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Author Topic: High running temp  (Read 2161 times)

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Rainmaker

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High running temp
« on: 07 October 2010, 19:24:31 »
OK all , I've just been out in the car to take my daughter home and i had the red warning light come on twice  for the temp, its cooled enough to look in the header and all's ok there normal level, what can cause this and what should i be looking for to rectify
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aaronjb

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Re: High running temp
« Reply #1 on: 07 October 2010, 19:27:33 »
Any other symptoms such as; no hot air out of the heater, oil in the water in the header tank, when the car was hot were any of the radiator pipes hot or cold?

Lots of things could cause it, but we can narrow it down some hopefully..
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Rainmaker

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Re: High running temp
« Reply #2 on: 07 October 2010, 19:31:43 »
Quote
Any other symptoms such as; no hot air out of the heater, oil in the water in the header tank, when the car was hot were any of the radiator pipes hot or cold?

Lots of things could cause it, but we can narrow it down some hopefully..

ok sorry only extreme hot air in cabin cant seem to get it to run cold, no oil in header all ok, all rad pipes hot under bonnet, fans on high speed so there kicking in..????
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aaronjb

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Re: High running temp
« Reply #3 on: 07 October 2010, 19:37:23 »
Hmm.. no cold in the cabin - it could be a failed HBV causing a pressure loss in the cooling system (assuming air mix doors are moving OK in the cabin system)..

Someone who knows more off the top of their head will respond shortly, I'm sure :)
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Abiton

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Re: High running temp
« Reply #4 on: 07 October 2010, 19:48:12 »
Possible water-pump failure?

Do you know when it was last changed?
« Last Edit: 07 October 2010, 19:48:50 by Abiton »
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Kevin Wood

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Re: High running temp
« Reply #5 on: 07 October 2010, 19:54:05 »
As said, water pump, blocked radiator core or perhaps thermostat (although they appear to fail open most of the time).

Is the whole radiator core piping hot by the time the fans come on? Both top and bottom hoses hot?

Kevin
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Rainmaker

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Re: High running temp
« Reply #6 on: 07 October 2010, 19:58:58 »
cambelt  kit and water pump done in feb this year, im new to omegas so a bit lost here..
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plym ian

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Re: High running temp
« Reply #7 on: 07 October 2010, 20:04:50 »
i had this on my 4 pot. kept on getting hot so flushed it out new anti freeze seams fine now (touch wood) :)
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Kneepad

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Re: High running temp
« Reply #8 on: 07 October 2010, 20:12:51 »


When was oil and oil filter last changed?
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Rainmaker

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Re: High running temp
« Reply #9 on: 07 October 2010, 20:23:53 »
Quote

When was oil and oil filter last changed?

it had a service in feb when the cambelt and water pump was done
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Kneepad

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Re: High running temp
« Reply #10 on: 07 October 2010, 20:33:54 »

When did the light come on/ go back off?

While driving, sitting idling?

Any smell of overheating?

Thinking possibly a false reading from a dodgy temp sensor.
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Rainmaker

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Re: High running temp
« Reply #11 on: 07 October 2010, 20:37:55 »
Quote
When did the light come on/ go back off?

While driving, sitting idling?

Any smell of overheating?

Thinking possibly a false reading from a dodgy temp sensor.

came on when pulling up in traffic slow moving then again via the same reason did smell hot when i got home...was only going through town so 20-30 mph max

gonna try and pull the codes tomorrow just in case..

the last vauxhall i had well had 2 were cally v6's so know most of the common issues with the v6 bit lost as said here on the omega...
« Last Edit: 07 October 2010, 20:42:23 by Rainmaker »
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Rainmaker

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Re: High running temp
« Reply #12 on: 07 October 2010, 21:15:19 »
ok just been out and done a paperclip test and im getting code 48....

done the test with engine running and without same code naturally without it running i got 31 aswell..
« Last Edit: 07 October 2010, 21:24:16 by Rainmaker »
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Kneepad

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Re: High running temp
« Reply #13 on: 07 October 2010, 21:29:44 »


 ;D ;D

Not a lot of help:  48 Battery voltage low.
                            31 just tells you the engines not running.

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Rainmaker

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Re: High running temp
« Reply #14 on: 07 October 2010, 21:33:08 »
Quote

 ;D ;D

Not a lot of help:  48 Battery voltage low.
                            31 just tells you the engines not running.



 ;D that i know myself as 31 is cranksensor but ill be testing the battery in the morn in daylight...
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