all sorted a while back  .
Regards, Bruce.
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Bruce - '07 Jaguar XKR coupe, '95 Jaguar XJ Sport 4.0, '82 Ford Capri 2.0 Ghia, '15 Honda Civic (sloooooww..)
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Tompion
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1997 2.3 Ultima estate.
Posts: 2932
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Re: Cooling fans on full blast
« Reply #7 on: Sep 14th, 2006, 10:29pm » |
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on Sep 14th, 2006, 10:15pm, Malcolm wrote:| you need to get it seen to because it will ruin the fuel economy. |
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What economy
Dave
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ABS multiplug wheel sensor pins MK IV or MK 20
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