Knocking Trans - 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 07-22-2007, 10:09 PM   #1
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Apr 2006
Location: Mcduffie County, Ga
Posts: 13
Thanks: 0
Thanked 0 Times in 0 Posts
SSEi Ei O is on a distinguished road
Default Knocking Trans

First I have to say thanks to Popatim for advising me to start my own topic. I havent been on for a while but have sonme probs I need the powers that be to help me sort. Cyric 78 had a problem with his tranny making a knocking noise. Well I have the same problem. Well it doesn't knock like it used to.... it doesn't move at all unless I shift it to 1st gear but it has reverse. It also slips in first and second gear when accellerating. At highway speeds it'* like nothing is wrong. My estimates for a full rebuile has been between 14 and 28 hundred. Is there a possibility that seafoam might work along with a shift kit for me? Or just fork out the money for the rebuild?
SSEi Ei O is offline   Reply With Quote
Old 07-22-2007, 10:24 PM   #2
PopaDopaDo
True Car Nut
 
popatim's Avatar
 
Join Date: Jan 2005
Location: NY
Posts: 4,957
Thanks: 0
Thanked 0 Times in 0 Posts
popatim is on a distinguished road
Default

Please be patient as several members are in transit to the National West Coast Bonneville Fest (WCBF).
popatim is offline   Reply With Quote
Old 07-22-2007, 11:22 PM   #3
Senior Member
True Car Nut
 
Join Date: Jul 2004
Location: Grand Rapids, Mi
Posts: 5,656
Thanks: 0
Thanked 0 Times in 0 Posts
Archon is on a distinguished road
Default

Have you checked the fluid level and condition? For just slip, that could solve or lessen the problem, and the SeaFoam TransTune can clean up varnished parts. The clunking generally indicates one of the hard parts in the transmission or differential is bad, however. Trying a fluid and filter change would be a lot less expensive, and will give you the opportunity to check for any metal shavings, or other nasties, in the tranny pan. Does yours also clunk at idle?
Archon is offline   Reply With Quote
Old 07-22-2007, 11:36 PM   #4
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Apr 2006
Location: Mcduffie County, Ga
Posts: 13
Thanks: 0
Thanked 0 Times in 0 Posts
SSEi Ei O is on a distinguished road
Default Knocking Trans

Thanks Archon yes I checked the fluid and it is clear looking not burnt smelling and it does knock at idle. It made the noise for about a month but drove well so I chalked it up a loose torque converter bolts. but then it went away and the slipping and shifting issues started. I've only owned the car 1 1/2 years for for me it'* no question it'* staying around.
SSEi Ei O is offline   Reply With Quote
Old 07-22-2007, 11:40 PM   #5
Senior Member
True Car Nut
 
Join Date: Jan 2005
Posts: 3,295
Thanks: 0
Thanked 0 Times in 0 Posts
MyLittleBlackBird is on a distinguished road
Default

I'd be willing to wager that the seals on the input assembly are shot. I can't speak for the clunking, but the slipping and lack of going into gear leads me to believe what I do on the seals. If you want a band aid, when you do the fluid change and the pan ISN'T filled with a pile of aluminum and steel, put a bottle of lucas trans fix in.
MyLittleBlackBird is offline   Reply With Quote
Old 07-22-2007, 11:55 PM   #6
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Apr 2006
Location: Mcduffie County, Ga
Posts: 13
Thanks: 0
Thanked 0 Times in 0 Posts
SSEi Ei O is on a distinguished road
Default Knocking Trans

Thanks for the insight and I definitely will take that into consideration. As for your name... Thats Thunderbird right? I previously owned a 90 SC and boy do I miss that RWD though comparably stock to stock they're about the same.
SSEi Ei O is offline   Reply With Quote
Old 07-24-2007, 02:10 AM   #7
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Apr 2006
Location: Mcduffie County, Ga
Posts: 13
Thanks: 0
Thanked 0 Times in 0 Posts
SSEi Ei O is on a distinguished road
Default

Bump
SSEi Ei O is offline   Reply With Quote
Old 07-24-2007, 08:59 AM   #8
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

Quote:
Originally Posted by SSEi Ei O
Bump
yep...that'* the noise your trans is making.

What'* the bump for? Have you followed the advice? Do you have more issues? We aren't quite at the mind reading stage yet...we need more input from you.

My first thoughts are .. your trans is on its way down the big highway of life. Maybe look for a JY replacement that has a nice GM Ceritified sticker on it... the pure number of them in my local yards tells me that transmissions from 92-95 were replaced quite a lot.
BillBoost37 is offline   Reply With Quote
Old 07-24-2007, 09:43 AM   #9
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Apr 2006
Location: Mcduffie County, Ga
Posts: 13
Thanks: 0
Thanked 0 Times in 0 Posts
SSEi Ei O is on a distinguished road
Default Knocking Trans (bump)

Good morning Bill. First and foremost Yesterday I added a bottle of Seafoam and it really did eliminate the slippage problem, It goes right into gear with no hesitation. As for the knocking sound ,it hasn't come back but I wouldn't want to drive the car for extended lengths. Planning a fluid change today and possibly a drive to a local trans shop to have the diff diagnosed.I wasn't attempting to have anyone read my mind For I really hadn't tried much, as for the bump I just wanted to bring my topic back up tp the front page
SSEi Ei O is offline   Reply With Quote
Old 07-24-2007, 10:35 AM   #10
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

Glad to hear it...

On the bump.. I wasn't sure what was going on because we hadn't seen any new info from you and a few replies.. usually when something is back to the top..there'* info or something needed.
BillBoost37 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
[b]Engine recently replaced...hearing a knocking noise!!![/b Andamo 1992-1999 10 09-07-2004 09:00 AM
Loud Knocking noise.... 619Bonneville97 1992-1999 5 08-15-2004 03:37 PM
Hesitation & some knocking when under load Infrared 2000-2005 5 07-31-2004 12:40 PM
knocking noise 1993SSEi 1992-1999 5 05-06-2004 09:04 AM
Elves knocking? bmsgaffer86 1992-1999 2 12-23-2003 09:35 AM


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 04:59 PM.


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.