Oil cooler failure
Discussion
April 2016 built car. Under 5k miles. This is the 4th issue I have seen so far so may be more out there. Keep an eye or your coolant bottle. Car is with Ford now. Will hopefully have a full diagnosis in the next couple of days
http://www.mustang6g.com/forums/showthread.php?t=8...
http://www.mustang6g.com/forums/showthread.php?t=8...
OddCat said:
I have limited knowledge of things mechanical but am (or maybe after reading this was !) in the market for a Mustang.
My understanding is that, within the heat exchanger / radiator, the hot oil moved through pipes which are themselves surrounded by coolant. So it is a kind of combination secondary radiator thing.
That being the case I would have thought that:
1. a hole in the heat exchanger unit casing would leak only coolant onto the floor - with the oil still being within the pipes within the heat exchanger (unless, say, a stone went straight through the whole thing and damaged the oil pipes within it) ?
2. the only way the heat exchanger could leak oil onto the floor (and not coolant) would be if one of the oil pipes running to it were to become detached ?
3. other than a hole through the lot, the only way that oil and water could mix is if one of the pipes in the cooler split (although there would be no external leakage) ?
4. if there is oil in the water then there is water in the oil.
I still don't understand how there can be only oil on the floor and also oil in the water. Feels like that might be two things.
Anyway, the Ford TSB on the other thread definitely says if there is evidence of cross contamination either way then the solution is to "replace the engine assembly". Which means replace the engine. All of the steps that follow in the TSB that are just about flushing out the heater system while the engine is out....
So there is no worrying about future engine problems on a case where there is clear evidence of cross contamination. The engine is going to be replaced.
As of right now, the engine will not be replaced. I have emailed my dealer asking why and what guarantee I have for future internal engine problems. My understanding is that, within the heat exchanger / radiator, the hot oil moved through pipes which are themselves surrounded by coolant. So it is a kind of combination secondary radiator thing.
That being the case I would have thought that:
1. a hole in the heat exchanger unit casing would leak only coolant onto the floor - with the oil still being within the pipes within the heat exchanger (unless, say, a stone went straight through the whole thing and damaged the oil pipes within it) ?
2. the only way the heat exchanger could leak oil onto the floor (and not coolant) would be if one of the oil pipes running to it were to become detached ?
3. other than a hole through the lot, the only way that oil and water could mix is if one of the pipes in the cooler split (although there would be no external leakage) ?
4. if there is oil in the water then there is water in the oil.
I still don't understand how there can be only oil on the floor and also oil in the water. Feels like that might be two things.
Anyway, the Ford TSB on the other thread definitely says if there is evidence of cross contamination either way then the solution is to "replace the engine assembly". Which means replace the engine. All of the steps that follow in the TSB that are just about flushing out the heater system while the engine is out....
So there is no worrying about future engine problems on a case where there is clear evidence of cross contamination. The engine is going to be replaced.
OddCat said:
I have limited knowledge of things mechanical but am (or maybe after reading this was !) in the market for a Mustang.
My understanding is that, within the heat exchanger / radiator, the hot oil moved through pipes which are themselves surrounded by coolant. So it is a kind of combination secondary radiator thing.
That being the case I would have thought that:
1. a hole in the heat exchanger unit casing would leak only coolant onto the floor - with the oil still being within the pipes within the heat exchanger (unless, say, a stone went straight through the whole thing and damaged the oil pipes within it) ?
2. the only way the heat exchanger could leak oil onto the floor (and not coolant) would be if one of the oil pipes running to it were to become detached ?
3. other than a hole through the lot, the only way that oil and water could mix is if one of the pipes in the cooler split (although there would be no external leakage) ?
4. if there is oil in the water then there is water in the oil.
I still don't understand how there can be only oil on the floor and also oil in the water. Feels like that might be two things.
Anyway, the Ford TSB on the other thread definitely says if there is evidence of cross contamination either way then the solution is to "replace the engine assembly". Which means replace the engine. All of the steps that follow in the TSB that are just about flushing out the heater system while the engine is out....
So there is no worrying about future engine problems on a case where there is clear evidence of cross contamination. The engine is going to be replaced.
As of right now, the engine will not be replaced. I have emailed my dealer asking why and what guarantee I have for future internal engine problems. My understanding is that, within the heat exchanger / radiator, the hot oil moved through pipes which are themselves surrounded by coolant. So it is a kind of combination secondary radiator thing.
That being the case I would have thought that:
1. a hole in the heat exchanger unit casing would leak only coolant onto the floor - with the oil still being within the pipes within the heat exchanger (unless, say, a stone went straight through the whole thing and damaged the oil pipes within it) ?
2. the only way the heat exchanger could leak oil onto the floor (and not coolant) would be if one of the oil pipes running to it were to become detached ?
3. other than a hole through the lot, the only way that oil and water could mix is if one of the pipes in the cooler split (although there would be no external leakage) ?
4. if there is oil in the water then there is water in the oil.
I still don't understand how there can be only oil on the floor and also oil in the water. Feels like that might be two things.
Anyway, the Ford TSB on the other thread definitely says if there is evidence of cross contamination either way then the solution is to "replace the engine assembly". Which means replace the engine. All of the steps that follow in the TSB that are just about flushing out the heater system while the engine is out....
So there is no worrying about future engine problems on a case where there is clear evidence of cross contamination. The engine is going to be replaced.
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