pinion seal leak - LS1TECH

Go Back   LS1TECH > VEHICLE SPECIFIC FORUMS > Pontiac Firebird 1967-2002
Sign in using an external account
Register Forgot Password?
Search


Pontiac Firebird 1967-2002 Birds of a feather flock together


pinion seal leak

Reply
 
Thread Tools Search this Thread
Old 01-03-2005, 11:34 PM   #1
Staging Lane
 
Trader Rating: 0
Join Date: Nov 2004
Posts: 62
Default pinion seal leak

i've been hearing about rear pinion seal leaks. my question is, is this something that happens only if one is hard on the car or can this happen under normal driving conditions(cruising and occational bursts of fun). this is in a 02 ws6 with about 17500 miles on it.

thanks
billybob is offline   Reply With Quote
Old 01-04-2005, 08:22 AM   #2
'Bird Director
 
y2k_ta's Avatar
 
Trader Rating: 80
Join Date: Dec 2001
Location: Central Indiana Honors: 4th grade spelling bee contestant
Posts: 12,611
Default

Yep, it can happen under any condition. It's very common for them to leak, and there are many posts here on the subject. I remember reading of someone who had their's replaced multiple times, but it continued to leak. As long as it's not gushing out, I wouldn't worry about it. When it's leaking, it's not losing nearly as much fluid as you'd think it was by just looking at the fluid on the diff. Just don't forget to check the level occasionally.
__________________

www.car-art.us | car-art.us facebook | NMCA LSX #600 / OC #9500
1995 Firebird 4.8L Turbo Street/Strip Project | BUY IN GLASS
y2k_ta is offline   Reply With Quote
Old 01-04-2005, 11:23 AM   #3
TECH Enthusiast
 
ChiefBrody's Avatar
 
Trader Rating: 0
Join Date: Oct 2003
Location: Shelton Ct
Posts: 662
Send a message via AIM to ChiefBrody
Default

Just check the level and you'll be fine. My buddy just had the seal replaced and it still leaked. 2 sets of install kits later and the dealer may have finally did it right. I think having it replaced might be more trouble than its worth. Seems people are too afriad or just don't don't know about rear ends.
__________________
Loomin large like a favorite son!

2000 Ws6, Black M6
Mods; A little from colum A, A little from colum B
ChiefBrody is offline   Reply With Quote
Old 01-04-2005, 07:15 PM   #4
Staging Lane
 
Trader Rating: 0
Join Date: Feb 2004
Location: Redford Michigan
Posts: 69
Send a message via AIM to StavosWS6
Default

Welcome to the club.. Not a single 98+ Fbody I've seen hasn't had this problem. the 'F' stands for Fluid in Fbody's get use to it
__________________
-Stavos

2002 Trans Am - WS.6 (ASC Build #7907)
DetroitArchive
StavosWS6 is offline   Reply With Quote
Old 01-04-2005, 10:53 PM   #5
Staging Lane
 
Trader Rating: 0
Join Date: Nov 2004
Posts: 62
Default

it sounds more like to me "fluid out of f-body". so basicaly if you have a 98-02 you will have piston slap,ticking,leaking rear seal. is there anybody out there who has not had any of these problems. i mean,if these are such common problems such as a leaking rear seal, why could'nt gm fix it right. it sounds like the rear ends in these cars are total crap. i'm not into racing and beating my car to death, i'm pretty much a casual cruiser and was hoping that if treated this way i would not have these issues. if only gm would have fixed these problems and kept making them i'm sure their reputation would have improved. it is definatly the most bad *** looking car on the road, but now i am thinking of selling while it still has reasonably low mileage and getting a gto
billybob is offline   Reply With Quote
Old 01-04-2005, 11:18 PM   #6
TECH Addict
 
Racehead's Avatar
 
Trader Rating: 0
Join Date: Nov 2001
Location: LaConner WA
Posts: 2,663
Send a message via AIM to Racehead
Default

The seals do leak on these cars. I've had mine replaced twice under warranty and then replaced it myself once. Still leaks ?? I'm not really worrying about it now, it doesn't leak enough to drop the fluid level. And BTW I road race and open road race my car and the rear end has held up fine. It just leaks a little is all.
Racehead is offline   Reply With Quote
Old 01-04-2005, 11:31 PM   #7
Staging Lane
 
Trader Rating: 0
Join Date: Nov 2004
Posts: 62
Default

hey race head, how much is noticable,what exactly am i looking for(dripping on the ground or bearly noticable. mine is not leaking yet that i can see. also any recommendation on type(brand) and wieght of fluid to refill diff.

thanks
billybob is offline   Reply With Quote
Old 01-05-2005, 10:48 AM   #8
TECH Enthusiast
 
ChiefBrody's Avatar
 
Trader Rating: 0
Join Date: Oct 2003
Location: Shelton Ct
Posts: 662
Send a message via AIM to ChiefBrody
Default

Most of them just cover the differential and spray onto the underside of the body. I havn't seen one leak to the point of dripping on the floor.
__________________
Loomin large like a favorite son!

