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Dash temperature gauge not working


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#1 TUFGQ

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Posted 15 May 2018 - 07:15 PM

Hi guys

 

I've just scrolled through a dozen or so pages and still having no luck.

 

My 1987 XF Fairmont used to be a 4.1 carbie, now has a 400 and C6 but everything else is factory...ish.

 

Fuel gauge, volts, oil pressure all work fine (light bar gauges).

The water temperature gauge doesn't wotk, I've put in a new Tridon TTS032 sender and still no go.

I've had the ignition lights on and earthe the sender wire directly and the gauge doesn't do anything.

 

Is there anything I should do to find the fault?.

 

Cheers in advance.



#2 Outback Jack

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Posted 18 May 2018 - 10:00 AM

The only way to test is resistance.
I think maybe you have a broken wire.
Test from one end to other to see, if it shows 0.00 means open circuit. .. wire broken.
Temp guage usually pretty reliable.

Are you buying a temp sender for a 4.1 to suit guage or trying with a 400 sender?
Usually the guages don't pack up much.

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#3 TUFGQ

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Posted 18 May 2018 - 03:56 PM

I've bought a temp sender for a 4.1 to suit the gauge and have fitted it.

So test resistance from sender end of wire right back to the gauge end?.

Will that wire be obvious by colour?. I'm hopeless with a wiring diagram. 



#4 VDO

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Posted 19 May 2018 - 08:19 AM

Temp sender wire is red with a white trace.


Hey Boss... I've cut it three times and it's still too short..!


#5 TUFGQ

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Posted 19 May 2018 - 08:37 AM

Temp sender wire is red with a white trace.

Thanks mate, have checked and that's exactly the wire connected to the sender. Have just fitted a new thermostat and will do a resistance or continuity check on the wire this weekend hopefully.



#6 TUFGQ

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Posted 22 May 2018 - 04:32 PM

Not sure how clear this will come out, I gave Photobucket the biff for obvious reasons last year but I see they have or are changing their 'view'.

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#7 TUFGQ

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Posted 22 May 2018 - 04:34 PM

The XF as it sits at the moment.

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#8 VDO

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Posted 22 May 2018 - 05:03 PM

Not sure how clear this will come out, I gave Photobucket the biff for obvious reasons last year but I see they have or are changing their 'view'.

Looking at the engine bay pic, is there two temp senders..? 

 

I see something on top of the thermostat housing with 2 connections, and also looks like one on the side of the thermostat housing with one spade connector, but nothing seems to be connected to either of them..?

 

Which one are you using..?


Hey Boss... I've cut it three times and it's still too short..!


#9 TUFGQ

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Posted 22 May 2018 - 05:32 PM

Looking at the engine bay pic, is there two temp senders..? 

 

I see something on top of the thermostat housing with 2 connections, and also looks like one on the side of the thermostat housing with one spade connector, but nothing seems to be connected to either of them..?

 

Which one are you using..?

 

There is a third lower on the block below the thermo housing, this one has the genuine XF 4.1 sender and red wire with white trace attached.



#10 TUFGQ

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Posted 22 May 2018 - 05:33 PM

The other two are probably unused from the donor car but may be handy later on.






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