[s-cars] irregular temp gauge readings

[Joe Pizzimenti]

Dude,
I'm gonna be in Denver on Sunday and up at Steamboat Springs all of next
week.

Short notice again, I know!

Joe

On 1/30/06, Matthew Russell <skippertgore at msn.com> wrote:
>
> Have replaced thermostat twice now, boiled both thermostats and both
> appear good. (opening around 87 C).
>
> HVAC channel 51 reads correctly (86-89 at operating temperature) -
> meaning the MFTS is functioning, correct?
>
> Symptoms are that temp gauge will start to rise as car warms up from
> cold, then will plummet down to almost nothing, then may come back up
> in 5 minutes or so (time varies).
>
> Is the sending unit for the temp gauge located between the back of the
> engine and the firewall, in a plastic fitting with coolant hoses on
> either end of the fitting, held in by a clip?  Is this the likely
> culprit? Can someone point me in the right direction?
>
> TIA,
> -Matt, CO
> 92 s4
>
>
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