2000 Ws6, Black M6
Mods; A little from colum A, A little from colum B
ChiefBrody is offline   Reply With Quote
Old 01-05-2005, 10:53 AM   #9
Staging Lane
 
Trader Rating: 0
Join Date: Feb 2004
Location: Redford Michigan
Posts: 69
Send a message via AIM to StavosWS6
Default

Quote:
Originally Posted by billybob
it sounds more like to me "fluid out of f-body". so basicaly if you have a 98-02 you will have piston slap,ticking,leaking rear seal. is there anybody out there who has not had any of these problems. i mean,if these are such common problems such as a leaking rear seal, why could'nt gm fix it right. it sounds like the rear ends in these cars are total crap. i'm not into racing and beating my car to death, i'm pretty much a casual cruiser and was hoping that if treated this way i would not have these issues. if only gm would have fixed these problems and kept making them i'm sure their reputation would have improved. it is definatly the most bad *** looking car on the road, but now i am thinking of selling while it still has reasonably low mileage and getting a gto
Another problem i discovered is a small oil leak between the oil pan and the transmission. I look it up on the forums guess what?! COMMON PROBLEM! getting it fixed this spring. only have 5k miles left on warrenty.

Anybody know if the warrenty will cover my turn signal switch? the paint all rubbed off on it and it looks nasty, and some times it wont turn the right blinker when i'm changing lane, not the the full blinker mode just 1/2 way.
__________________
-Stavos

2002 Trans Am - WS.6 (ASC Build #7907)
DetroitArchive
StavosWS6 is offline   Reply With Quote
Old 01-05-2005, 07:29 PM   #10
TECH Addict
 
Racehead's Avatar
 
Trader Rating: 0
Join Date: Nov 2001
Location: LaConner WA
Posts: 2,663
Send a message via AIM to Racehead
Default

Quote:
Originally Posted by billybob
hey race head, how much is noticable,what exactly am i looking for(dripping on the ground or bearly noticable. mine is not leaking yet that i can see. also any recommendation on type(brand) and wieght of fluid to refill diff.

thanks
If it's running on the ground I'd get it fixed. If the rear end itself is just a little wet and maybe a little is blowing under the rear of the car then I'd run it. Since i open road race I use redline synthetic. Before I installed my diff cooler I was running the "Heavy Shockproof" stuff. Now I just run the 90/140.
__________________
'71 RS/Z28
M6 468 cu. in. 454
406 rwhp/430 rwtq
11.94 @ 115.25 mph

'04 Audi A6 S-line
2.7t Tiptronic
Racehead is offline   Reply With Quote
Old 01-12-2005, 01:22 AM   #11
TECH Apprentice
 
Trader Rating: 0
Join Date: Dec 2004
Location: River Grove, IL
Posts: 327
Default

I've replaced my pinion seal and flange......it still leaks......total crap
__________________
2001 Trans Am WS6 M6, !CAGS, 5% tint, Flowmaster Cat-Back, NGK TR-55's, MSD Super Conductors, LS7 clutch/LS2 flywheel, Hurst Billet Plus Shifter

2002 Monte Carlo SS - DD

1984 Monte Carlo - Awaiting LS1 transplant

Yes, my rear tires are bald...............no I won't grow up.
PureWS6 is offline   Reply With Quote
Old 01-12-2005, 06:10 PM   #12
Staging Lane
 
Trader Rating: 0
Join Date: Nov 2004
Posts: 62
Default

i guess the leaking seal in the stock rear-end is the unfixable mystry. so basicaly if you want to fix the leak you have to change to a aftermarket rear end,if i am understanding correctly. any thoughts on why gm could not have fixed this problem,most other cars dont have this, so there must be a way,or do you think that since gm knew they where going to discontinue the f-body they had no inclination to fix these prolems, i'm not asking for a perfect car but come'on. sqeaks and rattles. thats just part of the muscle car experiance, but some of the problems are just ******* lame. damn you gm for discontinuing the f-body, damn you even more for not fixing basic stuff. **** you lutz and hire some better q.a.
billybob is offline   Reply With Quote
Old 01-13-2005, 03:20 PM   #13
TECH Regular
 
