Help, cooling system not circulating

[tom4bren]

It's based on the filling procedure taken from the Isuzu manual, and not necessarily just for vehicles with possible overheating problems. The main idea behind it is that overfilling any cooling system too quickly can cause air pockets, which can cause overheating if they're not eliminated.

We'll have to agree to disagree. On most cars, as long as there is coolant in the reservoir, normal driving will allow any air in the system to go into the reservoir and be replaced with coolant the next time it cools down. If that ain't happenin, then there is a design flaw or there is something FUBAR in the system. AFAIK other than the PITA thermostat replacement, we don't have any design flaws in our cooling system that would cause trapped air pockets.

I'm not disagreeing that it's what's recommended by Isuzu ... or even that it's not a valid process. It's just way over the top for regular maintenance.