Bought this truck month ago, two weeks later Check Oil light comes on occasionally, doesn't seem to make any difference fast or slow running. This week seems to stay on all the time. Gauge on the dash (I'm told its a dummy gauge... what a stupid idea!) reads normal. Oil level is good. Thought to change the sending unit... but can't find it. Any ideas?

Robert in Mendo
1994, 2.3 L engine

__________________
Work Truck - 1994 Ranger, XTL, 4 cyl 2.3L (140 CID) SOHC, 5 speed Manual, standard bed