I have changed out my filter on my 99 at least a dozen times. I put some new diesel in the canister and use the key to bump the lp to refill the system. That being said is it possible to bleed the air out of the system WITHOUT using the lp as in bad lp. Can the canister be mostly filled and a line cracked at the filter to bleed the air and the engine be cranked with the starter to get the engine started. I realize one would have to go easy with the starter as it produces alot of heat. Will the truck start or not what are your thoughts?Inquiry minds need to know? Thanks