Alright guys I looked up Low Oil light and found 1 thread that was somewhat similar to my situation.


Up here in New England it starting to get a lil colder. I noticed the other day when I started my truck the Oil light came on and dropped to "L". So I checked the oil and it was fine. I was due for an oil change so I did an oil change with Ford Oil and filter 5W-20. Next day started it up and it was around 36 degrees out and it did the same thing. So I shut it off and turned it back on still no movement of the needle. I reved it a lil and it jumped up and than back to "L". I let it idle and it finally went to normal.


Couple days go by but its a lil warmer in the 40's and there is no problem with the light at all. Truck drives normal nothing new with driving or gas. Today its about 38 out and the light acts up again. Now this only happen at first start up after sitting over night and when its a lil colder out.

Any ideas would be great. Thanks in advance.

 

I'd replace the oil pressure sender.