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Discussion Starter #1
My 2004 TJ Rubicon's radiator has been bubbling a bit. After playing in the snow yesterday, I left my lights on. 🤦‍♂️
I jump started it today and went in my house while it warmed up. After 20 minutes, I saw smoke (steam) coming from under the hood. I shut her off and the temp was in the red (260). The top left radiator corner has a crack near the hose connection and it was puffing out smoke (steam).

Last year, I drained the radiator and added fresh coolant. Before I changed the coolant, it was brown.

Opinions? I'm hoping it's just the radiator. Thanks in advance!
 

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These style of radiators don't do well with cold (assuming its an OEM-style). Tanks crack easily. Recommend buying a Mopar brand replacement. You'll spend a little more than the cheapies, but the Mopar perform better.
 

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Put in a new thermostat and radiator cap while you're at it. Also check condition of the hoses.
 

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Discussion Starter #4
These style of radiators don't do well with cold (assuming its an OEM-style). Tanks crack easily. Recommend buying a Mopar brand replacement. You'll spend a little more than the cheapies, but the Mopar perform better.
Thank you!
 

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Discussion Starter #5
Put in a new thermostat and radiator cap while you're at it. Also check condition of the hoses.
Thank you!
 
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