Cobalt This sporty compact was faced with the difficult job of replacing the popular Cavalier, but whether the base model, or the supercharged SS is chosen, is has made for a great replacement.
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2009 2.2L massive oil leak!

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Old Oct 22, 2022 | 8:17 PM
  #11  
tedz's Avatar
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Here’s a video showing the amount of leak.
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Old Oct 22, 2022 | 8:21 PM
  #12  
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Another video showing the area of the leak.
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Old Oct 25, 2022 | 12:54 AM
  #13  
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Originally Posted by tedz
Here’s a video showing the amount of leak.
that is the same exact leak I have. Weird there is so many like this. Wonder if could be JB Weld? Or need to replace whole cylinder head?
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Old Nov 7, 2022 | 12:43 PM
  #14  
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Default Hidden oil leak 2009 Cobalt

Originally Posted by ajparry89
Hey all,
Massive might be an over statement, but its a steady drip while the engine is running! coming from the exhaust side, back corner of the motor. its not the valve cover, as I just replaced that and it is dry. My guess is its the head gasket, but no matter which way I twist my neck and eyes, using a mirror or not, I can not get a good view of where it is actually coming from. But its a steady drip that comes down between the back of the motor and the transmission. Are these known for head gaskets leaking oil? is there something else on that back corner that oil could possibly be leaking from? I cant see any other possibilities, yet I cant get an actual visual, so I dont want to assume. Anybody else have experience with oil leaks there? thanks!
The oil pressure sensor is a common leak. It’s above the starter just below and left of the oil filter. Hope this helps.
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