Radiator Fan again
Author
Discussion

porteouz

Original Poster:

123 posts

235 months

Friday 3rd August 2007
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For anyone who read my last post, an update. I got a multimeter and checked the continuity between battery and fuse. fuse and relay and relay and fan. Turned out the wire between the fusebox and relay was melted through. I replaced the wire and put it all back together. Shorted across the relay and the fan started! I thought that would be it, turns out it wasnt the only thing. Turned the car on and let it heat upto 107oC. No fan! I took out the brown plug (ECT) and shorted across that. Still no fan.

Anyone any idea's? Id check the continuity from the ECT to the ECU but i have no idea which wire it is on the ECU, anyone know what number it is? Or anything else it could be?

ps for anyone who didnt read my last post its an s1

Scott

Edited by porteouz on Friday 3rd August 22:42

porteouz

Original Poster:

123 posts

235 months

Saturday 4th August 2007
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Anyone? Id imagine its a common problem, no?

tricky 100

954 posts

273 months

Saturday 4th August 2007
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Have you had any coolant leaks and had to top it up ? Sometimes you can get an airlock in the coolant causing the switch to not operate . If so you may need to flush through the system and ensure completly topped up .

jondude

2,441 posts

248 months

Saturday 4th August 2007
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If you need to use the car and don't want to spend too much time on this now as the sun is shining, then just wire the fan directly to the battery and turn it on yourself, if necessary, in traffic jams.

Otherwise it is indeed a case of checking every single wire and every single connection - you will get there in the end, just don't let it ruin your summer!

porteouz

Original Poster:

123 posts

235 months

Saturday 4th August 2007
quotequote all
tricky 100 said:
Have you had any coolant leaks and had to top it up ? Sometimes you can get an airlock in the coolant causing the switch to not operate . If so you may need to flush through the system and ensure completly topped up .
Wouldnt it have come on with me bridging the brown plug though? And no i havent had any coolant leaks

Jon I bought stuff yesterday to wire it straight to the battery and probably will do that but id still really like to get it working properly even if i do wire it to a switch

Edited by porteouz on Saturday 4th August 17:31