Oil leak???? Help!

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Nov 10, 2018 | 05:01 PM

byefi

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From: quebec

Oil leak???? Help!

What is leaking? I have searched for hours online to no avail. It is motor oil. What is this hose called and what is it going into in photo and where does it go to?

Last edited by byefi; Nov 10, 2018 at 05:12 PM. Reason: Add photo

Nov 10, 2018 | 05:37 PM

k7q

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From: ca

Transmission cooler line

Nov 10, 2018 | 05:54 PM

byefi

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From: quebec

Thanks. So it is tranny fluid? Sorry my ignorance is epic.

Last edited by byefi; Nov 10, 2018 at 06:04 PM.

Nov 10, 2018 | 06:09 PM

Bocatrip

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Quote:

Originally Posted by byefi

Thanks. So it is tranny fluid? Sorry my ignorance is epic.

Hard to decipher from your pics with all the rust on many lines.... make sure the trans leak is not coming from the shifter bushings. I had a trans leak which also looked like it was coming from the pan but turned out to be the shifter bushings which is quite common. The pan leaking is less a problem. and also less common unless the service has been done before and the pan was not sealed properly. Good luck and let us know how you make out.

Nov 10, 2018 | 06:20 PM

byefi

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From: quebec

With the engine running it is a leak dripping every second about from that obvious problem line area. Then when I turn off engine it slowly but surely stops dripping after say an hour. What is weird is my engine oil is low missing about a pint which btw is about what is the amount on the ground and tranny oil level is ok?! I am stumped and will look over it all again. The sample I took suggests motor oil. Weird.

Nov 10, 2018 | 06:21 PM

rkw77080

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From: Texas

Quote:

Originally Posted by k7q

Transmission cooler line

It looks like the cooler line is rusted through. Your transmission has a ATF dipstick to check level. I suspect your ATF level is low.

Nov 10, 2018 | 06:29 PM

byefi

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From: quebec

ok great thx. Is the cooler line under pressure like a brake line? So like maybe I can do a quick fix rubber type hose wrapping around it to stop the leak? Just any short term fix idea to be able to get to a mechanic really.

BTW that's a nice looking cooler line!

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Nov 10, 2018 | 07:38 PM

byefi

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From: quebec

ok thx. I see there are rubber hoses on these (https://www.ebay.com/itm/01-03-LEXUS-LS430-TRANSMISSION-OIL-COOLER-LINE-HOSE-PIPE-OEM/382593727867?fits=Model%3ALS430&hash=item59145cfd7b:g:JrkAAOSwTY9bxb2C:rk:1

f:0) so maybe not too much pressure. Maybe do a temporary wrap around bandaid with some threaded good quality rubber hose. Just want to slow the leak to ride a few miles to my mechanic.

Last edited by byefi; Nov 10, 2018 at 07:43 PM.

Nov 10, 2018 | 08:59 PM

#10

bradland

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From: 565 St Peter NOLA

The lines are the same for all 430's, 2001 to 2003 AND 2003 to 2006, about $50 ea new.
https://www.lexussouthatlantaparts.c...category=21756

Seeing those pics reminds me why I tolerate the blistering hot Arizona summers!

Nov 10, 2018 | 10:39 PM

#11

BCT

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From: Kentucky

Quote:

Originally Posted by byefi

f:0) so maybe not too much pressure. Maybe do a temporary wrap around bandaid with some threaded good quality rubber hose. Just want to slow the leak to ride a few miles to my mechanic.

I would make sure to add transmission fluid and engine oil (whichever that is low) if you decide to drive the car. I understand it is only a few miles but you do not want to run out of fluids. Personally, from looking at that rusted line, it looks very brittle. If it is my car, I would not drive it. I would have it towed. I would also check from from front to rear of car, what else is rusted, and need to be replaced.

I spray the underside of my car with fluid film liberally. It is cheap and very good rust prevention.

Nov 11, 2018 | 06:05 AM

#12

byefi

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From: quebec

Thx for the "fluid film" anti rust info. Looks promising. For heavy duty rust prevention I go with Chassis Saver..a god send product imo.

Nov 11, 2018 | 07:24 AM

#13

warminwisc

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From: wi

Wow wonder if my underbody looks like that? I am up fore oil change I will check. Great job on helping out great forum.

Nov 11, 2018 | 09:44 AM

#14

byefi

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From: quebec

Yes finally it is trans oil leaking just much in need of changing as is quite dark so thought at first it was motor oil. Thx for all input guys..I know now what to do..