dorward
Member
Registered: 26th May 08
Location: sunderland
User status: Offline
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i have changed my head gasket and the thermostat put new oil in new filter, fresh coolant, water pump and its still over heating
it only over heats when i am ideling and the fan dose not come on when it hits 100 degees dose any1 know whats wrong cheers
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alan-g-w
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Registered: 9th Nov 07
Location: Glasgow
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Does the fan work?
Test it by getting a length of heavy wire and sticking it in the two sides of the switch on the (drivers?) side of the rad with the ignition on. If the fan comes on, it's the switch that's buggered. If not, the fan's buggered.
[Edited on 17-01-2009 by alan-g-w]
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dorward
Member
Registered: 26th May 08
Location: sunderland
User status: Offline
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the fan works mate it comes on but only when it gos into the red. do you know wat it could be cheers
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craig8
Premium Member
Registered: 31st Dec 04
Location: Glasgow
User status: Offline
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its the sensor on the side of the radiator, very simple to replace
E36 328
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alan-g-w
Member
Registered: 9th Nov 07
Location: Glasgow
User status: Offline
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In that case I think you want one of these:
Cool running fan switch
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dorward
Member
Registered: 26th May 08
Location: sunderland
User status: Offline
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cheers for that lads, i have got to do my head again because i bought a skimmed head and i put the orginal 1 back on instead could this be why its overheating? cheers
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alan-g-w
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Registered: 9th Nov 07
Location: Glasgow
User status: Offline
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Sounds quite like it to me. The standard switch doesn't come on till something like 100-105*C
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dorward
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Registered: 26th May 08
Location: sunderland
User status: Offline
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i have just been out in the car and the temp gauge was on 100 degees its dosnt normaly do that so do you think it because of the wrong head i put on?
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barneykarl
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Registered: 29th Jul 06
Location: Stevenage
User status: Offline
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I,m a bit confused you bought a skimmed head but did not fit it or you had a skimmed one fitted but put back the original ? anyway as stated change the rad temp sensor also can the stat be put in around the wrong way I did that in the past lol, and replace the expansion bottle cap often overlooked , was it a new water pump you fitted, also you may have a air lock in the system.
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dorward
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Registered: 26th May 08
Location: sunderland
User status: Offline
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cheers for tht mate how would i know if i had a air lock? and how would i get rid of it?, i bought a skimmed head and i used the old 1 thinking it was the new 1 lol,so if i get a new switch it should b ok? cheers lads
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barneykarl
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Registered: 29th Jul 06
Location: Stevenage
User status: Offline
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Yes try a new switch first also http://www.corsasport.co.uk/board/viewthread.php?tid=475573
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alan-g-w
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Registered: 9th Nov 07
Location: Glasgow
User status: Offline
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quote:
Originally posted by dorward
cheers for tht mate how would i know if i had a air lock? and how would i get rid of it?, i bought a skimmed head and i used the old 1 thinking it was the new 1 lol,so if i get a new switch it should b ok? cheers lads
So you bought a new head for your engine and fitted the old one that you had taken off to replace instead? 
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dorward
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Registered: 26th May 08
Location: sunderland
User status: Offline
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yes lol
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alan-g-w
Member
Registered: 9th Nov 07
Location: Glasgow
User status: Offline
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Oh for fucks sake
I'd try what's been suggested anyway.
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dorward
Member
Registered: 26th May 08
Location: sunderland
User status: Offline
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swoped the head over today and it seems to be working ok cools down when it hits 100 degrees but ill still get 1 of them switchs cheers lads
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