pandamoanium
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Registered: 15th Apr 02
Location: London : Corsa GSI 16v
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I saw a few days ago a post about there Corsa which overheats when in traffic etc ? Does anybody know which post it was or could help ?? Mine overheats when stationary intraffic for a long time, but as soon as i get going it cools down bigtime ??
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Gambit
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Registered: 5th Jun 00
Location: Common Sense HQ
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does it actually go into the red?
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pandamoanium
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Registered: 15th Apr 02
Location: London : Corsa GSI 16v
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Nope does not go into the red but got past half way easily.....
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Stuckey
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Registered: 5th Jun 02
Location: Plumstead, Greater London
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http://www.corsasport.co.uk/board/viewthread.php?tid=52389
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BARKEY
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Registered: 14th Jan 03
Location: Feltham, Drives:16v 1.6 Zetec Escort
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Fan switch not working, as you are moving cold air is getting in the engine and cooling it, but as you are stationary no air in!!! My mates car started doing the same thing over the weekend, cheap and easy to fit.
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StuartGee
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Registered: 10th Dec 02
Location: Ellon, Aberdeenshire
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But fan will normally only kick in once it gets really hot, ie in the red. Think you are worrying about nothing mate.
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pandamoanium
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Registered: 15th Apr 02
Location: London : Corsa GSI 16v
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Thanks for the post link Stuckey !
Barkey : I can hear the fan kick in when it starts to get hot, so don't think it is the fan or could it be the fan not working properly ??
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Gambit
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Registered: 5th Jun 00
Location: Common Sense HQ
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you are worrying over nothing, cars will heat alot quicker when at a standstill as there is no airflow thru the radiator, if & when it does to get too warm the fans come on inorder to increase airflow thru the radiator, this cuts off when it drops to a certain temp
when travelling there is constant airflow passing thru the radiator, that is why the temp stays lower
[Edited on 06-03-2003 by Gambit]
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StuartGee
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Registered: 10th Dec 02
Location: Ellon, Aberdeenshire
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Temp will always rise in stationary traffic, Stop worrying, its fine!!!
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pandamoanium
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Registered: 15th Apr 02
Location: London : Corsa GSI 16v
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What about if the engine starts idling akwardly, it goes up and down. Normally idles on 1000revs, then sometimes idles at 1500revs and then other times idles lower than 1000revs... It just goes up and down ?? Plus if i was in traffic for long enough would the car not overheat, it goes upto 100 easy ?
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StuartGee
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Registered: 10th Dec 02
Location: Ellon, Aberdeenshire
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Have you got an induction kit?? If so, these will often make engine rev erratically, they suck in hot air off engine, but in stationary traffic, will be more hot air.
If you can hear the fan kick in, the engine shouldn't overheat.
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Gambit
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Registered: 5th Jun 00
Location: Common Sense HQ
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it is not overheating unless it goes into the red
as for irratic idle this would happen to be starting from cold it idles arouind 1500rpm, then after a while it drops to 1000rpm
[Edited on 06-03-2003 by Gambit]
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pandamoanium
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Registered: 15th Apr 02
Location: London : Corsa GSI 16v
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Have got a K&N filter so maybe that could cause the idle then, but it still idle akwardly after i have driven it for a while. So is not just after starting it...
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matt_jonesuk
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Registered: 27th Feb 03
Location: worcester
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anything between 90 - 100 is normal opperating tempature i dont worry bout it
jus put the hot air on in ur car suck all the hot air outta ur engine helps cool down....
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pandamoanium
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Registered: 15th Apr 02
Location: London : Corsa GSI 16v
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Thanks for the advice !
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bobothebear
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Registered: 13th Jan 03
Location: bedfordshire
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Mine does the same mate. And has done since i got it.
Looked in Haynes manual and the Cooling fan don't kick in until about 98degrees anyway. I questioned it on my last service and they checked it out and sed that was normal operation.
If I get stuck in traffic I do as matt_jonesuk sed.
Turn Heaters onto Hot,4 and onto the Windscreen. And open the Windows cos ur gonna roast.
The temperature then soon plummets to lower levels.
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matt_jonesuk
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Registered: 27th Feb 03
Location: worcester
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my fan doesnt kick in until its really hot 98 + either ive also questioned it.... sometimes when i turn off the engine the fan decides to kick in weird
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pandamoanium
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Registered: 15th Apr 02
Location: London : Corsa GSI 16v
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Thanks, so the idling of the car could be anything then ?
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matt_jonesuk
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Registered: 27th Feb 03
Location: worcester
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i dont know about the idling i dont have a rev counter
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Gambit
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Registered: 5th Jun 00
Location: Common Sense HQ
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are you's on glue??
u do realise that the radiator fan & internal heater fan are two completly different fans and you have no control over the radiator fan.
also the radiator fan is needed to cool down the water circulating through the engine block, so sucking hot air of the exhaust manifold via the internal heater fan & having a green house effect in the cabin will do absolutely nothing!
[Edited on 06-03-2003 by Gambit]
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m4tt_c
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Registered: 24th Mar 02
Location: essex
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quote:
Originally posted by Gambit
are you's on glue??
u do realise that the radiator fan & internal heater fan are two completly different fans and you have no control over the radiator fan.
also the radiator fan is needed to cool down the water circulating through the engine block, so sucking hot air of the exhaust manifold via the internal heater fan & having a green house effect in the cabin will do absolutely nothing!
[Edited on 06-03-2003 by Gambit]
by turning the inside heaters up your getting rid of the hot air from the engine bay, it does cool it down.
if you've checked the water level is ok, and the fan cuts in it should be fine.
could also check the thermostat, and cap on the water (it has a seal, that lets pressure off if it gets to much)
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Gambit
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Registered: 5th Jun 00
Location: Common Sense HQ
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so how does sucking hot air from the engine bay cool the circulating water down??
with the radiator fan ur not cooling the actual engine, u are cooling the water used to cool the engine.
sucking hot-air might only work if your car uses a heater matrix which is used in conjunction with the radiator water, which is basically just like a little mini radiator, so it would help, but not v.much.
[Edited on 06-03-2003 by Gambit]
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Mikorsa16v
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Registered: 2nd Sep 02
Location: Burgess Hill, West Sussex
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as long as the fan actually kicks in b4 the needle gets into the red it doesnt matter!
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Cybermonkey
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Registered: 22nd Sep 02
Location: Sydney, Australia
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My wheels go round, is something wrong?!?!
Dave
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bobothebear
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Registered: 13th Jan 03
Location: bedfordshire
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Surely by Sucking the hot air from the engine bay your dissipating the heat that is present into a larger area hence the water temperature drops.
Its basic physics that it takes many more joules of energy to heat an amount of water than it is for it to be cooled down.
QED
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