Started By
Message

re: Mechanics of the OT, I need your help with my transmission

Posted on 5/24/25 at 12:54 pm to
Posted by NeilArmstrong1969
Member since Jul 2024
128 posts
Posted on 5/24/25 at 12:54 pm to
It doesn’t have an odor, it’s brown
Posted by bbvdd
Memphis, TN
Member since Jun 2009
27998 posts
Posted on 5/24/25 at 1:03 pm to
GM knows they have a shite product yet refuse to address it.

It’s their MO for the last 10-15 yrs.

Why I will not be buying one in the foreseeable future.
Posted by CenlaLowell
Alexandria, la
Member since Apr 2016
1217 posts
Posted on 5/24/25 at 2:14 pm to
My friend your about to rebuild that transmission or get rid of the car entirely. There's no way around this
Posted by SA4LSU
AZ
Member since Sep 2005
4758 posts
Posted on 5/24/25 at 2:15 pm to
quote:

You should be asking them to look at your motor mounts. It ain't the transmission.


This place never disappoints, you press the gas down and vehicle does not move you have bad motor mounts, geez. OP has a bad trans, depending on their desire to keep vehicle and financial means, probably best to replace with re man and keep going. That’s typical of that vehicle with those miles.
Posted by calcotron
Member since Nov 2007
10043 posts
Posted on 5/24/25 at 4:28 pm to
quote:

quote:
You should be asking them to look at your motor mounts. It ain't the transmission.


This place never disappoints, you press the gas down and vehicle does not move you have bad motor mounts, geez. OP has a bad trans, depending on their desire to keep vehicle and financial means, probably best to replace with re man and keep going. That’s typical of that vehicle with those miles.



LOL, I'll own that - definitely one of my best. I clearly did not read the OP, in my defense it was late and there were drinks. I have had to replace motor mounts on the last 2 GMCs and it did clearly bump beforehand. But obviously this is not that.
Posted by UptownJoeBrown
Baton Rouge
Member since Jul 2024
6411 posts
Posted on 5/24/25 at 5:08 pm to
quote:

LOL, I'll own that - definitely one of my best. I clearly did not read the OP, in my defense it was late and there were drinks.


It was so dumb I refused to comment on it.
Posted by Obtuse1
Westside Bodymore Yo
Member since Sep 2016
29964 posts
Posted on 5/24/25 at 5:11 pm to
quote:

It doesn’t have an odor, it’s brown


The best way to visually analyze tranny fluid if to put a drop on a papertowel. Brown fluid is an issue but given the issues you reported it is not surprising that it has been overheated.

It won't help the OP (at least with this tranny) but since it is a tranny thread I will toss in my 2 cents.

It is my opinion that in general transmission fluid services are too far apart based on the scheduled maintenance charts. For most cars it is a simple (though sometimes dirty) job that is not very expensive. I suggest 30k drain and fill and 60k filter on the outside. I like to exchange between 25 and 33% of transmission fluid every oil change. If the transmission has a drain plug in the pan a simple drain will usually remove an amount of fluid in that range. If the pan doesn't have a drain plug I use an oil extractor (pic below) to remove the oil through the dip stick hole (do it with the fluid warm). If you have a sealed transmission then it is a different story.

One last note, a lot of transmissions are very particular about the fluid formulation and as a result I always use OE fluid. You can normally get it on Amazon for most makes cheaper than the parts counter and saves a trip.

PM on a transmission is easy to defer and easy to forget about. Linking partial fluid replacement with oil changes prevents this and is cheap insurance IMO.



This post was edited on 5/24/25 at 5:52 pm
Posted by TigerHornII
Member since Feb 2021
1154 posts
Posted on 5/24/25 at 6:34 pm to
quote:

GM knows they have a shite product yet refuse to address it.



