So I just replaced the exhaust solenoid on my balt to get rid of the T/C light. Drove it around and everything seemed fine. I pull up into the driveway and turn the car off.

As im walking off I notice a hissing noise coming from the front end of the car. Like an air leak. I pop the hood and cant seem to pinpoint where its coming from! Its a hissing or small air hose noise. I did notice that when I push down on the radiator it increases/decreases the loudness of the hissing noise.

I have no Idea what to check now! Anyone have ANY ideas?! THANKS!

2006 Cobalt SS 2.4L, 86K Miles, STOCK
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boost leak, but if the car is stopped maybe not. tire may have a nail or something, pushing down anywhere would cause the change if its tire. check it in the morning. I guess rad could have one, check for for fluid in the morning

 

Thanks for the quick reply. I know the info I gave was very vague.

I found out what it was. The radiator fan housing is resting on the AC line(crappy design). It split the line open. So the sound was over $100 of Freon seeping out into the air. Yet another thing that needs fixing on this money pit of a car!

Thanks again!

 

Oh boy... I wonder if that's why charging the AC on my car didn't fix it. Wait til it gets warm again to check, though.