Thread: What is this piece and why did my antifreeze just bust oit

So I just got the transmission replaced in my prix. The guy who did it had to take the radiator out to put in a new tranny line. So today I put some antifreeze in the car. I put it straight into the reservoir. So I'm driving and my car said a/c shutoff to protect engine. So I pull over and unscrew the cap and the antifreeze bubbles everywhere. The car was cool because it's the morning. So then after that happens i see something next to the engine and stuff that looks like it needs to be plugged up. I'll attach a pic, oh and btw the needle was in the red on the temp gauge

What do I do now? Since it's still overheating

I think I. Need a radiator flush too

Yeah. I filled the reservoir when I left the house and left autozone. That's when my car said a/c turned off to protect engine. That's when I was pulled over and lifted the hood and not knowing, unscrewed my rad cap. Buster everywhere. After about 10 min I put it back on. Drove again and I saw the needle going back to red. So i pulled over and now I'm sitting here. Well I did some research and it says unscrew the cap and let the car run to release air. I guess that's what you were saying. But I did it too late

Like Scotty said fill the radiator and not the tank. That will get you closer. You also should crack the bleed screw on top it the thermostat housing. You have air in there somewhere.


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I understand what y'all are saying. But I'm saying , the reservoir still had a good amount of coolant in it. And the car is still overheating at this point. Are y'all saying add more coolant ? Like I don't know what to do from this point on.

What happens when you run the car with the radiator cap off? Does the level drop in the radiator. Don't worry about the overflow tank at this point.


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I haven't tried to drive the cap off or open a little. Should I try that out right quick?

Don't drive it. Just let it run and get up to temp.


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After I let it get up to temp then what?

I hear a bubbly noise while I'm letting it run

Level should drop somewhere in the process then fill the radiator directly. To keep full


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So when you say directly fill the radiator. Do you mean the reservoir or the cap? And should I do it while it's running ?

It looks like it's leveling out at about two lines over the middle. But I know it'll go up when I drive

While it's sitting here running the car is making a slight noise like its revving or something.

Fill in the cap


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