I replaced the oil cooler on my 2002 Dodge 3500 Cumming motor and water is still leaking into the oil.Should this oil cooler have O rings on it?
My car has a manual transmission.
Hi - yes, absolutely change the o-rings. They get brittle with heat and age, lose their resilience, and you have oil leaks. If you would like assistance with this task, I would recommend having the oil cooler replaced by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, and replace your oil cooler.
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