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Questions tagged [oil-cooler]

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Blown head gasket? Oil cooler? Something worse?

Recently I came to noitice that my car lost almost everything of the coolant from it's expansion tank (not all the coolant from the system, just the tank) in a short period of time. The expansion-...
2
votes
1answer
51 views

Cause of engine oil and coolant mixing in head tank of Vauxhall Zafira

I have a Vauxhall Zafira elite (2008) which has overheated and I noticed oil in the coolant in the head tank. Would a malfunctioning oil cooler cause oil and water to mix in the engine?
6
votes
3answers
3k views

Is it possible to confirm that my oil cooler is leaking (without removing it)?

Eeek, I see oil in the coolant reservoir of my W12 Touareg. As far as I can tell, engine temps were stable and normal prior to this sudden occurrence. Based on this, my top suspect is not the head ...
2
votes
2answers
2k views

Oil Leaking in Back of Engine: Fresh oil under the oil filter cooler

I happened to noticed fresh oil on the backside of my engine ( 98 Mazda 626 GF 2L ), right under the oil filter cooler recently, right after starting up the vehicle after not driving it for a few ...