Is there a best way to determine what's wrong with a temp gauge? I have changed the dash over and the gauge has not worked in either of them .

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It's not the size of the dog in the fight, but the size of the fight in the dog!!

1976 Mini SS
1971 Mini Ute (Custom) - really hubby's but I will claim half
1976 Mini SS Shell
Oh and an 850 shell waiting for our dear son to start his resto!

Start by shorting out the sender unit wire onto the engine block. The gauge should read maximum.

If nothing changes then check the gauge has power. The circuit board on the clubman instrument cluster isn't the best of things and the traces break sometimes, so check it for continuity.

If the gauge reads maximum when the sender unit wire is shorted out, but doesn't work when the sender unit is connected, then it may be the sender unit at fault, which is not uncommon.

Thanks, I'll give that a go

_________________
It's not the size of the dog in the fight, but the size of the fight in the dog!!

1976 Mini SS
1971 Mini Ute (Custom) - really hubby's but I will claim half
1976 Mini SS Shell
Oh and an 850 shell waiting for our dear son to start his resto!

And if your Printed Circuit is no Good come to me for a new one.

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DID I MENTION THAT I AM THE BEST SUPPLIER FOR MINI ELECTRICAL PARTS AND REPAIRS?
"Let us remove your "SHORTS"