2001 Lexus IS300 oil leak

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Oct 11, 2017 | 11:37 AM

#16

is2003

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From: New Jersey

Is there a way to replace the crank seal with out taking off the valve cover

Dec 6, 2017 | 10:51 AM

#17

JasonG95

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From: MS

Ive got an almost identical leak on my 05. I have replaced cam seals, crank seals, water pump, timing belt, oil pan seal at 144,000 miles. Less than 300 miles later my engine was coated in oil as it was before. Any ideas what i should be looking at next? Oil pump seals?

Dec 7, 2017 | 04:16 PM

#18

1997Soarer

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From: IL

Did you do the valve cover gaskets too? BOTH of them? They're known to start to leak as soon as 15k miles after they've been changed. It's a major design flaw that GE valve covers have

Dec 8, 2017 | 07:51 AM

#19

JasonG95

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From: MS

1997Soarer Yes the valve cover gaskets were done as well. I can see the valve cover is clean. Im only slinging oil inside the timing belt housing

Last edited by JasonG95; Dec 17, 2017 at 02:31 AM. Reason: Didnt tag other user

Dec 17, 2017 | 02:32 AM

#20

JasonG95

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From: MS

Quote:

Originally Posted by 1997Soarer

Did you do the valve cover gaskets too? BOTH of them? They're known to start to leak as soon as 15k miles after they've been changed. It's a major design flaw that GE valve covers have

1997Soarer Yes the valve cover gaskets were done as well. I can see the valve cover is clean. Im only slinging oil inside the timing belt housing.

Mar 27, 2018 | 07:08 AM

#21

JasonG95

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From: MS

Ever figure out where the leak was from?

Have not determined mine yet just adding oil and keeping it as clean as possible until i can get it back on a lift.

Mar 31, 2018 | 05:19 PM

#22

Garfield85

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From: Georgia

Oil leak

Quote:

Originally Posted by finga11

have 2001 lexus is300 roughly 145000 miles have a pretty bad oil leak was hoping for some information as to cause seems to become from the vvti labeled black plastic casing here are some pics have pretty nice amount of oil on my driveway have been topping it off as needed but want to fix the problem

Ok, I had the same problem. You have to change the cam seals, crank seals and vvt-i o-ring that's inside the intake vvt-i gear. They go bad over time and temperature difference. Once you get that done you'll be good to good. Also, if that's leaking you might as well chance the rear main seal. To be honest, all gaskets that are easily accessible. Oil pan gasket, transmission pan gasket and filter, and thermostat. That all I got but that should lead you in the right direction.

May 3, 2018 | 09:06 AM

#23

Heykw

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From: Fl

Oil Leaking on to water pump

My 03 is leaking oil on the exhaust side behind the rear timing belt cover. It’s dripping oil onto the water pump. I’m guessing it’s the exhaust cam seal. Timing belt and all seals replaced less than 10k ago car has 223k on it now. Anyone have any insight?

May 8, 2018 | 03:06 PM

#24

Heykw

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From: Fl

May 21, 2018 | 01:59 AM

#25

Heykw

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From: Fl

Update
I resealed the cam caps and replaced the valve cover gaskets at the same time using the Toyota sealent and valve cover gaskets.
The leak appeared to be fixed.��
Hopefully this information will help someone else in the future. Thank you all for your help

Apr 19, 2019 | 12:15 PM

#26

Carla

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From: MD

Oil everywhere

Just bought this car 2 wks ago at the auction. Drives good but its leaking oil and possibly transmission fluid like crazy. Does anyone have any suggestions?

Jun 8, 2023 | 09:43 PM

#27

LexusKnown

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Joined: Mar 2013

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From: Nebraska

I am having this exact same problem, definitely leaking transmission fluid as well as oil in the front

Quote:

Originally Posted by Carla

Just bought this car 2 wks ago at the auction. Drives good but its leaking oil and possibly transmission fluid like crazy. Does anyone have any suggestions?