Jeep Wrangler Forum banner
  • Hey everyone! Enter your ride HERE to be a part of JUNE's Ride of the Month Challenge!

1 - 7 of 7 Posts

·
GO STEELERS !
Joined
·
2,165 Posts
Discussion Starter · #1 ·
Found a little sludge in my radiator overflow and thought maybe it was casting sand since that seems to be an issue with 2014s. Dealership called and said the engine oil cooler was leaking and oil got into the cooling system. I can turn a bolt but I'm not and internal engine guy. Does his explanation make sense?


Sent from my iPhone using Tapatalk
 

·
Registered
Joined
·
35 Posts
Yeah that makes sense to me, I had a vehicle once where the trans cooler is built into the radiator, trans cooler leaked and mixed with antifreeze.
 

·
Registered
Joined
·
810 Posts
Yes it makes sense.. oil in coolant is usually a oil cooler leak.. coolant in oil is usually a real bad thing.
 

·
Premium Member
Joined
·
8,337 Posts
If oil got into the coolant because of an oil cooler leak, there is a possibility that coolant got into the oil as well. While running, oil pressure should exceed radiator pressure, but when cooling down I am not so sure.

Have the service department do a full oil and filter change after they have put the new radiator in.
 

·
Registered
Joined
·
2,866 Posts
In August of last year, 2016, my 2013 Jeep started to overheat. I opened the radiator to check the coolant level and I found a thick sludge in my radiator. The oil cooler had developed an internal leak and engine oil was being pumped into the cooling system. Luckily, my Jeep was still under the 100k mile powertrain warranty so they repaired it for free. I asked the service manager what the cost would have been if I paid for it and he said it was around $1,300. They had to replace the oil cooler and numerous hoses that carry coolant. They also had to very thoroughly flush the cooling system and change the oil.
 

·
GO STEELERS !
Joined
·
2,165 Posts
Discussion Starter · #7 ·
Thanks for the replies. I'll make sure the oil was changed and the system flushed.
 
1 - 7 of 7 Posts
Top