Where is the oil pressure sending unit on 1999 Jeep Grand Cherokee?
The oil pressure sending unit on a 1999 Jeep Grand Cherokee is located on the driver's side of the engine block, near the oil filter. It's a relatively small sensor with one or two wires connected to it. Because there are variations in engine types (e.g., 4.0L inline-6 vs. 4.7L V8), the exact position might differ slightly. You'll need to consult a repair manual specific to your engine type for the most precise location. A picture diagram in a repair manual or online (searching for "[your engine size] 1999 Jeep Grand Cherokee oil pressure sending unit" will be very helpful.