sailorbob

Dash temp doesn't correspond to ECU reported temp

2 posts in this topic

I was out on a road trip recently and my temperature gauge on the dash started going on wonky, then seemed to stop working.  I pulled out ForScan and the ECT seems to be reporting the temperature correctly, but the temp gauge is pegged low most of the time and sometimes seems to bounce around randomly, even while the ECU is showing a steady reading via ForScan.

Any ideas what might be going on?

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OK, so I found the answer to my own question here on the site here: 

Basically the dash temp gauge is operated by a separate single wire temp sender unit as described in the above post, and it's apparently gone bad.

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