My cadillac escalade esv 2003 ran out of gas when I put gas back in It now it won't start or even turnover

Its your Transmission

You need to have an OBII scan for faults. Any good shop or parts store can scan it for you give you list of faults/fixes. Once repaired then they can/will reset lights

There is no drain for the gas tank. It either has to be syphoned out or pumped out by use of the fuel pump.

Common problem with the 2000-2005 GM escalade and Denalli. You need to have the air intake or airflow sensor checked or replaced. worst scenario your air pump is leaking

There is only one fuel filter on a 2003 Cadillac, If I remember correctly the fuel filter on my 03' was on the frame rail drivers side rear and it was pretty simple to replace. You do need a fuel filter fuel line quick release tool, common to by at any parts store with the fuel filter that should be replaced every 15,000 to 25,000 miles or once a year.

a new switch will be the fix

Did you ever find an answer to this? This is happening to me right now

My wife ran out of gas once and I had to bleed the fuel lines of air that had been sucked in before gas would travel through the lines. Kinda like you would have to bleed air out of hydraulic brake lines.

The fuel pump has most likely frozen up from overheating it, the pump (located in the fuel tank) is cooled by the gas it is submersed in, anytime the tank is run lower than 1/4 the pump gets hot from coming out of the gas in the tank, this shortens the life allot. You are going to have to replace the pump.

Did it come on right after adding gas? If so, remove and retighten the gas cap. Make sure it click 1-2 times.