2001 Ford Taurus Oil Warning Light

Well, it could be an electrical issue, but I would do something else first, I would replace the oil sending unit with a new one, should be relatively easy to do, and see what happens, if the issue is still there, I would buy a cheap mechanical oil pressure gauge and see what it reads in terms of pressure. Hot oil pressure @ 2500 rpm should probably be in the 40-60 lb range, I'm guessing but that's probably close. That is for the standard 12V motor, the 24V I think is around 20-45lbs hot @ 1500 rpm

Any chance you're idling lower then normal?

Yeah, it should be pretty easy, get yourself a repair manual, Chilton, whatever, it might show location of the sending unit I would think, It's only a single connector attached to it

These are instructions for a 99 Taurus, yours is probably similiar:

Oil Pan

Removal

1. Disconnect battery ground cable (14301).

2. Remove oil level dipstick (6750) as directed.

3. Raise vehicle on hoist. Refer to  Section 00-02Â.

4. Drain crankcase.

5. Remove starter motor (11002) and brace. Refer to  Section 03-06Â.

6. Disconnect engine control sensor wiring (12A581) from the heated oxygen sensors (HO2S) (9F472).

7. Remove dual converter Y pipe (5F250). Refer to  Section 09-00Â.

8. Remove engine rear plate (7007) from converter housing.

9. Remove oil pan retaining bolts. Remove oil pan (6675) making sure internal pan baffle does not snag oil pump screen cover and tube (6622).

Installation

1. Clean the gasket surfaces on the cylinder block (6010) and oil pan.

2. Note: Prior to applying sealer, clean sealing surface with Metal Surface Cleaner F4AZ-19A536-RA or equivalent meeting Ford specification WSE-M5B392-A, to remove all residues that may interfere with the sealer's ability to adhere.

Note: When using silicone sealer, assembly should occur within seven minutes after sealer application. After this time, the sealer may start to set-up, and its sealing effectiveness may be reduced.

Apply a 6 mm (1/4-inch) bead of Silicone Gasket and Sealant F7AZ-19554-EA or equivalent meeting Ford specification WSK-M2G343-A4 to the junction of the rear crankshaft main bearing cap and cylinder block and junction of the engine front cover (6019) and cylinder block.

3. Locate oil pan gasket (6710) to oil pan with sealing bends against oil pan surface and secure with Gasket and Trim Adhesive F3AZ-19B508-AA or equivalent meeting Ford specification ESE-M2G52-A.

4. Position oil pan.

5. Install oil pan retaining bolts. Tighten to 10-14 Nm (89-123 lb-in).

6. Back off all bolts and retighten.

7. Install engine rear plate to the converter housing.

8. Install dual converter Y pipe as described in  Section 09-00Â. Connect the engine control sensor wiringto the heated oxygen sensors.

9. Install starter motor and brace. Refer to  Section 03-06Â.

10. Lower vehicle.

11. Replace oil level dipstick.

12. Connect battery ground cable.

13. Fill crankcase to proper level with Motorcraft Super Premium 5W30 Motor Oil XO-5W30-QSP or equivalent meeting Ford specification WSS-M2C153-G.

14. Start engine and check for engine oil and exhaust leaks.

Do you have the auto heat system? Or manual? The fan motor is located beneath the glove box and is also relatively easy to replace, might be in your Chilton book. They do fail. The auto heat does have diagnostics built into it that you can access, it's amatter of knowing which combo of buttons to push.

The motor is not hard to remove if you have the instructions, the biggest pain is probably the little clip the holds the squirrel cage to the motor shaft, you could try spraying some electrical or brake cleaner into the motor, shaking it dry, and apply 12 volts, see if it runs, then you'll know for sure if it's the prob. Sometimes they run for a bit after cleaning, but invariably fail, either on the hottest or coldest day.

When it works, do all the speed s work? Usually the motor will fail internally, but like above post of mine, if you spray out the gunk in the motor it may work for a while, the brushes burn up

Sounds like the motor needs replacing, get one or try cleaning yours out by spraying, temp fix though on that