C6 Tech/Performance LS2, LS3, LS7, LS9 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

trouble downshifting

Thread Tools
 
Search this Thread
 
Old Oct 23, 2011 | 10:07 PM
  #1  
semaj's Avatar
semaj
Thread Starter
Heel & Toe
10 Year Member
 
Joined: Sep 2011
Posts: 17
Likes: 0
Default trouble downshifting

I've had this car about 3 months now. It is an 06 with @ 60,000 miles. I have trouble downshifting most of the time it will just not go into gear without me letting off the clutch and fully engaging the clutch again. Is this normal on this car? I've always had a manual tranny and never have had to do this before. Didn't know whether or not to be concerned or not. But its kinda annoying.
Reply
Old Oct 23, 2011 | 10:30 PM
  #2  
EDinPA's Avatar
EDinPA
Le Mans Master
 
Joined: Aug 2009
Posts: 5,437
Likes: 4
From: Bucks Co. / outside Philadelphia PA
Default

http://forums.corvetteforum.com/c6-c...al-issues.html
Reply
Old Oct 23, 2011 | 10:49 PM
  #3  
semaj's Avatar
semaj
Thread Starter
Heel & Toe
10 Year Member
 
Joined: Sep 2011
Posts: 17
Likes: 0
Default

Thanks. Good info here. I'm not sure this is what's wrong but I'll start here and hope for the best.
Reply
Old Oct 24, 2011 | 04:38 PM
  #4  
Rick@RKT Performance's Avatar
Rick@RKT Performance
Supporting Vendor
15 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Apr 2011
Posts: 3,332
Likes: 194
From: Frederick Maryland
St. Jude Donor '08-'09-'10-'11-'12, '14-'15-'16-'17-'18
Default

Originally Posted by semaj
I've had this car about 3 months now. It is an 06 with @ 60,000 miles. I have trouble downshifting most of the time it will just not go into gear without me letting off the clutch and fully engaging the clutch again. Is this normal on this car? I've always had a manual tranny and never have had to do this before. Didn't know whether or not to be concerned or not. But its kinda annoying.
It definately sounds like hydraulic issue. Try flushing the fluid first to see if that helps.
__________________
Reply
Old Oct 24, 2011 | 08:46 PM
  #5  
semaj's Avatar
semaj
Thread Starter
Heel & Toe
10 Year Member
 
Joined: Sep 2011
Posts: 17
Likes: 0
Default

Thanks for your help. I'm going to work on it this weekend.
Reply
Old Oct 25, 2011 | 06:59 PM
  #6  
SUB VETTE's Avatar
SUB VETTE
SUBVETTE
Supporting Lifetime Gold
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2006
Posts: 3,841
Likes: 93
From: San Diego CA
Default

The bushings between the shift box and it's torque tube mount are known to tear and break down with age, allowing the shift box to move which can also hamper shifting. Replacing them will firm up the box again. There are also bushings that the shifter rod passes through in the box itself for its fore and aft movement. If they are torn the rod movement will be sloppy and affect shifts. If those bushing are shot you have to buy a new box.

If the clutch fluid isn't the fix, then look at these things.
Reply
Old Oct 25, 2011 | 09:27 PM
  #7  
semaj's Avatar
semaj
Thread Starter
Heel & Toe
10 Year Member
 
Joined: Sep 2011
Posts: 17
Likes: 0
Default

I took a look at the fluid this afternoon. Couldn't really tell anything, just looked black. So I'm just supposed to siphon out the old fluid and fill it up with new fluid?
Reply
Old Oct 26, 2011 | 01:07 PM
  #8  
SUB VETTE's Avatar
SUB VETTE
SUBVETTE
Supporting Lifetime Gold
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2006
Posts: 3,841
Likes: 93
From: San Diego CA
Default

Originally Posted by semaj
I took a look at the fluid this afternoon. Couldn't really tell anything, just looked black. So I'm just supposed to siphon out the old fluid and fill it up with new fluid?
You got it. Then look at it a few days later after you have driven it more and it will probably be dirty again. Repeat the sequence until it stays clean. It probably took about six flushes for me before it started remaining clear for an extended period of time. I now look at it weekly and when it starts changing color I replace it (I probably change it now about at 3 month intervals).
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-1

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-2

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-3

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-4

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-5

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-6

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
story-7

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
story-8

5 MOST and 5 LEAST Popular Corvette Model Years in History!

 Joe Kucinski
story-9

2027 Corvette Buyer's Guide: Everything You Need to Know!

 Joe Kucinski
Old Oct 27, 2011 | 08:51 PM
  #9  
semaj's Avatar
semaj
Thread Starter
Heel & Toe
10 Year Member
 
Joined: Sep 2011
Posts: 17
Likes: 0
Default

How difficult of a job is the bushing/ box fix? Is it done from underneath the car?
Reply
Old Oct 27, 2011 | 09:33 PM
  #10  
EDinPA's Avatar
EDinPA
Le Mans Master
 
Joined: Aug 2009
Posts: 5,437
Likes: 4
From: Bucks Co. / outside Philadelphia PA
Default

Inside, just remove some trim.
Reply

Get notified of new replies

To trouble downshifting





All times are GMT -4. The time now is 06:55 PM.

story-0
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-1
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-2
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-3
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-4
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-5
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-6
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-7
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-8
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-9
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE