Fourth Gear Replacement?

AZDANNO04

MEMBER
2008 CHEVROLET COBALT
2.2L
4 CYL
2WD
MANUAL
136,878 MILES

I am replacing my slave cylinder and figured I check to see if I needed to replace the fourth gear since I haven’t been to get into fourth gear. It just keeps grinding but after three or four times if I get it a certain angle it will catch, but I know one night I was trying to get it in fourth gear when I heard a loud noise and it felt like I may have chipped a tooth or more on that gear. If you can help me how to get to the fourth gear if that's what I need to replace or I was told the synchro something?

6 Replies

KEN L

MASTER CERTIFIED MECHANIC
47,643 POSTS

Sure, here is a video that shows how to get the transmission out and I have included the transmission rebuild diagrams in the images below:

https://youtu.be/6N6b5F2ChyE

Check out the images (below). Let us know what happens and please upload pictures or videos of the problem so we can see what's going on.

Images (Click to make bigger)

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Saturday, May 6th, 2023 AT 12:14 PM

AZDANNO04

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283 POSTS

When I loosened the axle out on the driver’s side I captured over four quarts of transmission fluid.

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Saturday, May 13th, 2023 AT 4:56 PM

KEN L

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47,643 POSTS

Good job, you don't want that to run out all over the floor.

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Monday, May 15th, 2023 AT 9:47 AM

AZDANNO04

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283 POSTS

Is there any other steps to proceed to the gears I was told that every gear has a syncro? Right now I am at the flywheel.

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Monday, May 15th, 2023 AT 12:29 PM

AZDANNO04

MEMBER
283 POSTS

Question about the quantity of fluid in the transmission? I thought it took less than 2quarts to top off the fluid. I just captured over 4 quarts when I removed the driver side axle.