User Tag List

Reply
 
Thread Tools Rate Thread Display Modes
Old 04-24-2019, 02:49 AM #1
westdiablo westdiablo is offline
Member
 
Join Date: Jul 2015
Location: SF Bay Area
Posts: 73
westdiablo is on a distinguished road
westdiablo westdiablo is offline
Member
 
Join Date: Jul 2015
Location: SF Bay Area
Posts: 73
westdiablo is on a distinguished road
Oily transmission pan

The underside of my Runner is clean (86k miles CA truck). After seeing pics of Midwest and Northeast Runners...almost embarrassingly clean. It's like new all over, except...the transmission pan is oily.

Nothing oily higher up or fore or aft. Just the pan. No drips.

Is that a gasket leak, or...?

Should I do something preventive?


Sent from my iPhone using Tapatalk
__________________
2002 SR5 Sport Edition; Thundercloud; All Stock.
westdiablo is offline   Reply With QuoteReply With Quote
Old 04-24-2019, 08:14 AM #2
thegipper's Avatar
thegipper thegipper is offline
Senior Member
 
Join Date: Mar 2016
Location: West Bend, WI
Posts: 2,040
Real Name: Mike
thegipper will become famous soon enough
thegipper thegipper is offline
Senior Member
thegipper's Avatar
 
Join Date: Mar 2016
Location: West Bend, WI
Posts: 2,040
Real Name: Mike
thegipper will become famous soon enough
Clean off the pan real good and keep a close eye on it so you can pin point where the leak is. On face value, it sounds like the pan itself is leaking. From the factory they used RTV to seal it to the tranny. If its been removed before, it could have a cork/rubber gasket that may be leaking also.

You could also make sure all of the bolts are torqued to spec and see if that stops the leak first.

If it is the pan that's leaking, it's very easy to remove. I've been using a rubber gasket instead of RTV/FIPG for years now without any leaks.
__________________
1997 SR5 4x4 Auto, 99' tall coils up front, OME 906's, Truetrac LSD, Airaid MIT
1999 SR5 4x4 Auto for parts
2011 Camry SE V6
2011 Highlander Limited
thegipper is offline   Reply With QuoteReply With Quote
Old 04-24-2019, 09:11 AM #3
rightyouareken rightyouareken is offline
Member
 
Join Date: Feb 2019
Location: Seattle, WA
Posts: 129
rightyouareken will become famous soon enough
rightyouareken rightyouareken is offline
Member
 
Join Date: Feb 2019
Location: Seattle, WA
Posts: 129
rightyouareken will become famous soon enough
Is it dirty with transmission fluid or engine oil? Transmission fluid is red and has a distinct smell, while engine oil is...well engine oil
__________________
2002 4Runner SR5 4WD
2018 VW Golf R
1998 BMW M3/4/5
rightyouareken is offline   Reply With QuoteReply With Quote
Old 04-24-2019, 09:50 AM #4
westdiablo westdiablo is offline
Member
 
Join Date: Jul 2015
Location: SF Bay Area
Posts: 73
westdiablo is on a distinguished road
westdiablo westdiablo is offline
Member
 
Join Date: Jul 2015
Location: SF Bay Area
Posts: 73
westdiablo is on a distinguished road
Quote:
Originally Posted by rightyouareken View Post
Is it dirty with transmission fluid or engine oil? Transmission fluid is red and has a distinct smell, while engine oil is...well engine oil


Hard to tell since it's so coated with dust and dirt.


Sent from my iPhone using Tapatalk
__________________
2002 SR5 Sport Edition; Thundercloud; All Stock.
westdiablo is offline   Reply With QuoteReply With Quote
Old 04-24-2019, 10:13 AM #5
rightyouareken rightyouareken is offline
Member
 
Join Date: Feb 2019
Location: Seattle, WA
Posts: 129
rightyouareken will become famous soon enough
rightyouareken rightyouareken is offline
Member
 
Join Date: Feb 2019
Location: Seattle, WA
Posts: 129
rightyouareken will become famous soon enough
Quote:
Originally Posted by westdiablo View Post
Hard to tell since it's so coated with dust and dirt.
If I had to put money on the likely cause, I think a valve cover gasket leak is much more likely than a transmission pan gasket leak. Valve cover gasket leaks (and half moon leaks) are very common on these engines.

It can be hard to tell where oil is coming from since it gets blown all around and drips in strange ways sometimes. I'd wager that if you felt around the backside of both valve covers you'd find one of them is leaking. I say this as someone who's valve cover gasket is leaking and making the transmission pan and steering rack look oily
__________________
2002 4Runner SR5 4WD
2018 VW Golf R
1998 BMW M3/4/5
rightyouareken is offline   Reply With QuoteReply With Quote
Old 04-24-2019, 11:26 AM #6
westdiablo westdiablo is offline
Member
 
Join Date: Jul 2015
Location: SF Bay Area
Posts: 73
westdiablo is on a distinguished road
westdiablo westdiablo is offline
Member
 
Join Date: Jul 2015
Location: SF Bay Area
Posts: 73
westdiablo is on a distinguished road
Quote:
Originally Posted by rightyouareken View Post
If I had to put money on the likely cause, I think a valve cover gasket leak is much more likely than a transmission pan gasket leak. Valve cover gasket leaks (and half moon leaks) are very common on these engines.


Good tip. I'll check that.

Our last Runner just puked oil from the valve cover gaskets. Oil was all over everything. Replaced those and never had another drop.


Sent from my iPhone using Tapatalk
__________________
2002 SR5 Sport Edition; Thundercloud; All Stock.
westdiablo is offline   Reply With QuoteReply With Quote
Reply

Tags
clean , gasket , oily , pan , transmission

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Oily spark plug on 4th Gen @ 65K malmgren Maintenance/Detailing 4 01-05-2015 10:42 AM
Hot, Bothered and Oily Simonpk 5th gen T4Rs 0 11-28-2014 08:39 PM
Oily spark plug. johnmack Classic T4Rs 2 08-15-2014 12:08 PM
Fightman's oily mess! fightman80 3rd gen T4Rs 8 10-20-2012 06:55 PM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -4. The time now is 05:05 AM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Feedback Buttons provided by Advanced Post Thanks / Like (Lite) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
User Alert System provided by Advanced User Tagging (Lite) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
***This site is an unofficial Toyota site, and is not officially endorsed, supported, authorized by or affiliated with Toyota. All company, product, or service names references in this web site are used for identification purposes only and may be trademarks of their respective owners. The Toyota name, marks, designs and logos, as well as Toyota model names, are registered trademarks of Toyota Motor Corporation***Ad Management plugin by RedTyger
 
Copyright © 2019


Garage Plus vBulletin Plugins by Drive Thru Online, Inc.