Tech / General Engine Is your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!
Sponsored by:
Sponsored by: CARiD

Clunking sound in driveshaft when i accelerate?

Thread Tools
 
Search this Thread
 
Old Aug 10, 2001 | 11:43 PM
  #1  
89Firebird Formula350's Avatar
Thread Starter
Member
 
Joined: Aug 2001
Posts: 135
Likes: 0
From: St Louis
Clunking sound in driveshaft when i accelerate?

Whenever I get on the pedal and start to accelerate, there is a clunk noise, which seems to be in the drive shaft. Do you know what this could be? Thanks in advance!
Reply
Old Aug 11, 2001 | 12:05 AM
  #2  
Guest
Guest
 
Posts: n/a
Sounds like a busted tranny mount. Relatively simple fix. Find someone who carries the rectangular shaped one if you want a rubber mount, it used to be listed under mid 80's Monte Carlos, its a much stronger mount and bolts right in.

[This message has been edited by madmax (edited August 10, 2001).]
Reply
Old Aug 11, 2001 | 12:33 AM
  #3  
Gta-Paladin's Avatar
Senior Member
 
Joined: Oct 2000
Posts: 840
Likes: 0
From: Esquimalt BC
yes i'd prescribe a broken tranny mount aswell... just get a poly one... I replaced mine with a stock one and it's broken again...
Reply
Old Aug 11, 2001 | 12:36 AM
  #4  
89Firebird Formula350's Avatar
Thread Starter
Member
 
Joined: Aug 2001
Posts: 135
Likes: 0
From: St Louis
Thanks MadMax that helped me kinda find out what was wrong. My car is an 89 Firebird Formula 350, is that what you think is wrong?
Thanks!
Reply
Old Aug 11, 2001 | 12:50 AM
  #5  
TransAm4u2race's Avatar
Junior Member
 
Joined: Apr 2001
Posts: 42
Likes: 0
From: New Orleans, LA
check the torque arm bushing too. Mine went bad in my 84 TA Does it sometimes make a clunking sound when u put it in gear? if so id check the torque arm bushing
Reply
Old Aug 11, 2001 | 12:59 AM
  #6  
MattW's Avatar
Supreme Member
iTrader: (1)
 
Joined: May 2001
Posts: 1,638
Likes: 0
From: Greenwood, Indiana
Car: 1984 Trans Am
Engine: Vortec 355
Transmission: TH-700R4
Axle/Gears: GM Axles and GM 3.73
U-joint maybe??
Reply
Old Aug 11, 2001 | 02:17 AM
  #7  
84 t/a 5.0's Avatar
Member
 
Joined: Jan 2001
Posts: 385
Likes: 0
From: Arizona
Car: 1984 Trans Am H.O.
Engine: 350
Transmission: 700-R4
Axle/Gears: stock 3.73
my 84 t/a does the same da** thing, but i dont know what it is. could it be the torque arm?
Reply
Old Aug 11, 2001 | 08:00 AM
  #8  
El Guapo's Avatar
Member
 
Joined: Nov 2000
Posts: 279
Likes: 0
From: SC
Order of probability:
1) Tranny mount
2) Tranny mount
3) Tranny mount
4) Torque arm bushing
5) Voices in your head
6) Voices from outerspace
7) Voices in my head
8) Your car's Voice

The clunking sounds when you accelerate is a classic for the tranny mount being busted. Regardless of the year and motor of the vehicle. My old 89 2.8 made that sound. My friends 77 Chevy pickup made that sound. My advice would be to get the car in the air, pull the mount and see if its busted. If it is borrow someones vehicle and get one. then replace it.

I would recommend that you go buy the part, but seeing as how youre not taking anybodys advice, check it for yourself then go get the part.

Clayton
Reply
Old Aug 11, 2001 | 10:06 AM
  #9  
89Firebird Formula350's Avatar
Thread Starter
Member
 
Joined: Aug 2001
Posts: 135
Likes: 0
From: St Louis
Thanks everybody, that really helped me out! I really appreciate your info! Thanks again!
Reply
Old Aug 11, 2001 | 06:08 PM
  #10  
West Coast GTA Man's Avatar
Senior Member
 
Joined: Jun 2001
Posts: 562
Likes: 0
From: New Port Richey, Florida, USA
Car: 1989 Pontiac GTA Hardtop.
Engine: ZZ4 - 350
Transmission: Garbage
I had a similar problem with my car, I thought it was coming from the rear end or the rear of the drive shaft. I had the fluid in my Posi Rear change, and it went away. The Mechanic told me that when the fluid breaks down in these rears, it will do that. He said it was important to put the posi additives back in the rear. It was a pretty bad noise. I thought the friggin rear was on it's way out for sure, but it is perfect now, and has been for about 2 months.
Later
Mike

------------------
Check out My Car Pics http://albums.photo.epson.com/j/Albu...667&a=13599419

Gran Turismo Americano "The Ultimate Firebird"
Smokin 1989 GTA- Bone stock except for exhaust. (no catalytic-stainless pipe into Flowmaster 2 chamber) & AC Delco Rapid Fire Plugs
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
RedLeader289
Electronics
6
Sep 23, 2015 06:50 AM
Racerx974
Tech / General Engine
7
Sep 19, 2015 10:16 AM
amcnellis
TBI
6
Sep 16, 2015 04:16 PM
ULTM8Z
DIY PROM
1
Sep 16, 2015 09:15 AM
Ragtop Man
Transmissions and Drivetrain
2
Sep 12, 2015 12:23 AM




All times are GMT -5. The time now is 05:05 PM.