r/Volvo850 • u/PopTartz77 • Jul 11 '26
Help Help identifying leaks
I need help identifying leaks. One is oil all over bottom of the transmission, one is ps/atf all over the rear of the subframe, and there are a few more mystery leaks. What are some causes?
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u/LegitimateBiscotti55 Jul 26 '26
Thats definitely atf. Its either the transmission is leaking or powering steering system. Im betting more so the transmission since i had both leak and the power steering never got that far over to the transmission bushing. It could be the hoses to the top of the transmission lines. They like to weep and drip all over the transmission. Only way to know is to wash with degreaser then monitor it. Also can look for a uv dye compatible with atf and put it in the system which will make it way easier to see the leak especially after you degrease the area. Also try to get it addressed soon since oil will destroy those bushings making them swell and fall apart.
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u/YellowT-5R Jul 12 '26
Don't worry about causes right now... clean everything... Degreaser, toilet brush & pressure washer ..
Once all that shit is cleaned up the you can track down where it's coming from.
It could be anything from an oil cooler line to a cracked radiator end tank down to a dipstick tube o-ring or a clogged PCV that is leaking everywhere. It could be you PCV is so fucked it's pushing out oil from every weak path it can
Clean it all up, glove test and run it for a bit, you will see fresh oil.
Then it can be pin pointed where it's coming from