Need help diagnosing noise and vibration - Honda-Tech - Honda Forum Discussion

Transmission & Drivetrain Gearboxes, Differentials, Clutches

Need help diagnosing noise and vibration

Thread Tools Search this Thread
Old 03-05-2017, 01:14 PM   #1
Honda-Tech Member
Thread Starter
2x0's Avatar
Join Date: Oct 2011
Location: Rochester, MN
Posts: 536
Default Need help diagnosing noise and vibration

Drove my CRX around today for the first time since fixing the tune. There are some noises happening that I am sure are tranny or drive train related, as well as a vibration.

The engine runs fine, and it shifts thru the gears normally otherwise. This is an LS cable trans, everything stock except stage 5 sprung clutch. Newer oem axles.

This is mated to a GSR engine, car has a traction bar and solid engine mount on the front side.

I just changed the trans fluid with new Acura MTF hoping it would help, but it didnt. The old fluid was dark, but did not indicate any internal damage.

1.) When sitting and idling, if I release the clutch pedal there is a very audible growl almost like the sound of straight cut gears. Goes away when clutch pedal is pressed, not as noticable when revving.

2.) When driving, the gear type noise described above gets louder, especially accelerating in first and second, until the engine noise drowns it out.

3.) When decelerating in gear, a loud clicking/clacking noise happens. It seems constant with the speed of the car, frequency maybe 4-5 times per second at lower speeds. It only happens when engine braking. If I touch the throttle or push in the clutch or put it in neutral, the sound goes away.

4.) In third gear only that I've noticed so far, under acceleration load the car will shudder pretty hard. Doesn't happen every time , but often. Felt like clutch chatter, but it doesn't happen if I step on it in 4th or 5th so I'm not sure that's it. The clutch still grabs hard.

Where should I start? I can't afford a shop to tear it apart and start replacing things. From the research I've done, each of these issues have their own probable causes. Axles, differential, throwout bearing and input bearing to name a few.

Should I not drive the car until I figure out what's causing this, to avoid risking more damage?

2x0 is offline   Reply With Quote
Old 03-06-2017, 08:26 AM   #2
Honda-Tech Member
Thread Starter
2x0's Avatar
Join Date: Oct 2011
Location: Rochester, MN
Posts: 536
Default Re: Need help diagnosing noise and vibration

Willing to look at any suggestions, I am a newb when it comes to transmission issues. Here is a condensed version for anyone willing to throw out most likely causes.

1.) Noise at idle when clutch pedal released, goes away when pedal is pressed

2.) Clacking noise when decelerating in gear. Goes away if clutch pedal is pressed or car is in neutral.

3.) Intermittent shuddering and shaking when accelerating in 3rd gear.
2x0 is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
OH HEY everybody, long time no see... *sigh* girlswrenchtoo Honda Civic (2006 - 2015) 11 07-05-2017 07:59 AM
Rare MT issue in 03 Accord 2.4L SuperFast3000GT Honda Accord & Crosstour (2003 - 2012) 6 06-11-2017 03:20 AM
01 GSR w B20B Chirp and Hesitation ericn727 Acura Integra 1 04-17-2017 06:38 PM
Various Rattle Annihilation Thread 8YourV8 Honda Civic / Del Sol (1992 - 2000) 31 02-19-2017 05:46 PM
98 Cr-V noise help pr1madona Honda Element & CR-V 0 12-03-2016 11:27 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 -8. The time now is 03:34 PM.

  • Ask a Question
    Get answers from community experts
Question Title:
Your question will be posted in: