Hello All,
In the last week I have noticed a sound that I have never heard/noticed before. It sounds like pressure building and hissing out at a constant pressure under the box of the truck. I can make to sound start/stop with the key turned to run, but it only runs for about 20 seconds then turns off, but back on when the truck is started, and continues to hiss.
A buddy and I got under the back and could not see fluid dropping or locate the source of the hissing, almost sounds like it is in or around the fuel tank. We then thought it could be the fuel system since it requires so much pressure (diesel in general), we thought it could be that it is pressurizing the lines. However I can turn off the truck and it will reactivate with the key every time.
What made me notice this sound is that it can hear it over the sound of the engine when standing by the doors of the cab, it is that loud.
ps: I dont have air bags, so there is no air lines in the truck.
In the last week I have noticed a sound that I have never heard/noticed before. It sounds like pressure building and hissing out at a constant pressure under the box of the truck. I can make to sound start/stop with the key turned to run, but it only runs for about 20 seconds then turns off, but back on when the truck is started, and continues to hiss.
A buddy and I got under the back and could not see fluid dropping or locate the source of the hissing, almost sounds like it is in or around the fuel tank. We then thought it could be the fuel system since it requires so much pressure (diesel in general), we thought it could be that it is pressurizing the lines. However I can turn off the truck and it will reactivate with the key every time.
What made me notice this sound is that it can hear it over the sound of the engine when standing by the doors of the cab, it is that loud.
ps: I dont have air bags, so there is no air lines in the truck.