Yellow stepside
Newbie
I was "told" that the '94 had a 4 speed blower setting. But I have found on my search of '94's at junk yards are the 3 speed. I check it by shining a flashlight on the face of the control.
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Thanks!!That won't tell you anything. The four speed units show speeds 2 and 3 as low/med, and med/hi respectively. All 94s and some 93s are 4 speed. The best way to tell is to look behind the glove box and see if there are 3 or 4 relays on the heater box. 3=3 speed system, 4=4... ALL 88-94 use the same screens.