Trader Rating: 0
Join Date: Feb 2003
Location: Spring Hill, TN
Posts: 451
Default

I've seen many comments @ the leaking pinion seal, but don't have the problem myself. There's one thing I'd like to interject here though. I think it's possible that many people are confusing a pinion seal leak with a leak out the breather tube.
If you see fluid all over your carrier then it's leaking from the breather tube. If you see a thin line of oil horizontally across the floorboard of the car just above the pinion then it's the pinion seal.
I think a lot of people keep throwing seals at a problem that isn't there. These breather tubes are too short and tend to lose fluid normally. The fix is to install a longer breather tube.

Hopefully this will help save someone a lot of frustration.
jyeager is offline   Reply With Quote
Old 01-13-2005, 07:57 PM   #14
TECH Fanatic
 
SmokingWS6's Avatar
 
Trader Rating: 1
Join Date: Jun 2004
Location: St. Louis MO
Posts: 1,801
Send a message via AIM to SmokingWS6 Send a message via Yahoo to SmokingWS6
Default

The Pinion leak is common, you'll be wasting your money if you try to fix it, that is unless its gushing out. I rebuilt my rear(burnt up the posi) and its already leaking after 8k miles. On the question of fluid type, don't use synthetic, and only use the GM posi additive.
__________________
Josh

09 G8 GT, new toy. stock for now, tuned by me

04 Silverado ECSB 4.8 4x2, stock, tuned by me

98 Trans Am WS6 - Heads/Cam, the usuals. Tuned by me. sold.
SmokingWS6 is offline   Reply With Quote
Old 01-13-2005, 08:39 PM   #15
TECH Apprentice
 
fa18007's Avatar
 
Trader Rating: 0
Join Date: Dec 2004
Posts: 356
Default

Just had mine fixed under warranty. I gues these things are like military planes...if it does not leak, then you are out of fluid!!!
fa18007 is offline   Reply With Quote
Old 01-13-2005, 10:37 PM   #16
TECH Fanatic
 
SmokingWS6's Avatar
 
Trader Rating: 1
Join Date: Jun 2004
Location: St. Louis MO
Posts: 1,801
Send a message via AIM to SmokingWS6 Send a message via Yahoo to SmokingWS6
Default

Quote:
Originally Posted by fa18007
Just had mine fixed under warranty. I gues these things are like military planes...if it does not leak, then you are out of fluid!!!
Exactly
__________________
Josh

09 G8 GT, new toy. stock for now, tuned by me

04 Silverado ECSB 4.8 4x2, stock, tuned by me

98 Trans Am WS6 - Heads/Cam, the usuals. Tuned by me. sold.
SmokingWS6 is offline   Reply With Quote
Old 01-22-2005, 01:47 AM   #17
TECH Regular
 
Muffracing's Avatar
 
Trader Rating: 0
Join Date: Jan 2004
Location: Minnesota
Posts: 442
Default

I put an engine in a '95 and the pinion seal was leaking on that, as was my '99 enve after replacing the seal once and on my '02.
__________________
'02 TA M6 WS6 hood, K&N, B&M My Cardomain
'91 S10 Carbed Vortec 4.3
'83 C10 SWB stock
'63 Riviera 401 Nailhead
Muffracing is offline   Reply With Quote
Old 01-22-2005, 01:47 AM
LS1Tech
Pontiac Firebird




Paid Advertisement
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Changed pinion seal still leaking.. mctwist77 Gears & Axles 1 10-12-2013 08:51 PM
Bearing change and rear end gears are now toast MFJ Gears & Axles 13 03-22-2012 01:24 PM
Moser 12 bolt pinion seal iowackers Gears & Axles 1 03-28-2010 04:19 AM
bad vibration.. pinion seal culprit? tribaltalon Gears & Axles 3 08-06-2009 10:15 AM
Rear Pinion Seal Leak on '95 Trans Am marc1130 Gears & Axles 27 08-10-2006 02:32 PM


Tags
1969, 2001, a6, audi, change, firebird, gto, leak, leaking, normal, pinion, replacement, seal, small, stop


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off


 

All times are GMT -5. The time now is 04:51 PM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Advertising - Terms of Service - Privacy Statement - Terms of Service - JOBS
Emails & Contact Details