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...
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.
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.
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.
slowhand99 said:
Have you dealt with a Ford dealer recently?
...good point !None the less, if the manufacturer has issued a clear instruction (and will pay for the repair) why would a dealer stick his neck out and do something different ? More importantly, why would a punter allow a dealer to ignore the manufacturer instructions ?
Sounds like this affects 12+ months worth of production. And maybe is multi oil cooler issues (some pipes becoming detached / crimped, some oil cooler structural failure etc). Without a recall to change oil coolers in all of the cars potentially affected could it be Russian Roulette on every journey ?
No doubt Ford are doing the maths - how many will likely fail (and need new engines) vs the cost of changing them all. And we know how good Ford are at such maths.......
I don't want to buy a car if I have to look underneath it before, and after, every journey !
Hi,,, so yh,,, just today I noticed my car leaking this brown milki mass and all engine oil is in coolant system,,, left car at my friends house there I noticed it and found little puddle back home that means drove with low oil all day, had no worning lights or anything,,, mustang is 8 months old 10k miles on it,,, that to expect from ford then I go there tomorrow???
Paulius.lie said:
Hi,,, so yh,,, just today I noticed my car leaking this brown milki mass and all engine oil is in coolant system,,, left car at my friends house there I noticed it and found little puddle back home that means drove with low oil all day, had no worning lights or anything,,, mustang is 8 months old 10k miles on it,,, that to expect from ford then I go there tomorrow???
Get it recovered back to the dealer with Ford assist.The stock oil cooler in the S550 is junk, I have seen so many fail recently especially in the 15-17 models, it was said that FOMoCo did a slight revision to the cooler for the My18+ but that doesn't seem to be the case at all, just a few weeks ago an MY18 failed that I know of, as a precaution I had MAP in Batley change mine to be safe, as I'm running supercharged they did a blog on it and a video of Orange Fury here: mustang gt oil cooler failure
It's been mentioned that the MY21 Mach 1 has an updated oil cooler system so time will tell if the have finally fixed it, but air cooled is the way to go for now and to prevent an engine blow up.
Cheers
It's been mentioned that the MY21 Mach 1 has an updated oil cooler system so time will tell if the have finally fixed it, but air cooled is the way to go for now and to prevent an engine blow up.
Cheers
WayneAustin said:
The stock oil cooler in the S550 is junk, I have seen so many fail recently especially in the 15-17 models, it was said that FOMoCo did a slight revision to the cooler for the My18+ but that doesn't seem to be the case at all, just a few weeks ago an MY18 failed that I know of, as a precaution I had MAP in Batley change mine to be safe, as I'm running supercharged they did a blog on it and a video of Orange Fury here: mustang gt oil cooler failure
It's been mentioned that the MY21 Mach 1 has an updated oil cooler system so time will tell if the have finally fixed it, but air cooled is the way to go for now and to prevent an engine blow up.
Cheers
to clarify that... the lhd mach 1 has an upgraded cooler. The rhd one has to use a different solution because of the power steering rack being different We have yet to see if :It's been mentioned that the MY21 Mach 1 has an updated oil cooler system so time will tell if the have finally fixed it, but air cooled is the way to go for now and to prevent an engine blow up.
Cheers
1. RHD mach 1 uses stock RHD cooler
2. RHD mach 1 has a totally different cooler assembly designed JUST for the small number of RHD mach 1's they will sell (VERY unlikely)
3. RHD mach 1 has stock RHD cooler + a supplementary air/oil cooler.
since they didn't bother putting the US gauge pack in RHD or the US spec diff.. my money is on option 1.
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