Originally posted by 96mercury:
You need to remember on our cars there is the fan switch and temp sender. Both located on the thermostat housing. I replaced my fan switch and the car seams to keep a little cooler. If the sending unit for the gauge was at fault it wouldn't always read in the middle of normal while driving and creep up to the a or L when not moving, because the thermostat prevents water from circulating much until it is at the right temp. Meaning that there should be little movement on the gauge between driving down the road and holding still, just seems like the fan turns on late on these cars.



I need to replace that switch as well. I think the 190's is a little too high and a 180's would be better in these cars since the low speed waits so long to cut on.

I don't know what the problem is here for everyone else. Seems to me if the car is running fine and the guage is showing really low or high numbers then the sender is going bad. If the guage and sender are good then I'd have no clue what is wrong. These cars should go to M and L and this is normal unless the switch is changed to turn on the low speed fans sooner.