It started on my 94LT1 Caddy when the lower fitting for the oil cooler line started dripping fairly heavily. I noticed right away before any major oil loss and invesitgated... no rust or bad fitting, or hole in the line. Just seemed to be leaking around the threads.
I figured a cracked oil coller tank in the radiator and changed radiators since I had a spare radiator already.
When changing radiators, a bunch of brown coolant came out even though I had green coolant. Thickness is pretty normal and not really any caking up, but the overfill tank has brown residue. Oil level a litlle low, so pretty sure oil mixed into coolant at radiator.
Flushed and cleaned, and then new radiator.
Oil line still leaking for some reason with new (used) radiator.
Changed oil lines with brand new set, and still dripping at fitting at radiator tank.
When changing oil at this same time, no excess oil came out (removed 4 qts) and no signs of coolant. I know I added about 4.5 qts to engine, and I am four dots low on stick after running engine for about 3 minutes.
So.... unless my spare (used) radiator also is bad at the cooler tank, how am I low on oil?
Also, how is fitting on lower part of tank leaking again? Leaks behind threads, but that would have to be insane pressure to blow by threaded fittings.
I need to check coolant again to see if getting oil in it.
Also doing an engine compression check, although pretty certain head gasket cannot cause oil into coolant (would be vice versa).
Search function brought up two similar situations, but neither guy posted the findings or results.
Any ideas? Thanks
I figured a cracked oil coller tank in the radiator and changed radiators since I had a spare radiator already.
When changing radiators, a bunch of brown coolant came out even though I had green coolant. Thickness is pretty normal and not really any caking up, but the overfill tank has brown residue. Oil level a litlle low, so pretty sure oil mixed into coolant at radiator.
Flushed and cleaned, and then new radiator.
Oil line still leaking for some reason with new (used) radiator.
Changed oil lines with brand new set, and still dripping at fitting at radiator tank.
When changing oil at this same time, no excess oil came out (removed 4 qts) and no signs of coolant. I know I added about 4.5 qts to engine, and I am four dots low on stick after running engine for about 3 minutes.
So.... unless my spare (used) radiator also is bad at the cooler tank, how am I low on oil?
Also, how is fitting on lower part of tank leaking again? Leaks behind threads, but that would have to be insane pressure to blow by threaded fittings.
I need to check coolant again to see if getting oil in it.
Also doing an engine compression check, although pretty certain head gasket cannot cause oil into coolant (would be vice versa).
Search function brought up two similar situations, but neither guy posted the findings or results.
Any ideas? Thanks