strange trans noise - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Transmission - Rearend
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 04-30-2006, 04:32 PM
Registered User
 
Join Date: Feb 2006
Location: north east PA
Posts: 8
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
strange trans noise

I recently swapped a non world class Borg warner t5 into my 1984 Monte Carlo ss. I had the transmission looked over and was told that everything is 75% or better. the person who did it is a touch shady...so who knows. It has been working great until the other night.. when i was going around a turn in fifth gear with some power applied i heard a steady crunching/rumbling type noise coming from somewhere in the drive train, i could feel it in the gas pedal as well. the noise was faint..but loud enough that others in the car heard it. i let off the pedal and the noise stopped, and pressed again the noise started again. it only happens when i go around sharp turns under power in both 5th and 4th gear, i haven't tried any other gear. my drive shaft is a tad too long as a result of a mistake either in my measuring or at the shop, maybe only 1/4 inch of play...im not sure if this could have anything to do with the noise. also, i'm running a 350 with around 300 horse power. this is more than the tranny is rated for i believe...and i don't really baby it much. any insight at all would be appreciated. thanks in advance.

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 04-30-2006, 04:44 PM
xntrik's Avatar
Save a horse, Ride a Cowboy.
 
Last photo:
Join Date: Jul 2005
Location: Arkansas
Posts: 5,131
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
Quote:
Originally Posted by Dainleljedal06
I recently swapped a non world class Borg warner t5 into my 1984 Monte Carlo ss. I had the transmission looked over and was told that everything is 75% or better. the person who did it is a touch shady...so who knows. It has been working great until the other night.. when i was going around a turn in fifth gear with some power applied i heard a steady crunching/rumbling type noise coming from somewhere in the drive train, i could feel it in the gas pedal as well. the noise was faint..but loud enough that others in the car heard it. i let off the pedal and the noise stopped, and pressed again the noise started again. it only happens when i go around sharp turns under power in both 5th and 4th gear, i haven't tried any other gear. my drive shaft is a tad too long as a result of a mistake either in my measuring or at the shop, maybe only 1/4 inch of play...im not sure if this could have anything to do with the noise. also, i'm running a 350 with around 300 horse power. this is more than the tranny is rated for i believe...and i don't really baby it much. any insight at all would be appreciated. thanks in advance.

I wouldn't blame the mechanic.

You have a worn out transmission with a too long driveshaft. A load in the car makes the problem noticable.

What rpm are you turning "going around sharp corners" in FIFTH? You could be hearing engine firing pulses through the drive train due to low rpm lugging, or even u-joint angle binding due to load and body roll.

I'll bet you don't have synthetic ATF in the trans either, do you?
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 04-30-2006, 07:51 PM
Registered User
 
Join Date: Feb 2006
Location: north east PA
Posts: 8
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by xntrik
I wouldn't blame the mechanic.

You have a worn out transmission with a too long driveshaft. A load in the car makes the problem noticable.

What rpm are you turning "going around sharp corners" in FIFTH? You could be hearing engine firing pulses through the drive train due to low rpm lugging, or even u-joint angle binding due to load and body roll.

I'll bet you don't have synthetic ATF in the trans either, do you?



about 1500-2000 rpm. i dont think the transmission is worn out, it was gone over, and if it was "worn out" he more than likely would have tried to sell me a new tranny. I do have synthetic fluid the gm stuff, 10 bucks a quart, so thats not the problem. there wasnt a load in the car, just me and my girl friend, body roll isnt too bad, and i'm not sure what you mean by engine firing pulses. the car wasnt lugging tho, just purring along.
Reply With Quote Quick reply to this message

Recent Transmission - Rearend posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Strange rumbling/buzzing noise from 1983 5th Ave 1983lux Engine 1 01-20-2006 11:55 AM
C6 trans noise at idle Cole Transmission - Rearend 2 11-06-2004 02:14 PM
strange noise 72chevy240z Engine 2 09-29-2004 04:36 PM
Strange noise Camaro2Fast4u Engine 2 06-12-2003 02:05 PM
Strange noise in 94 Chev. Beretta Tyrfin Engine 3 01-04-2003 03:23 PM


All times are GMT -6. The time now is 02:53 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.