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1997 S90 help identify leaks!

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Old 03-23-2019, 01:31 PM
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Default 1997 S90 help identify leaks!

Transmission fluid look like its coming from behind the wiring, to the right of the "x", a black plastic piece. Sensor?




Oil leaking on those 3 main bolts.


Red oil from farther toward front end. Maybe power steering?










Looks like oil possible coming from higher up? Photo taken looking up from passenger side engine area.
 
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Old 03-23-2019, 03:43 PM
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That plastic piece has 1-10mm bolt that I removed and oil started pouring out. I don't know what that piece is for. It doesn't have any connectors and looks like a plug of sorts. I torqued it back thinking maybe it was just not tight enough, but I see it start to seep again. I definitely think that is the source of my big transmission leak, but I don't know what the part is or what it does other than act as a plug?
 
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Old 03-23-2019, 04:07 PM
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Old 03-23-2019, 04:18 PM
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parts #40 & 42. They don't sell them anymore. Any idea why it would be leaking and how to remedy it?
 
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Old 03-23-2019, 08:04 PM
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If that's the source of the leak, just reseal that plug/nut and you should be good. You don't need to replace them--plenty of sealants on the markets can do the job.
Looks like you a rear main seal leak as well...
 
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Old 03-23-2019, 08:42 PM
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Originally Posted by lev View Post
If that's the source of the leak, just reseal that plug/nut and you should be good. You don't need to replace them--plenty of sealants on the markets can do the job.
Looks like you a rear main seal leak as well...
Thanks! How do you think I should go about resealing it? Drain the tranny fluid so it is dry then apply sealer to the whole surface underneath the part? Do you think a bigger washer would help as well to displace force evenly? Any recommendations on products for rear seal fixes that stop the leak?
 
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Old 03-24-2019, 02:17 AM
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Any kind of oil resistant over the counter sealant tube will do, "make a gasket" types work well... I don't think you need a bigger washer, just seal it well, clean it well before applying.
 
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Old 03-24-2019, 02:06 PM
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Originally Posted by lev View Post
Any kind of oil resistant over the counter sealant tube will do, "make a gasket" types work well... I don't think you need a bigger washer, just seal it well, clean it well before applying.
Ok will do. Before the leak I got mobile 3309 atf. Can I put regular walmart atf?
 
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