3
votes
Cause of engine oil and coolant mixing in head tank of Vauxhall Zafira
Would a malfunctioning oil cooler cause oil and water to mix in the engine?
Possibly - but it's pretty unlikely. Nine out of ten times this is going to be a blown head gasket I'm afraid.
- 10.5k
2
votes
Accepted
Blown head gasket? Oil cooler? Something worse?
Here's the thing with the sniffer test, if not done right, you'll easily get a false positive, meaning the liquid will turn yellow or yellowish even though there's no hydrocarbons (my understanding is,...
- 162k
2
votes
Accepted
What's the best way to support/position an oil cooler?
You can attach it anyway you like and the cooler will provide some amount of cooling. I believe the way they are meant to be installed is directly in front of the radiator where it will get direct ...
- 162k
1
vote
Engine oil in Coolant Tank and Coolant overflows
This nearly always is caused by a blown head gasket, a warped or cracked cylinder head, or a warped or cracked block.
I wish there was an easy fix but you need to remove the cylinder head and ...
- 12.1k
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