most of the time to bleed i just turn heater on and remove radiator cap and let the engine run till coolant starts flowing/burping air out that method always works good for me.

Make sure jiggle valve is at 12 o'clock on the thermostat that way air can get by.
What color is the coolant? I'd suck if you had a blown headgasket i remember you had the job done not to long ago.

89 2 dr turbo diesel
89/88 "Backwoods sas"