Slight Rattling from transmission - MustangForums.com

Go Back  MustangForums.com > Ford Mustang Tech > 4.6L (1996-2004 Modular) Mustang
Reload this Page >

Slight Rattling from transmission

4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

Slight Rattling from transmission

Reply

 
 
 
Old 07-06-2011, 10:53 AM
  #1  
s94658
Thread Starter
 
Join Date: Jun 2011
Location: NY
Posts: 27
Default Slight Rattling from transmission

I just bought an 03 GT and the car is mint and everythig works great but I did however notice a slight rattling. It sounds like an exhaust shield rattling very slightly but I got under the car and it is coming from the tranny.

It only rattles when the car is cold and then as it starts to warm up it only will do it when the clutch pedal is engaged, then when it is completely warmed up stops rattling. Any Ideas?? Bad throw out bearing maybe?
s94658 is offline  
Reply With Quote
Old 07-06-2011, 11:42 AM
  #2  
Dan04COBRA
Super Moderator
 
Join Date: Jul 2003
Location:
Posts: 14,915
Default

Have you looked underneath and tried banging on things to replicate the sound?

What does the car have for a catback? Magnaflow & SLP catbacks are known to have weird vibrations & rattles at the exhaust tips.
Dan04COBRA is offline  
Reply With Quote
Old 07-06-2011, 12:06 PM
  #3  
s94658
Thread Starter
 
Join Date: Jun 2011
Location: NY
Posts: 27
Default

Originally Posted by Dan04COBRA View Post
Have you looked underneath and tried banging on things to replicate the sound?

What does the car have for a catback? Magnaflow & SLP catbacks are known to have weird vibrations & rattles at the exhaust tips.
Yes I have gotten under it and tried to replicate it. Couldnt find it, and sounded like coming from trans. I just bought the car and it is completely stock performance wise so stock exhaust.
s94658 is offline  
Reply With Quote
Old 07-06-2011, 02:17 PM
  #4  
4v_mach1
 
4v_mach1's Avatar
 
Join Date: Jun 2011
Location: Cali
Posts: 26
Default

bad throw out bearing/possibly bad input shaft bearing... if it even exist in our transmission. My mach 1 has the same issue..even after replacing the clutch with a new TOB after 3,000 miles the sound is back. Almost sounds like the fork in the transmission is loose. At first i thought my car had a rod knock during cold start, but as soon as i pressed the clutch pedal the sound went away.
4v_mach1 is offline  
Reply With Quote
Old 07-07-2011, 03:12 AM
  #5  
s94658
Thread Starter
 
Join Date: Jun 2011
Location: NY
Posts: 27
Default

Originally Posted by 4v_mach1 View Post
bad throw out bearing/possibly bad input shaft bearing... if it even exist in our transmission. My mach 1 has the same issue..even after replacing the clutch with a new TOB after 3,000 miles the sound is back. Almost sounds like the fork in the transmission is loose. At first i thought my car had a rod knock during cold start, but as soon as i pressed the clutch pedal the sound went away.
See now I have the opposite problem. It only really rattles when I engage the clutch. Once the car has been running for a while it seems to go away completely.
s94658 is offline  
Reply With Quote
Old 07-07-2011, 02:12 PM
  #6  
s94658
Thread Starter
 
Join Date: Jun 2011
Location: NY
Posts: 27
Default

Anyone know what is causing this? Throw out bearing? Pilot bearing? Transmission fork?

It is a metal rattle, thought it was just a loose exhaust shield the first time I heard it.
s94658 is offline  
Reply With Quote
Old 07-07-2011, 07:42 PM
  #7  
dominant1
3rd Gear Member
 
dominant1's Avatar
 
Join Date: Jul 2009
Location: Delaware
Posts: 659
Default

I just bought a 2004 gt yesterday and i noticed a noise, but it sounds like a pulley noise or a loose heat shield rattle. I do have undersized pulleys but i only hear it briefly under load right after i shift from 1st gear to 2d and then in third, then i don't hear it at all in fourth gear...Any ideas?....i'm going to look under it tomorrow.
dominant1 is offline  
Reply With Quote
Old 07-08-2011, 06:26 AM
  #8  
dominant1
3rd Gear Member
 
dominant1's Avatar
 
Join Date: Jul 2009
Location: Delaware
Posts: 659
Default

I decided to look at where my small leak is coming from and i found its from the tranny to drive shaft seal and i think the noise maybe a result of the tranny being a little low on fluid. i'm gonna take it to a pro to look at Monday.

Last edited by dominant1; 07-08-2011 at 11:09 AM.
dominant1 is offline  
Reply With Quote
Old 07-12-2011, 09:43 AM
  #9  
dominant1
3rd Gear Member
 
dominant1's Avatar
 
Join Date: Jul 2009
Location: Delaware
Posts: 659
Default

Had a pro look at the problem, he said my leak was coming from the shifter, he wouldn't work on it because it's a steeda tri ax aftermarket. I drove it home took the shifter out and resealed it to the tranny with silicone. There was no sealant residue on the shifter from when originally installed. The previous owner said he did seal it up! Anyway the noise I was hearing isn't showing up as much, I will continue to keep an eye on it!

Last edited by dominant1; 07-12-2011 at 09:49 AM.
dominant1 is offline  
Reply With Quote
Reply
 
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Dokilar
4.6L (1996-2004 Modular) Mustang
15
10-16-2015 08:13 PM
UrS4
S197 Handling Section
1
09-30-2015 10:13 AM
wraith777
General Tech
1
09-28-2015 10:49 AM
lmurf60
4.6L (1996-2004 Modular) Mustang
1
09-24-2015 10:07 PM

Forum Jump

Thread Tools
Search this Thread
Advertising
Featured Sponsors
Vendor Directory