Need reefer help. wont start engine

Did you loose nut on fuel pump and have fuel flow out when pumping hand pump?

 

If you have an air line that you can hook to your tanks and cheap air gun you can pressurize the fuel tank through the vent.that will force fuel to the pump then you can pump the hand pump enough to get it running. Very easy to do and saves you from getting tennis elbow from priming it a million times

 

Are you doing correctly? There's a screw that when unscrewed, a valve is opened so as to purge air. Air in tank is the easiest. There are 3 ports on the top of the fuel tank. One will have a breather tube or plug (the other 2 are for supply & return lines). Put a quick connect air fitting there, and buy a 3/8" air hose and use air from truck to pressurize. One other tip: pump 200 times, then manually crank while still pumping as fast as you can. You might have to repeat 2-3times.

 

Did you fill with it with fuel before installing new filter?

 

What everyone else said. You're out of fuel and you drained it back to the tank. Pressurizing the tank is the easy way to do it. You bleed it, not to unlike bleeding brakes on a passenger vehicle. Don't try pumping it by hand. Your hand will fall off.

 

First of all what reefer do you have? Thermo King or Carrier. The plug is on high pressure fuel pump. Make it loose then unscrew priming pump and pump until fuel comes from under plug without air. Otherwise you can damage high pressure fuel pump running it dry. Pressurizing fuel tank will save you time and labor.
Inside the door should be sticker with instruction how to bleed air.

 

If you only pumped it a thousand times then you're about halfway there. Every reefer driver should have to dry start a unit so they remember fuel.