While I have my issues with GM, this one went 164k with NO service. I don't think you can fairly classify that as a "shite product".
Posted by Dallaswho
Texas
Member since Dec 2023
3347 posts
Posted on 5/24/25 at 7:23 pm to
quote:

165k on a 2017 Chevy is outstanding this day and age be happy you got that much

Are you joking? I’ve never heard of anyone over 30 burning up a transmission. Drive it responsibly and make sure it has fluid and it goes 500k.
Wearing out synchros on a manual is a different story as long as it’s 2nd gear.
This post was edited on 5/24/25 at 7:25 pm
Posted by LSU Neil
Springfield
Member since Feb 2007
3378 posts
Posted on 5/24/25 at 10:06 pm to
You have no idea what you are talking about. Chevy and Ford both have crap transmissions starting in 2017. It is a known issue. In fact here you go:

A major class action lawsuit against General Motors (GM) is ongoing, alleging that certain vehicles equipped with 8L90 or 8L45 eight-speed automatic transmissions, manufactured between 2015 and March 1, 2019, have defective transmissions that cause issues like shuddering, jerking, and hard shifts. The lawsuit covers a wide range of GM vehicles, including Chevrolet, Cadillac, and GMC models.
Key aspects of the lawsuit:
Allegations:
Plaintiffs claim that GM knowingly sold vehicles with defective transmissions that cause shuddering or shaking in higher gears and hesitation, lurching, or jerking in lower gears.
Affected Vehicles:
The lawsuit covers vehicles equipped with the GM 8L90 or 8L45 eight-speed automatic transmissions, manufactured between 2015 and March 1, 2019.
This post was edited on 5/24/25 at 10:08 pm
Posted by NeilArmstrong1969
Member since Jul 2024
128 posts
Posted on 5/27/25 at 7:55 pm to
Well baws, you guys were right, it needs a new transmission. I’ll be eating ramen every meal for the next few months
Posted by LSU Neil
Springfield
Member since Feb 2007
3378 posts
Posted on 5/27/25 at 8:04 pm to
Just find an aftermarket transmission shop. Not a dealer. There is a guy near Walker that does them for 4000 cash and turns it in 4-5 days. Uses higher quality parts. Two ppl I work with had him do theirs.
Posted by UptownJoeBrown
Baton Rouge
Member since Jul 2024
6411 posts
Posted on 5/27/25 at 8:10 pm to
quote:

There is a guy near Walker that does them for 4000 cash and turns it in 4-5 days. Uses higher quality parts. Two ppl I work with had him do theirs.


Useless post unless you give him the name.
Posted by UptownJoeBrown
Baton Rouge
Member since Jul 2024
6411 posts
Posted on 5/27/25 at 8:11 pm to
That all they said? No explanation as to why?
Posted by NeilArmstrong1969
Member since Jul 2024
128 posts
Posted on 5/27/25 at 11:12 pm to
The guy said it was bad and that it would have to be replaced, $5500 is what he quoted me and it comes with a 2 year warranty. It’s Budget Transmission off Airline, a good friend referred me there, he’s has had 2 transmissions in different vehicles rebuilt there and has nothing but great things to say about the place
Posted by partsman103
Member since Sep 2008
8602 posts
Posted on 5/28/25 at 6:00 am to

Trans price $ 3298.77 with exchange + tax and installation.
We have 57 in stock and purchase by the truckload.
Posted by CHEDBALLZ
South Central LA
Member since Dec 2009
23046 posts
Posted on 5/28/25 at 6:06 am to
Pay whatever it cost to get it towed to Earls Transmission in Raceland.
Posted by UptownJoeBrown
Baton Rouge
Member since Jul 2024
6411 posts
Posted on 5/28/25 at 6:07 am to
quote:

The guy said it was bad and that it would have to be replaced


Well that certainly explains why.
Posted by Shankapotamous
Member since Dec 2014
325 posts
Posted on 5/28/25 at 8:14 am to
You aren't buying a new transmission either way. A GM dealership would be selling you a GM reman or something similar like a Jasper reman.

Don't do shudder fix additive for torque shudder in GM transmission, have them replace the filter and go with synthetic transmission fluid instead of dextron IV. That's the problem is the regular transmission fluid gets too hot and degrades, the synthetic doesn't.
Posted by TigerHornII
Member since Feb 2021
1154 posts
Posted on 5/28/25 at 9:05 am to
quote:

Don't do shudder fix additive for torque shudder in GM transmission, have them replace the filter and go with synthetic transmission fluid instead of dextron IV. That's the problem is the regular transmission fluid gets too hot and degrades, the synthetic doesn't.


There ain't no "t" in Dexron.

Just about all current Dexron fluids are synthetic. The last one you could buy that wasn't was Dexron III.
first pageprev pagePage 3 of 4Next pagelast page

Back to top
logoFollow TigerDroppings for LSU Football News
Follow us on X, Facebook and Instagram to get the latest updates on LSU Football and Recruiting.

FacebookXInstagram