Oil cooler failure?

[csnider]

Anyone here ever have the oil cooler in their engine fail? what was the symptom? Oil in the coolant, coolant in the oil? My brothers truck was dumping coolant/oil mixture in his driveway from the radiator overflow after he drove it. I suspect the headgasket may have blown but also remember reading somewere that this could be caused by a oil cooler or oil cooler gasket leak.

. might be easier to check that first than pull the lines /injectors and head. any tell tale signs to look for before diagnosing. . I'll get more info from him. .

Thanks for any info. .

Chuck

 

[JFaughn]

Yes they can fail .
A compression test will tell if its a HG .
Are you seeing coolant in crank case , that is an issue , coolant eats away at babit in bearings .

 

[csnider]

No coolant in the crankcase at all (lucky!), just over 1 gallon of oil left in there!

gonna pull the oil cooler first and check it for leaks.....

 

[PToombs]

My bet is the cooler! If you have no oil and what's left has no A/F... ... Usually the gasket will let fluid go both ways. And it won't pump oil out that fast.

 

[RKroeger]

most likely the cooler,it comes out easy,its behind the oilfilter on side of block,changed one last year helped me get my truck for a steal,fixed it for under $250

 

[csnider]

Yep,

that was it!. . He's rolling again. . the cooler was leaking somewere in the middle. Took a bit of pressure to reveal its leak. .

Thanks for all the advice!!!