Xue Zheng

So I purchased a type s with a manual trans, and the 3rd gear was grinding and it feels just a worn out blocker ring(people called it synchro) in 3rd gear , since I couldn’t find any where to get the parts for that to rebuild trany , maybe I should ask you guys for help. ether same transmission on other honda or acura exactly the same and i can search off that or a source that can get just sets of blocker rings( I tried order from acura and they only selling a complete set of synchronizer)

WDPanda

Have you tried changing the transmission oil?

Xue Zheng

not yet, because if i’m rebuilding the trany why i waste the fluid since im not driving it ( i have 17 civic for daily) but thinking about to do a fluid change

TheSauceBoss

How many miles are on it? A fluid change may or may not affect your problem, depending on how severe it is.

zeta

iTrader: (1)

Not sure you are going to find just the 'synchros', use the attached TSB 08-018 as a baseline to what Acura did when people had their 3rd gear issue addressed by the dealer. It looks like you need a 3rd gear set P/N 23444-RDE-315 being that the issue may be a faulty 3rd gear synchro and/or 3-4 shift sleeve. Amazon has it for $206.15

horseshoez

iTrader: (2)

Why bother rebuilding the transmission when ACDelco Synchromesh Friction Modified will most likely cure your issue?

Xue Zheng

i thought the friction modified is doing with the LSD diff ? so if i use the good fluid i will get away the grind?

Xue Zheng

i brought the car in 141k miles, and i look over the carfax previous owner only had engine fluid changed

Jackass

We are saying it "might" resolve your issue and is worth a try before tearing apart your transmission. There is always the chance it won't....but overall, most of us have had good luck with the fluid swap.

horseshoez

iTrader: (2)

My story is similar to many-many here on this forum...

I bought my 2006 6MT in 2017; at the time the car had ~114,000 on the clock and had a pretty severe third gear grind on many shifts, and on other shifts, the transmission wouldn't fully go into third gear, and if I didn't correctly sense the less than full engagement, the transmission would pop out of gear when I let out the clutch. Quite literally, the instant after I put 2.3 quarts of ACDelco Synchromesh Friction Modifed in the transmission, both issues were solved. I have since driven the car nearly 50,000 miles and have not had a single third gear issue dating back to May of 2017.

Xue Zheng

yea worth a try, did you brought it online or brought from acura honda , is that the oem fluids

horseshoez

iTrader: (2)

No, Acura does not sell ACDelco products, they are a company tied to General Motors, in fact, the product used to be called General Motors Synchromesh Friction Modified.

You can by it from the likes of Amazon and Summit Racing (I've purchased from both).

https://smile.amazon.com/Genuine-GM-...2VW/ref=sr_1_2

Xue Zheng

i realize the 07-08 tl type s has the LSD (idk if the regular manual tl has the LSD or not) does the LSD makes any different? different fluid?

justnspace

iTrader: (1)

all manual transmissions, regardless of year, have the LSD. Automatics do not have the LSD.

horseshoez

iTrader: (2)

Nope, the Accord V6 6MT models do not have LSD and the Acura V6 6MT models do; same MTF either way.

Long story short, stop debating what to do and use ACDelco Synchromesh Friction Modified; you'll be glad you did.

Xue Zheng

so does the base tl and tl s use the same 6 speed trans? if something goes wrong or i want to build a trans on the side

horseshoez

iTrader: (2)

The physical transmission in all 6MT 3rd gen TLs is exactly the same, that said, the bellhousing is a bit different because the 2004-2006 J32A3 and the 2007-2008 J35A8 have a different flange on the back of the block for mounting the transmission.

truonghthe

Some how the availability of the MT is rare because when AccordFlex blew the 3rd gear its took him a while to source another used trans.

1black_seven

iTrader: (2)

I had my transmission rebuilt, the 3rd gear grind is still there. Synchromesh fluid will fix your issue.

Xue Zheng

thanks for the heads up , and i will use the fluid to fix it

Xue Zheng

I have a 2007 TL type s 6speed manual and the 3rd 4th 5th gear are grinding, so I pick up a 04-06 manual TL transmission since i heard people say you can swap the bell housing to make it fit. now Im stuck on how to swap the bell housing and rebuild the old transmission from the type s. hit me up if you have any idea how to rebuild and rebuild kits for it

horseshoez

iTrader: (2)

You've been posting about your transmission issues for a while now and we've been telling you to put ACDelco Synchromesh Friction Modified MTF in the transmission for just as long. As far as I can tell you never tried the new MTF; before you pull the tranny, try the ACDelco fluid.

Xue Zheng

yes i did try the fluid you said , but it didn’t work

Xue Zheng

So after I take the old tran out maybe I rebuild it and sell it , and the “new” tran see if it’s bad too and take the old rebuild tran in, I cannot think what can I do now

truonghthe

keep the old transmission for now just in case you need spare part.

thoiboi

Merged with existing thread

Xue Zheng

any idea how to take the input shaft? because the inputshaft hits the snout, im stuck

johnboy1313

Figured I'd add to the mix. I manual swapped a 2000 Odyssey with a 3.2S and 6MT from a 2003 CL-S. After getting it together, I found that fourth gear has the slightest grind when shifting from 3-4 or 5-4. It goes into gear, it doesn't pop out...ever. With that said, the GM synchromesh fluid didn't help at all. It made absolutely no difference. I've been driving it for three years now. I usually just skip 4th altogether.

I'm currently researching to rebuild it myself.

horseshoez

iTrader: (2)

@johnboy1313, do you know for a fact your issue isn't the shift linkage and not the transmission?

johnboy1313

No I don’t. When shifting to 4th, you can feel the teeth on the gear spinning through the shift knob. If you hold the clutch in and slowly shift to 4, it won’t grind at all. If you clutch and immediately shift slowly into 4th you can feel the gear slow down as it’s spinning. I don’t have any other issues with it. Is there a way to confirm that it’s not the linkage?

horseshoez

iTrader: (2)

I'm not sure how you would go about confirming the linkage issue, but I have heard from a few other posters where linkage issues cause the types of issues you're describing. Given 3rd and 4th are on the same gate, and given 4th gear doesn't typically present an issue with these transmissions, and finally, given the Synchromesh didn't help, my brain was just bouncing around looking for another potential cause.

Acura TL Builder

Ill bet you’ve got the LSD.