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[93hummer]

Got to looking into it on the internet and lo and behold there is an "air bleed valve" on the filter housing..... only mine is busted!!! I tried another method found on www.thedieselplace.com and it worked, basically I had to pressurize the return line with an air compressor so it in turn would pressurize the tank and force fuel up the line to the fuel pump, through the filter and into the injection pump. Took about 20 minutes of pressurizing and then cranking and repeating the procedure after which my batteries were about dead. Hooked up the jumper cables to the Hummer and let her charge for a bit then cranked it again and again until it started. It sputtered for about 4-5 minutes all the while I watched the clear hose on the return line, lots of little bubbles. Once the bubbles were gone whe smoothed out and ran better than it ever has. I hope it works, tomorrow morning will be the test, see if it starts on it's own without me having to hold the pedal halfway to the floor.