Transmission case EXPLODES AGAIN!!!!!!!!!!!!!!!!!!! - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 05-21-2004, 10:13 PM   #1
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jan 2004
Location: Nebraska
Posts: 30
Thanks: 0
Thanked 0 Times in 0 Posts
JrsAngel is on a distinguished road
Default Transmission case EXPLODES AGAIN!!!!!!!!!!!!!!!!!!!

I am wondering if any one has any ideas about a seem to be frequent tranny problem. We have replaced the spider gears and differential case on our car. It is on the right side of tranny behind the tire. We had a hole in it the first time the size of a fist. The spider gear broke and blew out thru the case. We replaced and everything seemed fine no fluid leaks. Ran great. Now about 800 miles we had something break and go thru the case again. This time though is a small hole about the size of a pencil. Was wondering if anyone has heard of this and how to stop it. Can we check to see if something from the previous failure is stuck inside tranny. We put a magnet in the tranny when we did the last replace and could not find anything. Any info would be a big help. Love the car but am scared to keep it.

Thanks
Dawn
JrsAngel is offline   Reply With Quote
Old 05-22-2004, 02:21 AM   #2
Member
Posts like a V-Tak
 
Join Date: Jun 2003
Location: Mid Missouri
Posts: 35
Thanks: 0
Thanked 0 Times in 0 Posts
bigtjohnson is on a distinguished road
Default same problem

I've had my differential exit the right side of the case 3 times so I'd like to know why also.
The whole differntial setup on the 4t60'* seems small and weak to me. Hmmm.

ctj
bigtjohnson is offline   Reply With Quote
Old 05-22-2004, 11:40 PM   #3
Junior Member
 
Join Date: May 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
SSEi95 is on a distinguished road
Default

I blew mine out about 20000 miles ago as well. I'm guessing yours looked something like this:


I still have the old tranny and I am thinking about doing a teamdown of it just to see what it'* like inside. It'* already shot so what harm can I do!
SSEi95 is offline   Reply With Quote
Old 05-23-2004, 01:19 AM   #4
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jan 2004
Location: Nebraska
Posts: 30
Thanks: 0
Thanked 0 Times in 0 Posts
JrsAngel is on a distinguished road
Default

yes we replaced the differential and the case. Never thought in a million years after the first time that it would happen again. Our first blow up looked exactly like that picture. This time is very small hole about pencil size. Was told that maybe the small pin the the differential broke and came thru the case. To my knowledge car has been reasonably well cared for. Have only had about 5 months. It is not supercharged.
JrsAngel is offline   Reply With Quote
Old 05-23-2004, 06:02 PM   #5
Junior Member
 
Join Date: May 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
SSEi95 is on a distinguished road
Default

I plan on having the entire proccess on tape (either pics or vids). I will post whatever I do. No gaurentees on the accuracy of the process since I don't plan on reassemling it.
SSEi95 is offline   Reply With Quote
Old 05-25-2004, 12:48 PM   #6
Senior Member
Posts like a Camaro
 
Join Date: Jan 2004
Posts: 1,166
Thanks: 0
Thanked 1 Time in 1 Post
mkaake is on a distinguished road
Default

Quote:
Originally Posted by jr's3800
when you pull the valve body off of the transmission, watch out for falling check balls..
lol - sooo true.

try to wear a pair of gloves too... there'* some good sharp edges in there that you can miss if you're not careful.

did you fix the previous problem yourself, or did a tranny shop do it?

matt
mkaake is offline   Reply With Quote
Old 05-25-2004, 06:12 PM   #7
Junior Member
 
Join Date: May 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
SSEi95 is on a distinguished road
Default

The tranny I am ripping apart was once rebuilt already by a tranny shop 30000 miles earlier. Not sure about the one in the first post.
SSEi95 is offline   Reply With Quote
Old 05-26-2004, 01:03 AM   #8
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jan 2004
Location: Nebraska
Posts: 30
Thanks: 0
Thanked 0 Times in 0 Posts
JrsAngel is on a distinguished road
Default

we fixed the tranny ourselves bought the parts from tranny shop. My dad is certified mechanic. But this problem has stumped him. He plans on fixing the problem again but are still unclear about cars future
JrsAngel is offline   Reply With Quote
Old 05-26-2004, 08:34 AM   #9
Senior Member
Posts like a Camaro
 
Join Date: Jan 2004
Posts: 1,166
Thanks: 0
Thanked 1 Time in 1 Post
mkaake is on a distinguished road
Default

did you guys r&r everything in the tranny, or just what seemed to be the affected parts?

hmmm.... strange indeed... makes me wonder if there'* some 'foreign material' in there...

well good luck on getting it right this time - just make sure you take everything out, and make sure that everything that goes back in is as clean as humanly possible, w/o leaving any fibers or material on anything (oh yeah, and soak the clutch packs in tranny fluid for a while before you do it, but i'm sure he knew that one already, since you didn't burn your clutches : ) )

matt
mkaake is offline   Reply With Quote
Old 05-26-2004, 10:10 PM   #10
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jan 2004
Location: Nebraska
Posts: 30
Thanks: 0
Thanked 0 Times in 0 Posts
JrsAngel is on a distinguished road
Default

we only replaced the case and put new pins and spider gears in it. This time we are putting a whole new differential and case on it.
JrsAngel is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Brake pedal low again and again and again NMP1 GMC/Chevrolet Truck/SUV 2 07-17-2015 11:56 AM
CNG tank explodes while owner fills up Mike Lounge 3 06-05-2014 05:06 PM
Go ahead and get on my case again ssesc93 1992-1999 15 08-31-2005 02:04 PM
Help again and again pgault 1992-1999 8 03-15-2004 02:45 PM
94 Bonneville with the SES light on again off again... JasoNeon 1992-1999 5 12-30-2003 10:05 PM


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 Off
Refbacks are Off



All times are GMT -4. The time now is 09:34 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.