can someone help me with a cooling system question?

[pontiacgp]

If you have alot of heat and the hose is collapsing it sounds like your thermostat could be the problem...also your not supposed to go more than a 50/50 split.. antifreeze does not cool an engine efficiently

 

[cutlassguy]

obviously i filled it up to the full hot line not right to the top lol what could the thermostat be doing if it opened as soon as the engine warmed up and the fluid level in the rad went down? as far as the gauge temp goes, its always around or a little lower than 100 and never over-heats. the only thing is the collapsed rad hose, so im assuming its working properly.

 

[azmalibuwagon]

like Bowie mentioned - are you sure it isn't just that the hose is old and soft?

 

[pontiacgp]

obviously i filled it up to the full hot line not right to the top lol what could the thermostat be doing if it opened as soon as the engine warmed up and the fluid level in the rad went down? as far as the gauge temp goes, its always around or a little lower than 100 and never over-heats. the only thing is the collapsed rad hose, so im assuming its working properly.

I was thinking if fluid is pulled fast enough to collapse the hose then the fluid must be flowing too slow to fill the void and since the thermostat is what controls the flow of that line I thought may be it could be a problem...but I won't bother you with anymore of my ridiculous suggestions..

 

[burgundy83]

I'd think either a shitty hose, or the wrong hose.

 

[455rocket]

Sounds like an air pocket. Warm the car up till the stat opens and have someone rev the motor up and hold it steady. If it pulls the level down top it off and put the cap back on while the motor is reved up. As suggested a new rad cap for sure.

 

[cutlassguy]

i ran it until the thermostat opened up when i filled it up. it ran for about 10 mins with a full rad then as soon as it got closer to 100, when im assuming the thermostat opened, the level dropped about an inch or so in the rad so i filled it back up and let it run for another 5 minutes to let any air escape. still the same thing. i dont think its a soft hose or what-ever cuz there isnt any pressure in the system to even expand it. also the thermostat seems to be working seeing as its never over-heated even after a few hours on the highway. good heat and never seen it above 100 degrees. something seems to be causing a vaccum in the system but everything works good and it only goes through about an inch in the rad over a 3-4 month period. itsa wierd one...

 

[bill]

I recommend one of these.......http://www.autozone.com/autozone/parts/ ... 7256_4559_

 

[cutlassguy]

a little update, i was under the hood earlier today while it was running for another issue and i noticed the hose (this time) had lots of pressure and wasnt collasped at all. ????

 

[anakputa]

Looking at the responses from the others..does it have the correct radiator cap? Has is been tested or is it a cheap one from china? How about the radiator itself? Stock or aftermarket? Which hose is collapsing the upper or lower radiator hose? The old days there was a spring they put in the lower rad hose to keep it from collapsing..