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Power Strokes
6.4 Tech
No heat now that its cold outside
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[QUOTE="Tree Trimmer, post: 1435338, member: 716"] or you could just fill it the old fashioned way by filling it, run it to burp out some air and fill it again. your over thinking this to much and using to many modern things. technology is biting you in the a$$. make sure you have coolant. fill system, drive it, top system off. no more air in said system, and the small amount that would be left is not going to be enough affect your heat. drive it again, get to operating temp grab heater hose. if it's still cold its not because you have a air pocket, you have a blockage somewhere, or another reason for lack of flow to the heater core. pull hose off both sides of heater core with motor running. make sure you have good flow from water pump which would be volume to heater core, and good volume thru the core. then blow in the return line with your mouth and verify that you have good volume back into the block. sometimes old school just works better. messier true, but better. if your radiator wasn't leaking coolant, then what you found when you vacuumed/pressurized it wasn't affecting you. and you only have a 16lb cap, and plastic end tanks. so you might have created your own leak trying to find a leak that likely wasn't there. till you pressurized it that far past operating pressure anyways. anyways, carry on. [/QUOTE]
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