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Model specific boards => Golf mk2 => Topic started by: Grazy on 03 August 2009, 09:57

Title: When should my fan be cutting in ?
Post by: Grazy on 03 August 2009, 09:57
Dont think i have heard fan running in the 3 months that the Golf  has been on the road , Temp gauge never goes above half way but in traffic or round town temp light comes on and flashes constantly . A bit of a hot rubbery smell come into car and to be honest worries me a bit , Any ideas people  :sad: Thanks
Title: Re: When should my fan be cutting in ?
Post by: rubjonny on 03 August 2009, 14:49
should come on at around 3/4 on gauge, see the coolant faq on tips on testing all the different parts of the cooling system
http://www.golfgtiforum.co.uk/index.php?topic=106380.0
Title: Re: When should my fan be cutting in ?
Post by: Jay on 03 August 2009, 20:06
Check your PAS and alt. belts. I had that smell and my alternator belt kept flipping out of the V and upside down  :angry:  I didn't bother fixing it because it failed the MOT not long after  :lipsrsealed:
Title: Re: When should my fan be cutting in ?
Post by: hughesy83 on 03 August 2009, 20:37
should come on at around 3/4 on gauge, see the coolant faq on tips on testing all the different parts of the cooling system
http://www.golfgtiforum.co.uk/index.php?topic=106380.0

Sorry to jump in here btw, but my fan also comes on quite often, especially if i've been darting around town - although temp gauge never gets to half way... is my gauge bust or is that normal? I have a 16V and I understand they run hot.  :undecided:
Title: Re: When should my fan be cutting in ?
Post by: Jay on 03 August 2009, 21:12
It can't do any harm can it?  :huh:
My 1.6's fan used to come on quiet a lot last year summer time, I knew this because the fan was buggered and made a racket and sounded like the engine was failing :grin:  :shocked:
Title: Re: When should my fan be cutting in ?
Post by: JC on 03 August 2009, 21:25
It can't do any harm can it?  :huh:

educated guess ?
Title: Re: When should my fan be cutting in ?
Post by: poncho on 04 August 2009, 00:20
Hi,

My fan comes in at just before half way on a 1600 if thats any help

Andy
Title: Re: When should my fan be cutting in ?
Post by: rubjonny on 04 August 2009, 11:57
the gauge could be under-reading, what does the oil temp say? could be the fan switch is cutting in a bit early too. or you may have the after-run system fitted and the wire has fallen off and is earthing to the engine. its a single pin sensor with a black wire, on the inlet somewhere
Title: Re: When should my fan be cutting in ?
Post by: Grazy on 04 August 2009, 22:16
the gauge could be under-reading, what does the oil temp say? could be the fan switch is cutting in a bit early too. or you may have the after-run system fitted and the wire has fallen off and is earthing to the engine. its a single pin sensor with a black wire, on the inlet somewhere

 Ill check oil temp on next run rubjonny , Its a november 91 8v digi if that makes any difference , ,Sorry no good with motors so may struggle to find inlet mate  :rolleyes:
Title: Re: When should my fan be cutting in ?
Post by: Nate187 on 05 August 2009, 01:21
Mine comes in at 82 degrees on the oil temp, or is it 92  :undecided:
Title: Re: When should my fan be cutting in ?
Post by: rubjonny on 05 August 2009, 08:51
82 oil temp is just warmed up, 92 would be more like it but still a bit cool
edit: though there can be a difference between oil & water temps, but 92 is still a fair bit cooler than i would expect for the fan to kick in
Title: Re: When should my fan be cutting in ?
Post by: Grazy on 05 August 2009, 18:22
Ok , took it out today after about half hour of driving and with temp gauge on half way and the oil temp at 98 , still got hot smell coming in car Temp light flashing, stopped at petrol station filled up turned car on again no light flashing , then later it came on again ?? :undecided:
Title: Re: When should my fan be cutting in ?
Post by: rubjonny on 06 August 2009, 11:37
disconnect the plug from the header tank level sensor and bridge the pins, see if that stops it.  if so check the level, if its ok you probably need a new tank. if it doesnt then either the temp sensor is playing up or the dash clocks
Title: Re: When should my fan be cutting in ?
Post by: Grazy on 06 August 2009, 15:28
disconnect the plug from the header tank level sensor and bridge the pins, see if that stops it.  if so check the level, if its ok you probably need a new tank. if it doesnt then either the temp sensor is playing up or the dash clocks

OK , Thanks so header tank is where i put water in for cooling system yeah ?
 
How do i bridge pins - Excuse my ignorance  :embarassed: :embarassed:

If we are talkin same tank it looks pretty new  :rolleyes:

If i need new temp sensor where is that ??

if it was the clocks ( Have been replaced my low mileage ones by PO ) why would this make engine so hot and smell so hot ??  :huh:

Sorry for all questions Johnny but i know nothing about engines but feel this is a problem that needs addressing quickly , Thanks ALOT for your help  :wink:
Title: Re: When should my fan be cutting in ?
Post by: rubjonny on 07 August 2009, 08:35
yeah it is, to bridge the pins pop the plug off and put a bit of wire between the pins, on the plug obv not the header tank ;)
the temp sensor is the black 2 pin one in the flange on the front of the head, the clocks wouldnt make the engine run too hot, however engines do smell a bit when warm especially if say they are coated with oil due to leaky gaskets, or if oil is leaking onto the exhaust manifold :)