Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

Does my car have problems or not?

Thread Tools
 
Search this Thread
 
Old Jan 31, 2007 | 08:01 PM
  #1  
csmc711's Avatar
Thread Starter
TECH Enthusiast
iTrader: (4)
 
Joined: Sep 2006
Posts: 526
Likes: 0
From: Northern Virginia
Default Does my car have problems or not?

I had a poly tranny mount on my 6 speed car and it was shaking the hell out of the car. I was getting all kinds of vibrations and sounds, including something from my transmission that has/had me worried. If I revved high up to around 4k and shifted from 3rd to 4th, I het a whirring and growling sound like .......... something spinning loosley on a shaft and vibrating/whirrring.

Now, I finally get under the car and change the poly mount to a rockauto cheapy mount and whala...... ALL sounds and vibrations have seaced!? I still have a slight whining noise sitting at a light, I take it from the input shaft, but, my question is, should I be be worried now or not since all the noises I previously heard are gone?
Reply
Old Jan 31, 2007 | 08:09 PM
  #2  
TheBlurLS1's Avatar
That's what she said...
iTrader: (8)
 
Joined: Mar 2004
Posts: 7,954
Likes: 2
From: Nederland Texas
Default

I wouldn't be worried at all. The poly trans mounts do cause some interior noise problems......



...but the real men keep 'em!
Reply
Old Jan 31, 2007 | 08:51 PM
  #3  
csmc711's Avatar
Thread Starter
TECH Enthusiast
iTrader: (4)
 
Joined: Sep 2006
Posts: 526
Likes: 0
From: Northern Virginia
Default

Personly, I would keep it, but, I would never get a woman in there as it was, and, if I did, I think it would be the last time too. Unfortionalty, I am a little partial to pu tang, and, I ordered three mounts in case it goes out sooner than expected.
Reply
Old Jan 31, 2007 | 09:19 PM
  #4  
TheBlurLS1's Avatar
That's what she said...
iTrader: (8)
 
Joined: Mar 2004
Posts: 7,954
Likes: 2
From: Nederland Texas
Default

If she can't handle the rumble in my car, she's definatly not going to live through the one she gets later.

I may put a stocker back on after I get a body mount TQ arm, just to see how much better it is. My shift **** used to go crazy from the TQ arm lifting the trans.
Reply
Old Jan 31, 2007 | 09:22 PM
  #5  
Sneakyws6's Avatar
On the tree
 
Joined: May 2004
Posts: 643
Likes: 0
Default

My poly does this too, but it is better than th thump, thump, thump the regular mount causes under WOT shifts.
Reply
Old Jan 31, 2007 | 09:23 PM
  #6  
FullCollapse's Avatar
Teching In
 
Joined: Jul 2005
Posts: 38
Likes: 0
From: SE PA
Default

Originally Posted by TheBlurLS1
I may put a stocker back on after I get a body mount TQ arm, just to see how much better it is. My shift **** used to go crazy from the TQ arm lifting the trans.
My friend's V6 bird had that problem. We thought it was hilarious, that thing must've jumped up 4-6 inches.
Reply
Old Feb 1, 2007 | 09:45 AM
  #7  
csmc711's Avatar
Thread Starter
TECH Enthusiast
iTrader: (4)
 
Joined: Sep 2006
Posts: 526
Likes: 0
From: Northern Virginia
Default

You ever have a disk grinder disk, or, dremel disk for that matter, come loose and vibrate? You get that wobbly whirly growly sound until it spins down????? Thats what I was getting with the poly, never mind the highway driveshaft vibrations lol, which is what has me a little worried and dissapeared when I went back to rubber mount. I just dont know if that is a normal thing people with poly mounts have, or, if it was an early sign of transmisson doom. Does not matter since I am going auto, but, if its on its way out, I would rather pull the trans in one peice now than two later. If its normal, then it would be nice to know just for a PSA and I will enjoy the 6 speed with peice of mind
Reply
Old Feb 1, 2007 | 02:06 PM
  #8  
TheBlurLS1's Avatar
That's what she said...
iTrader: (8)
 
Joined: Mar 2004
Posts: 7,954
Likes: 2
From: Nederland Texas
Default

That sounds like the pilot bearing is going out (or toast) by the way you describe it. I changed my clutch May 05 and there was nothing but DUST where the pilot bearing used to be.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Feb 1, 2007 | 10:50 PM
  #9  
L67toLS1's Avatar
Staging Lane
iTrader: (4)
 
Joined: Dec 2006
Posts: 99
Likes: 0
From: Grand Prairie, Texas
Default

Mine sounds similar to an exhaust leak since putting the poly mount in, but it only started after a few days, it's really loud and gets faster/louder with rpms, I'm wondering if slapping the solid poly mount on there finally made the motor mounts crap out?

James
Reply
Old Feb 1, 2007 | 11:16 PM
  #10  
csmc711's Avatar
Thread Starter
TECH Enthusiast
iTrader: (4)
 
Joined: Sep 2006
Posts: 526
Likes: 0
From: Northern Virginia
Default

shouldnt weaken the motor mounts, is that what they say? I would think that the tranny not being able to move would keep the motor itself from moving also?
Reply
Old Feb 2, 2007 | 10:18 AM
  #11  
L67toLS1's Avatar
Staging Lane
iTrader: (4)
 
Joined: Dec 2006
Posts: 99
Likes: 0
From: Grand Prairie, Texas
Default

It's kind of got me freaked out, I don't know if there's something wrong with the tranny or the motor, it just sounds like something slapping with the rpms. But I just changed the flywheel/pp/clutch and it's still making the noise, the tranny fluid looked perfect, so I'm not thinking it's that. I doubt it's the motor, I'll just have to find a lift and get it back in the air and take a look I guess, I might go back to a stock trans mount and see if that makes a difference. Cruising at 70 you can't really make out the noise btw, mostly when accelerating.
James
Reply
Old Feb 2, 2007 | 10:26 AM
  #12  
Brian2006's Avatar
TECH Senior Member
iTrader: (42)
 
Joined: Dec 2004
Posts: 5,063
Likes: 0
From: Tomball/Nacogdoches TX
Default

You have no problems at all as said above. Poly mounts usually decrease the movement of the motor but increase the movement of everything else.
Reply
Old Feb 2, 2007 | 10:40 AM
  #13  
csmc711's Avatar
Thread Starter
TECH Enthusiast
iTrader: (4)
 
Joined: Sep 2006
Posts: 526
Likes: 0
From: Northern Virginia
Default

Originally Posted by L67toLS1
It's kind of got me freaked out, I don't know if there's something wrong with the tranny or the motor, it just sounds like something slapping with the rpms. But I just changed the flywheel/pp/clutch and it's still making the noise, the tranny fluid looked perfect, so I'm not thinking it's that. I doubt it's the motor, I'll just have to find a lift and get it back in the air and take a look I guess, I might go back to a stock trans mount and see if that makes a difference. Cruising at 70 you can't really make out the noise btw, mostly when accelerating.
James

Maybe you have a engine/manifold leak? That can make a popping/slapping/ticking sound too.
Reply




All times are GMT -5. The time now is 12:18 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE