Temperature Gauge Broken

[Guest ebrett]

Have a 205 D-Turbo and the temperature gauge has decided to pack up. The fuel guage is also intermittent.

During pre-heat the guage emits the warning light, but no movement on the needle at all.

Tried shorting the wire to the block and still nothing.

 

Decided to take the clocks out today and have a look and found this...

 

No idea what size this resistor is or even if this is the problem. Would a guage use a resistor does anyone know?

Thanks

[lemmingzappa 75 1 Cars]

I've seen people use resistors in that area when doing GTi-6 conversions (I think). Something to do with the tachometer.

[Guest ebrett]

Could be do with the tachometer. Unfortunately the crank sensor is duff, so that doesn't work either.

 

Tonight I applied power directly to the contacts on the back of the gauge and it worked fine. Needle went to maxium like you would expect.

Checked continuity from the wire in the engine bay(sender) to the multipin plugs and theres continuity to one wire, so that should rule out any shorting.

Although the colour changed from Red in the engine bay to Light Blue at the clocks.

 

Now i'm stuck, no idea what to try next other than replace the resistor. Trouble is I can't read all the rings

All I can read is GREY, BROWN, SOMETHING, GOLD. It's quite big too.

Edited March 1, 2010 by ebrett