[s-cars] spordaic T-gauge w/ NU MFTS and t-stat. bring on the dynamite!

[Steve Powers]

You just replaced the radiator (and the coolant). An air bubble might
exhibit the kind of behavior you're seeing.

Steve Powers


On 2/11/08, Douglas Landaeta <dlandaeta at gmail.com> wrote:
> Forest,
> it is possible that the issue is the thermostat. they have a specific
> orientation and sometimes are 180 degrees off - could even be bad -
> again. no other guesses her...
> Doug
> 94 S4
>
> On 2/11/08, forrest bradshaw <sola4est at yahoo.com> wrote:
> > after having erratic temp gauge while driving, I instictivly replaced the
> > T-stat, this did not correct the problem, I just replaced the MFTS and
> still
> > the gauge reads up and down.
> >
> > channel 51 CC display reads 83-87C while driving.  Temp gauge will slowly
> to
> > moderatly rise to the 90C hash mark then will drop down to the 80C mark
> then
> > sits around 60C.  Gauge will rise and drop in traffic and will generally
> > read low at 55mph.  outside temps range from 4-30F degrees.
> >
> > The plug walls to the MFTS were cracked and broken when I pulled it off,
> but
> > the terminals looked fine still, and the plug fits fine and snug as it
> > should.
> >
> > 1 wire to the 2 pin switch was broken just below the spade (these wires
> are
> > very brittle) but that switch does not effect anything other than running
> > after run pump and fan when car is off correct?
> >
> > So I am at a loss here, radiator is brand new 2 years ago.
> > I have not driven the car in these cold of temps in a couple years but do
> > not ever remember the temp gauge being sporadic in cold weather, nor do I
> > think it should.
> >
> > what do I do next, last resort is drop it at the shop:(
> >
> > oh and I do have heat
> >
> > should the CC display reading fluctuate at all?  2-5 degrees?
> >
> > its roughly a twenty degree differance between the temp gauge and the CC
> > display
> >
> > thanks again
> >
> > Forrest
> >
> > I just want to drive my car the way I did when I bought it
> >
> >
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