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Forums › The Car › 206 Problems › Radiator fan for a 206GTI |
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 Posted: Sat Mar 03, 2012 6:15 am |
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Joined: Oct 05, 2011
Posts: 672
Trade Rating: +2
Location: Notts
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Not Quite sure what the problem is but the Radiator cooling fan wont actually turn on until the cars basically redlining the warning sign to say its overheated. any ideas ? :/ or what i could check ?
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Posted: Sat Mar 03, 2012 7:22 am |
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Joined: Feb 08, 2010
Posts: 7045
Trade Rating: +5
Location: In the garage
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Does it work with the air conditioning on? If it does then it's not the fan or wiring/relays at fault.
If it doesn't work when the air conditioning is on then chances are the wiring and relays will be heavily corroded or even broken. It's not difficult to replace the wiring and clean up the terminals on the relays.
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| 2001 GTi 138, Bilstein Sprint dampers, H&R springs, 21mm Peugeot Sport torsion bars, 22mm rear ARB, Peugeot Sport Group A wishbones, 283mm discs, Goodridge stainless hoses, Maniflow 304 grade 4-2-1 2.5" manifold and system, 200 cell cat, Richard Longman head, 45mm Jenvey throttle bodies, 9.5mm TB spacers, 90mm air horns, Jenvey throttle linkage, Jenvey fuel rail, Aeromotive and Goodridge fuel fittings and braided hose, ITG sausage filter, Radtec custom radiator, Piper Ultimate Road cams, Piper vernier pulleys, Omex 600 ECU. Saxo electric PAS pump, Vibra Technics engine mounts. Samco coolant hoses, TTV steel flywheel, 4.76 final drive ratio, 307 CC 180 ratios. 2019 BMW 530i. 2017 Mercedes C300 convertible. | |
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Posted: Sat Mar 03, 2012 7:30 am |
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Joined: Sep 05, 2011
Posts: 170
Trade Rating: 0
Location: Leeds
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My guess is the coolant temp sensor is at fault. what i would do is check the resistance of the coolant temp sensor.
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Posted: Sat Mar 03, 2012 7:36 am |
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Joined: Feb 07, 2010
Posts: 13077
Trade Rating: +65
Location: England
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I have a working Coolant sensor, as well as a thermostat, radiator, relay, and radiator if you need any parts
I also could come run a diag if you want, to see if that can detect the problem, and run a few tests
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Last edited by Lee on Sat Mar 03, 2012 7:48 am; edited 1 time in total
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Posted: Sat Mar 03, 2012 7:43 am |
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Joined: Feb 08, 2010
Posts: 7045
Trade Rating: +5
Location: In the garage
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Another quick check is to unplug too coolant temp sensor. That way the ECU doesn't know how warm the engine is and so to protect the engine from getting too hot it puts the fan on.
If your temp guage is normal then the coolant sensor will be ok.
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| 2001 GTi 138, Bilstein Sprint dampers, H&R springs, 21mm Peugeot Sport torsion bars, 22mm rear ARB, Peugeot Sport Group A wishbones, 283mm discs, Goodridge stainless hoses, Maniflow 304 grade 4-2-1 2.5" manifold and system, 200 cell cat, Richard Longman head, 45mm Jenvey throttle bodies, 9.5mm TB spacers, 90mm air horns, Jenvey throttle linkage, Jenvey fuel rail, Aeromotive and Goodridge fuel fittings and braided hose, ITG sausage filter, Radtec custom radiator, Piper Ultimate Road cams, Piper vernier pulleys, Omex 600 ECU. Saxo electric PAS pump, Vibra Technics engine mounts. Samco coolant hoses, TTV steel flywheel, 4.76 final drive ratio, 307 CC 180 ratios. 2019 BMW 530i. 2017 Mercedes C300 convertible. | |
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Posted: Sun Mar 04, 2012 6:04 am |
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Joined: Oct 05, 2011
Posts: 672
Trade Rating: +2
Location: Notts
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wouldn't unplugging the coolant sensor effect performance and be rather noisy leaving the fan on ? 
when i get time think ill rip it out and see if all the wiring is still in place thanks guys
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Posted: Sun Mar 04, 2012 6:15 am |
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Joined: Feb 07, 2010
Posts: 2721
Trade Rating: +6
Location: UK
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| burge564 wrote: |
wouldn't unplugging the coolant sensor effect performance and be rather noisy leaving the fan on ?
when i get time think ill rip it out and see if all the wiring is still in place thanks guys |
You only need to do it temporarily to check it. Not to leave it like it.
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Posted: Sun Mar 04, 2012 9:45 am |
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Joined: Feb 08, 2010
Posts: 7045
Trade Rating: +5
Location: In the garage
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You don't even need to drive it to test!
If the fan was noisy wouldn't that tell you something??? Like the fan is working???
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| 2001 GTi 138, Bilstein Sprint dampers, H&R springs, 21mm Peugeot Sport torsion bars, 22mm rear ARB, Peugeot Sport Group A wishbones, 283mm discs, Goodridge stainless hoses, Maniflow 304 grade 4-2-1 2.5" manifold and system, 200 cell cat, Richard Longman head, 45mm Jenvey throttle bodies, 9.5mm TB spacers, 90mm air horns, Jenvey throttle linkage, Jenvey fuel rail, Aeromotive and Goodridge fuel fittings and braided hose, ITG sausage filter, Radtec custom radiator, Piper Ultimate Road cams, Piper vernier pulleys, Omex 600 ECU. Saxo electric PAS pump, Vibra Technics engine mounts. Samco coolant hoses, TTV steel flywheel, 4.76 final drive ratio, 307 CC 180 ratios. 2019 BMW 530i. 2017 Mercedes C300 convertible. | |
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Posted: Sun Mar 04, 2012 10:18 am |
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Joined: Oct 05, 2011
Posts: 672
Trade Rating: +2
Location: Notts
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ohh nono the fan comes on only when the temperature reading is in the red and the car goes batshit telling me to stop last time i was in traffic the radiator pipe just exploded from the pressure that had built up :/
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Posted: Sun Mar 04, 2012 10:39 am |
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Joined: Feb 08, 2010
Posts: 7045
Trade Rating: +5
Location: In the garage
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Well to me that suggests the relay, resistor or wiring to the relay terminals is knackered.
So have you switched the engine on with the coolant sensor disconnected?
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| 2001 GTi 138, Bilstein Sprint dampers, H&R springs, 21mm Peugeot Sport torsion bars, 22mm rear ARB, Peugeot Sport Group A wishbones, 283mm discs, Goodridge stainless hoses, Maniflow 304 grade 4-2-1 2.5" manifold and system, 200 cell cat, Richard Longman head, 45mm Jenvey throttle bodies, 9.5mm TB spacers, 90mm air horns, Jenvey throttle linkage, Jenvey fuel rail, Aeromotive and Goodridge fuel fittings and braided hose, ITG sausage filter, Radtec custom radiator, Piper Ultimate Road cams, Piper vernier pulleys, Omex 600 ECU. Saxo electric PAS pump, Vibra Technics engine mounts. Samco coolant hoses, TTV steel flywheel, 4.76 final drive ratio, 307 CC 180 ratios. 2019 BMW 530i. 2017 Mercedes C300 convertible. | |
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