Antifreeze and Engine Coolant
Ford Expedition XLT

If there is oil in radiator not in block what is the problem?


Top Answer
User Avatar
Wiki User
2015-07-16 19:23:37
2015-07-16 19:23:37

Without any other info I'd say you have a bad headgasket or a cracked head/block.

Generally oil has to be pressurized to show up in coolant, or the reverse would be true and you'd have coolant in the oil also making it milky white.

So... oil is leaking from somewhere pressurized to coolant.. Pressurized oil only comes up to the head in one passage, and that has likely developed a leak to the nearest coolant passage, most likely through a bad head gasket.

This is more likely if it's been recently overheated.

Some vehicles have an internal oil cooler located in the radiator. If this cooler has a leak then you will get oil in your radiator. If the fluid inside the radiator is a pinkish, reddish color the it would be the internal transmission dooler in the radiator


Related Questions

User Avatar

Some vehicles run oil line through the radiator for cooling, instead of using seperate oil cooler, which just looks like a mini radiator.

User Avatar

hi, blown head gasket, cracked head or block or automatic transmission oil cooler in radiator leaking

User Avatar

what do you mean what to do? do you want to have an idea of what it could be? it could be the transmition fluid cooling lines(tank) that sometimes are located inside your radiator. if the lines leak you will find "oil" in your radiator. if that is not your problem then either a head gasket or a crack engine block.

User Avatar

You have a blown headgasket or cracked cylinder head/engine block. It can also be a leak at the oil cooler. Its at the oil filter mounting, check that 1st.

User Avatar

Usually oil in the radiator or coolant in the oil is either a blown head gasket or a cracked head or block. Most often it is the gasket.PatPortland, OR.

Copyright © 2020 Multiply Media, LLC. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply.