Hi,just wonder if someone knows what the plug down in right corner is ?

(has a red round cirkle around it,Oldsmobile Dynamic 88 -65 )




/Glenn

 

Temperature warning light sending unit, which threads into the intake manifold in the coolant crossover passage near the thermostat housing.


Olds used both COLD and HOT warning lamps thru 1969. One wire is for COLD light, the other for HOT. The dual sending units have been obsolete for many years but you can still find NOS ones every so often.


COLD light came on when engine started and went off when coolant temp reached 120 degrees F or so. HOT light came on for bulb test when ignition was turned to START, then went out unless coolant temp hit 250-260 degrees F.

 

Hi thanks,the car has amp,oilpressure and temp gauges under the dash.I suppose that the temp gauge sender is mounted where the original sender should be mounted.
And the oilpressure,i assume the readings are in psi.

/Glenn.

 

That's right- psi. Those Stewart-Warner gauges were top of the line in their day and looks like they're still functioning well.

 

Thanks,yes they works fine and looks good to

/Glenn