I have a 1994 Monaco RV with a Cummings 300 diesel with what I believe has air in the fuel line. How do I remove the air, I pushed the primer button below the fuel pump until I could smell fuel, the engine turned over for about 15 sec. and still no start. Help!
Dan
I have a 1994 Monaco RV with a Cummings 300 diesel with what I believe has air in the fuel line. How do I remove the air, I pushed the primer button below the fuel pump until I could smell fuel, the engine turned over for about 15 sec. and still no start. Help! Dan
Try looking for air in the fuel line - that's the problem with mine. Unfortunately stopping air from getting in is the tricky bit. If you're lucky it's the fuel filter, if not you need to check / replace the sections of line.
There is no air in line Fuel pump pressursizes line and air automatically bleeds from the injector Not enough fuel or pressure will cause rough start
If air is present in the fuel line, it can cause a number of issues with the vehicle's performance. The most common symptoms of air in the fuel line include: Difficulty starting the engine Rough idling Stalling Misfiring Decreased fuel efficiencyAir can enter the fuel system through a number of ways, such as a damaged fuel line, a cracked fuel tank, or a faulty fuel pump. To diagnose the issue, a pressure test should be performed to identify the source of the air leak. Once the source of the leak is identified, it should be repaired and the fuel system should be bled to get rid of the air in the fuel line.
Air can be bland from the diesel fuel system on a Isuzu D-Max 3.0 engine by hooking an air compressor to the fuel line. Loosen the fuel line at the other end of the engine. The air will be removed.
Disconnect the fuel line at both ends, removed the fuel filter if it is an in-line filter, and blow the line out with an air hose from a compressor.
You should never had to "bleed" a fuel filter. Any air in the fuel line should come out as the fuel pump pushes fuel through the line and filter to the carburetor. There will always be some air or open space in the filter.
fuel pump not working , air lock in fuel line need to bleed line up by the engine until fuel comes out should start if have fuel injectors have to get air out of them to justy have to work the air out of the system.
unhook it from both ends and blow air through it Disconnect the line at the carburetor. REMOVE THE FUEL FILTER. Blow air through this portion of the line. If possible, remove the line at the fuel tank and plug the outlet in the tank. Now blow out the line between the filter and the tank.
Underneath the air filter, its mounted on the fuel line
There are three hoses on a Polaris 300 carburetor. The fuel line is the large one. One is a vent hose that goes nowhere, and the oil injector line connects to the small hose connector on the right side, nearest to the air intake. It goes straight out.
It is not necessary, fuel pump(s) will constantly circulate fuel.