Help under DASH

[Avo]

So I have spent half a day going over my car,doing the little jobs that always seem to get put off...My temp gauge has been giving me the sh!ts so I attacked it aswell...I have pulled the instrument panel out and located the fault..it's the actual temp unit behind the dash..But for the life of me I cannot find out who has them,going away on the weekend and need ASAP.


Thanks

[Avo]

ImageUploadedByMotorculture1390133271.609772.jpg
This is the piece that needs replacingImageUploadedByMotorculture1390133342.738090.jpg

[93patrol]

Maybe try a wreckers if you can't get on from an electrician

[Yendor]

It's a bit hard to tell by the photo but it looks like the solder joint on the bottom left in the second photo is cracked.

Might pay to run a hot soldering iron over all them all.

[Avo]

yeah Yendor your right mate,looks like a di ode is burnt out aswell...got hold of patrolpart 45 bucks and 40 from the wreckers at my closest town for 40...going away this weekend so paying new price for second hand...but I will have a temp gauge in my car atleast...got a meet-up/p!ss-up to attend and I don't want to get caught in this hot weather without one...

[Avo]

Now I'm ready to smash something,new part no fix problem...must have short some where.turn lights on and needle goes straight to the bottom.otherwise it's goes up slowly as soon as I turn ignition on.without car running even...GRRRRRRRR

[Yendor]

That's sounds more like an earthing problem at the instrument cluster/temp gauge.

Is there any damage along the earth circuit in the circuit board from the temp gauge to connecter pin 14?

You could also try running a temporary earth to the temp gauge and see if this fixes your problem.

[Avo]

I'll might have another look tomorrow,did take it all apart and do the test as per the manual,couldn't perform one as the gauge read full instantly so I couldn't watch it rise slowly....I will if I get time after work have another look and get back to ya..thanks for giving me something to work on..

Cheers

[BigRAWesty]

Now I'm ready to smash something,new part no fix problem...must have short some where.turn lights on and needle goes straight to the bottom.otherwise it's goes up slowly as soon as I turn ignition on.without car running even...GRRRRRRRR

This sounds similar to what I'm butting out.
I've tested each negative wire for ground to the body and came up good.
So I'm going back over the electrical work I did on the rear lights next to see if I missed something.

Frustrating hay..