I was reading on http://www.installuniversity.com/ that it was crucial to remove all air in the cooling system when installing a news t-stat. How would I do that in these(5.3/4.8) engines.

<small>[ July 07, 2002, 04:32 PM: Message edited by: shark_g ]</small>

 

Air pockets are what kill coolant's ability to transfer heat. If you have air in the system and an "air pocket" should form somewhere in the head's water jacket, the area exposed to the air will not transfer heat from the metal surface and away with the coolant. Also the area which experience this event will boil the coolant as it passes the air pocket further creating a larger pocket. This drastically effects the cooling systems efficiency and will cause fluctuating coolant temps and erratic heating issues. In high performance applications this can lead to detonation.

From hat I remember I let my truck cool down separated the hoses and replaced the thermostat. I uncapped the radiator and replaced the coolant lost and proceeded to let the cooling system run with the cap open. It cycled a few time and it was full. I capped teh radiator and checked the level a few times and everything was good.

Richard

 

Richard, so basically, after I put everything back, I just have to let is sit with the engine on the radiator uncapped. Doing this, it will let it cycle for a few moments and continue to add as needed. What about disconnectin the rubber hose that excets the throttle body and continue to add coolant untill it exits though threre. How has everybody with a 160 t-stat done it?