Help, cooling system not circulating

[unchboy]

Theres a fail-safe thermostat at Oreilly's you might want to try.

[evillecutter]

ive said it before and ill say it again: you dont choose a vx - a vx chooses you

[JHarris1385]

Was the above the best procedure to filling my radiator? I flushed and ran some gasket leak repair in it.

[tom4bren]

Was the above the best procedure to filling my radiator? I flushed and ran some gasket leak repair in it.

That would be the procedure for a 'problem' car. Normally a cooling system is self purging so you wouldn't have to go through all of that. You'd just add coolant as needed. If for some reason your particular engine is overheating, then Yah, the above procedure should be followed to eliminate the variable of trapped air in the system.

Keep in mind as well that the 'gasket leak repair' that you added could clog some of the tubes inside your radiator if you already had a corrosion build up. That's why I said that you should probably have your radiator flushed (to eliminate that variable). A garden hose flushing will probably not help in this situation.

[Y33TREKker]

Was the above the best procedure to filling my radiator? I flushed and ran some gasket leak repair in it.

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.

[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.

[Y33TREKker]

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.

Agree to disagree then, since the process listed was simply meant to minimize the chance of any air pockets forming during the coolant refilling process, not the steps required to check the coolant every time a person wants to check the coolant.

[tom4bren]

Agreed - we're both too bone headed to give in

[JHarris1385]

I am riding with a jug to work tomorrow to see where I am at after a 10 mile drive.

1/2 gallon or so in the radiator and filled to the max line in the res. tub.


I flushed with a prestone product and then put some head gasket repair in (did not work) and then rinsed her out with the hose and refilled with the amount above.

Looks like I need a professional flush, and a thermostat replacement.

Might as well do water pump, timing...etc while I am in there. Should be an adventure!

[EVO]

Not very likely but I have had the misfortune of installing two bad thermostats!! Drove me nuts!!