Engine overheating when idle

Engine, Exhaust, Drivetrain, ECU
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Nathanlgibso
Posts: 6
Joined: Thu Jul 12, 2018 9:00 pm

Engine overheating when idle

Post by Nathanlgibso » Thu Jul 12, 2018 9:04 pm

Hi. New to the forum. I have a problem with my Corsa E 1.4 Turbo. Recently the car started overheating when idle but when I started to drive off, within 10 seconds the car would go back to normal temperature as the cold air flowed through the radiator. I've connected the fan to the battery and the fan does work. I took out the Coolant Temperature sensor and put the paperclip in each end of the connector but the fan didn't come on. The relays and fuses are fine. Does the Corsa E 1.4 Turbo 14 plate have a fan switch on the radiator?


TheGeorge
Posts: 66
Joined: Tue Apr 25, 2017 6:26 am

Re: Engine overheating when idle

Post by TheGeorge » Fri Jul 13, 2018 11:56 am

Got the same engine, and in the summer (with warm engine), the radiator fan is running a lot, even when idle (I do like my AC on :) ).

If the engine temperature goes above 4 bars (or above 90 deg.C) on idle, I'd say there's something fishy going on with the fan switch (donno' if the switch is on the radiator itself, sorry).



Also (eye) check the coolant level in the expansion tank (is near the bonnet clip): should be orange-y fluid, with the level around the mid-seam of its vessel. Too low, or off-color fluid, then there is potential of something else going on as well.
Corsa E - 1.4T
MY 2016


Nathanlgibso
Posts: 6
Joined: Thu Jul 12, 2018 9:00 pm

Re: Engine overheating when idle

Post by Nathanlgibso » Fri Jul 13, 2018 12:23 pm

Thanks for the response mate. Checked the coolant and it seems fine. The relay isn't dead but maybe could be faulty? Is there any way of checking that the problem isn't with the coolant temperature sensor or the thermostat? How would I check the fan switch for being the problem? I don't know if it's related but when I have the air con on the car starts to idle rough. Not sure if it could ve connected. Any ideas?


Nickosnose
Posts: 44
Joined: Thu Nov 02, 2017 9:28 pm

Re: Engine overheating when idle

Post by Nickosnose » Fri Jul 13, 2018 12:57 pm

Could be the water pump...not sure about the 1.4 but on the 1.0t it has a clutch system so it can run at different speeds to aid warm up...


Nathanlgibso
Posts: 6
Joined: Thu Jul 12, 2018 9:00 pm

Re: Engine overheating when idle

Post by Nathanlgibso » Fri Jul 13, 2018 3:05 pm

Hmm. Might get it hooked up to an obd to check for codes. The car only has 18000 on the clock, didn't think it would be the pump. Would a dodgy pump cause the radiator fan to not work?


Rickardo
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Re: Engine overheating when idle

Post by Rickardo » Fri Jul 13, 2018 3:45 pm

Is the radiator fan active when idling i.e. clicking on/off


Nathanlgibso
Posts: 6
Joined: Thu Jul 12, 2018 9:00 pm

Re: Engine overheating when idle

Post by Nathanlgibso » Fri Jul 13, 2018 5:21 pm

Rickardo wrote:
Fri Jul 13, 2018 3:45 pm
Is the radiator fan active when idling i.e. clicking on/off
No mate


Nathanlgibso
Posts: 6
Joined: Thu Jul 12, 2018 9:00 pm

Re: Engine overheating when idle

Post by Nathanlgibso » Fri Jul 13, 2018 5:22 pm

UPDATE:

Got a P0118 code from the obd reader. I understand this refers to the Coolant Temperature Sensor. Maybe I should start by replacing the sensor?


liverpaul
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Re: Engine overheating when idle

Post by liverpaul » Thu Aug 02, 2018 8:46 am

i have the same an my car is due a coolant replacement so could be the same for you maybe? im a sri 1.4t


Nathanlgibso
Posts: 6
Joined: Thu Jul 12, 2018 9:00 pm

Re: Engine overheating when idle

Post by Nathanlgibso » Fri Sep 28, 2018 10:49 am

liverpaul wrote:
Thu Aug 02, 2018 8:46 am
i have the same an my car is due a coolant replacement so could be the same for you maybe? im a sri 1.4t
You still having the same problem mate? Mine hasn't done it for a while but then yesterday it started overheating at idle so I turned the engine off and then turned it back on and the fan kicked in at full speed. Wierd!


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