Temperature gauge

The needle on the temperature gauge in my 2000 TD5 Discovery is
normally at 90 degress (horizontal) when the engine has warmed up.
I've noticed that on the recent cold days it's at about 30-45 degrees,
turning the heating off doesn't appear to increase the temperature,
but if the engine has to work hard the temperature may increase.

On a couple of occassions the needle has been at 90 degrees, but
turning the heating up has caused it to go to 30-45 degrees.

Is this something I should be concerned about (pending trouble), could
it be the thermostat or something else?

Regards

Terry

On or around Thu, 09 Nov 2006 18:10:06 +0000, nemo2 <[email protected]>
enlightened us thusly:

>The needle on the temperature gauge in my 2000 TD5 Discovery is
>normally at 90 degress (horizontal) when the engine has warmed up.
>I've noticed that on the recent cold days it's at about 30-45 degrees,
>turning the heating off doesn't appear to increase the temperature,
>but if the engine has to work hard the temperature may increase.
>
>On a couple of occassions the needle has been at 90 degrees, but
>turning the heating up has caused it to go to 30-45 degrees.
>
>Is this something I should be concerned about (pending trouble), could
>it be the thermostat or something else?

be worth swapping the stat, to see. Make sure you get the right one,
though. If you were using the heater, it's possible for the heater to
over-cool the engine, but turning the heater off should make it run at
normal or near-normal again.
--
Austin Shackles. www.ddol-las.net my opinions are just that
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Austin Shackles wrote:

|| On or around Thu, 09 Nov 2006 18:10:06 +0000, nemo2 <[email protected]>
|| enlightened us thusly:
||
||| The needle on the temperature gauge in my 2000 TD5 Discovery is
||| normally at 90 degress (horizontal) when the engine has warmed up.
||| I've noticed that on the recent cold days it's at about 30-45
||| degrees, turning the heating off doesn't appear to increase the
||| temperature, but if the engine has to work hard the temperature may
||| increase.
|||
||| On a couple of occassions the needle has been at 90 degrees, but
||| turning the heating up has caused it to go to 30-45 degrees.
|||
||| Is this something I should be concerned about (pending trouble),
||| could it be the thermostat or something else?
||
|| be worth swapping the stat, to see. Make sure you get the right one,
|| though. If you were using the heater, it's possible for the heater
|| to over-cool the engine, but turning the heater off should make it
|| run at normal or near-normal again.

Don't forget that Td5s run very cool in any case. Mine is struggling to get
any heat into the cabin the last couple of mornings.

--
Rich
==============================

2001 Disco II ES auto
1971 S2a 88" petrol
1991 Transit Camper

Take out the obvious to email me.

On Thu, 09 Nov 2006 18:18:36 +0000, Austin Shackles
<[email protected]> wrote:

>On or around Thu, 09 Nov 2006 18:10:06 +0000, nemo2 <[email protected]>
>enlightened us thusly:
>
>>The needle on the temperature gauge in my 2000 TD5 Discovery is
>>normally at 90 degress (horizontal) when the engine has warmed up.
>>I've noticed that on the recent cold days it's at about 30-45 degrees,
>>turning the heating off doesn't appear to increase the temperature,
>>but if the engine has to work hard the temperature may increase.
>>
>>On a couple of occassions the needle has been at 90 degrees, but
>>turning the heating up has caused it to go to 30-45 degrees.
>>
>>Is this something I should be concerned about (pending trouble), could
>>it be the thermostat or something else?
>
>be worth swapping the stat, to see. Make sure you get the right one,
>though. If you were using the heater, it's possible for the heater to
>over-cool the engine, but turning the heater off should make it run at
>normal or near-normal again.
Hi Austin,

I'll give that a try, I don't think that it's the heater causing the
temperature to drop as it has never done in the past 6 years.

Regards

Terry