re 90q Temp Gauge

["Smith, Kirby A" <kirby.a.smith@lmco.com>]

Joel Landsverk <jolandru@yahoo.com> wrote:
-------------------------
The water temp gauge in my '91 90q 20v works occassionally.
I was wondering if anyone has experience with this.  The heater works
in 'econ' and 'auto' modes.  All other gauges work.  I guess this is
either the gauge, sending unit or thermostat.  Any suggestions?
-------------------------
Most likely problem is a bad multifunction thermoswitch.  They leak and
corrode the connector pins.  On my cars this is located at the top of the
engine where the radiator hose connects.  Underneath.  Alternatively, you
could have a cracked trace on the instrument panel circuit board.
Thermostat failures tend to be consistent in their effects.

                .... Kirby   (Kirby A. Smith)
                              2 x 1988 90q
                          New Hampshire USA