no. on my customer's 92 2.3L there are two sensors behind the thermostat housing, the front one appears to bring on the aux at low speed, and the rear one brings it on full speed...
I do not think this is correct.
I think the front one is supposed to bring in the main EM fan, and the rear one brings the aux on full speed.
the a/c switch should be the switch that brings on the aux fan on low speed...
yet it does nothing on this 92... I've jumped it, and nothing. the a/c will overheat and dump out the vent on the dryer before the fans ever come on... NOTHING on the a/c system is bringing on the aux or the EM fan...

any help would be appreciated.
THANKS!

__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 560SL convertible
1987 190D 2.5-5SPEED!!!

1987 300TD
2005 Dodge Sprinter 2500 158"WB
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!