Re: Air in fuel system - no start
I just went through this. I unknowingly sucked up a huge amount of air after I reinstalled the tank and air was seeping in thru the sending unit supply hose.
Here's what you have to do if you cant get it to start after introducing air into the upper system (ran out of gas or cranked after opening the lower system for filter, pump, or disconnecting the tank.
Cycling the key and not bleeding the valves all day long WILL NOT GET THE AIR OUT OF THE UPPER SYSTEM. You have to bleed it out thru the valves on the motor.
It can be done by yourself, but keeps your the diesel out of your interior and saves time if you get a helper to turn the key on and off.
First turn the key on and immediately go to the schrader valve located on the drivers side on the fuel cooler. Depress the valve, I used an allen wrench, and caught the fuel with a skinny cylinder. Do this until pure full is coming out with absolutely no bubbles, closing it immediately after the key cycle ends.
Next do the same thing to the bolt closer than the schrader to the firewall, on the fuel cooler as well. Crack open this fitting as you cycle the key. I closed it every time the key cycle ended to make sure no air was going back in.
After you can not see or hear any air escaping with the fuel(this one will make a mess) try to start. I had to do this a few times, bleeding the schrader, then cracking the banjo bolt open, then trying to start. Every time I went back to the valves after trying to crank, there was new air. This became less, until I got all the air out and it started, then stalled. Repeat the bleeding process if it wont start after it dies. it will start and stay running once you have gotten the rest of the air out. Mine smoked like crazy and sounded horrible for several minutes. I took it around the block, let it sit for an hour. restarted, and it was almost back to normal. After another trip, its back to normal.