Temp needle won't move

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Bryce
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Temp needle won't move

Post by Bryce »

Hi the temp needle on my 1.6 jx just sits stuck at the bottom left of gauge where you can't even see it. From what I've read overheating could do some serious damage so I'm keen to try and fix it.

I've read a few posts that came up in the search but none of them seemed to deal with the jx and so I'm not sure if sensors would be on the same place etc

Can anyone give me a good idea where to start looking/what the most likely cause will be?

Cheers
1987 1.6td hightop

clone123
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Re: Temp needle won't move

Post by clone123 »

I think its the one on the back of the head

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davidoft1
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Re: Temp needle won't move

Post by davidoft1 »

Put the sender wire to Earth and see if the gauge goes up

clone123
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Re: Temp needle won't move

Post by clone123 »

With the Ignition on

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jrt
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Re: Temp needle won't move

Post by jrt »

Did my daughters at a show last weekend as the needle wasn’t moving. The spade connection had come off. Left hand side towards the rear if I remember correctly.
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davidoft1
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Re: Temp needle won't move

Post by davidoft1 »

clone123 wrote: 18 Jul 2021, 14:45 With the Ignition on

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Yes ignition on

clone123
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Re: Temp needle won't move

Post by clone123 »

davidoft1 wrote:
clone123 wrote: 18 Jul 2021, 14:45 With the Ignition on

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Yes ignition on
Sorry davidoft1 it wasn't a question I was just letting Bryce no he need it on not that he didn't no anyway just making sure he did Image

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Bryce
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Re: Temp needle won't move

Post by Bryce »

Thanks everyone will try it first thing tomorrow. So to be clear I'm looking at the wire connected to number 7 on this pic which should be yellow/blue?
Image

And when I find it just disconnect a spade connection and put it to earth and see if needle moves?
1987 1.6td hightop

clone123
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Re: Temp needle won't move

Post by clone123 »

Just looked at mine and I think the Original one is yellow/red and a brown wire to brown will be earth

https://wiki.club8090.co.uk/index.php/D ... ine_wiring
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Rascal
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Re: Temp needle won't move

Post by Rascal »

Had mine stop working last week. Over the years heat in the engine bay makes the wires brittle and break within the black insulation they run in, it is yellow with a red trace.. So i recomend cutting the large black insulation that they run in and checking for breakes.
Image
Had to do the same for my oil pressure. And its clearly been done previously on mine

Bryce
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Re: Temp needle won't move

Post by Bryce »

So I found the wire and the spade connector was pretty much snapped.
Image
I've replaced that and turned on van but still nothing
Image
Any ideas on to what to look for next?
I checked the wire pretty far back and could see no breaks
1987 1.6td hightop

davidoft1
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Re: Temp needle won't move

Post by davidoft1 »

Bryce wrote: 19 Jul 2021, 10:46 So I found the wire and the spade connector was pretty much snapped.
Image
I've replaced that and turned on van but still nothing
Image
Any ideas on to what to look for next?
I checked the wire pretty far back and could see no breaks

There’s more than one wire , check for another broken as above the yellow

clone123
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Re: Temp needle won't move

Post by clone123 »

davidoft1 wrote:Put the sender wire to Earth and see if the gauge goes up
Try this

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Bryce
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Re: Temp needle won't move

Post by Bryce »

OK so replaced green black connector under the rubber above as well as looking a bit tired still nothing.

Earthed the sender wire while taking a video on phone and it shows the led flashing and the pointer shoots up then goes back down after being removed from earth Is it a fault with sensor?
1987 1.6td hightop

clone123
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Re: Temp needle won't move

Post by clone123 »

Yes

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