I have an 86 SE that had a bad temp guage (needle broke off). So I installed a new (used) one last night. The gas guage ssems to work fine, however the temp needles which should read from about 8 oclock to 4 oclock (cool to hot) seems to rest upwards of about 12:30 ish

Just wondering if I got a bad gauge or maybe that guage is wired backwards.

Any help would be appreciated.
Thanks,
Dennis

When the engine is cold and you first turn the key to run, does the gauge sit right at 100?

Here's some diagnostic info on my website:
http://fierodomain.com/content/view/259/210/

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When it first started it was resting at 100 then went immediately and stayed at 1 oclock ish. The needle does seem to shake a little,
Thanks

Have you checked it with the temperature sender disconnected? With the power on and the sender disconnected, if the gauge does not show 100 something is wrong with the gauge itself.

If it does show 100 at that point, you need to replace the sender or check the wiring.

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Over 120 Fiero Links, Articles, Images, Diagnostics

"If any car is both the parade and the rain, it is the Fiero"

[This message has been edited by Xanth (edited 09-23-2007).]

Thanks,
I'll try that tonight. Where is the temp sender and how does it disconnect?
again, thanks

Do you have the V6 or 4Cyl?

On a V6, its on the head that is closest to the trunk, on the left.

On a I4, it is sticking up by the thermostat housing. I can try and find a pic for you.

Here it is on the V6:

[This message has been edited by Xanth (edited 09-23-2007).]

V6
thanks
I'll pull it this afternoon and see what the gauge does

looks like I've got another bad gauge.
Anyone have a working one for sale?

You should post a WTB in the Mall. There is always someone parting out a car that might not see this.

The other methods include the Fiero Factory and Kick Hill, both Fiero junkyards and good people.

The most expensive is a new one from the Fiero Store.

http://cgi.ebay.com/ebaymot...QQrdZ1QQcmdZViewItem