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Transmission Question

 
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overlordspock
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PostPosted: Sat Aug 27, 2011 10:40 am    Post subject:  Transmission Question Reply with quote

I checked the tranny fluid on the wife's '05 LS. The fluid is pitch black. The transmission still shifts perfectly. She tells me she's never notice anything abnormal about it and, when I drive it, it seems to shift like new. Car has about 85,000 miles on it. Should I be preparing myself for some transmission pain?

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Albert2kls
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PostPosted: Sat Aug 27, 2011 10:47 am    Post subject:   Reply with quote

I would atleast change the filter and then add about 7 qts of new fluid. On my wifes Galant LS after 55K I noticed a shutter and took it in and had the fluid flushed, been fine ever since. That was at about 105K, the first flush was about 50K. I know the factory recomends it at 30K intervals. I would not recomend a flush after that long but a new filter should be ok. Mabe even some Lucas conditioner also.

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billy101
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PostPosted: Sat Aug 27, 2011 11:37 am    Post subject:   Reply with quote

My fluid was pitch black and was original after 115k miles. I dropped the pan and changed the filter, along with the addition of a shift kit. Anyways, dropped the pan and the fluid was so old it came out the viscosity of water! Closed it back up with a new filter, and filled with 6 1/2 quarts of dex III and a bottle of lucas tranny fix (thick ass stuff). That was over 3k miles ago and the car still shifts great. I'm at 118,480miles now.

If you don't know the maintenance history of the transmission, before it get's too late I'd drop pan, new filter and refill. Don't flush these transmissions, bad things happen after flushes.

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overlordspock
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PostPosted: Sat Aug 27, 2011 11:58 am    Post subject:   Reply with quote

I have neither the knowledge, nor the right space to drop the pan. So, it'll probably have to go in to a mechanic to have this done. Just looking for info. Obviously, want the transmission to last, but with the problems these transmissions have, you never know...

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billy101
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PostPosted: Sat Aug 27, 2011 1:19 pm    Post subject:   Reply with quote

overlordspock wrote:
I have neither the knowledge, nor the right space to drop the pan. So, it'll probably have to go in to a mechanic to have this done. Just looking for info. Obviously, want the transmission to last, but with the problems these transmissions have, you never know...


The only problem I was having was a slight shudder on a cold start once in the morning when starting from a stop. Other than that the transmission shifted perfectly. If you do bring it to a shop make sure they do NOT flush the transmission, regardless of what they "recommend". Do you know any maintenance history of the transmission?

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2001 Impala LS 3.8 - 118,510 miles. 9/2/2011. RIP - 11/12/2011
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Albert2kls
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PostPosted: Sat Aug 27, 2011 1:59 pm    Post subject:   Reply with quote

overlordspock wrote:
I have neither the knowledge, nor the right space to drop the pan. So, it'll probably have to go in to a mechanic to have this done. Just looking for info. Obviously, want the transmission to last, but with the problems these transmissions have, you never know...


I agree with Billy, dont flush. You have an 05 so many of the problems have been fixed from what I read and my own post. BBE has mentioned after 03 that many of the weak links have been fixed. So you have a good tranny just maintain it. Tell your mechanic that you want the pan dropped and the filter changed. I know on my 2000 LS the gasket is reusable and much better then the aftermarket so he should keep your gasket and when filling the tranny to put 1 bottle of Lucas transmission Conditioner. You should be good for another 30K and do the same process.

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bbengineer
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PostPosted: Sat Aug 27, 2011 3:32 pm    Post subject:   Reply with quote

All of the 00-05 trannys suffer from the same problems... the only thing they fixed in 03 was the hardened 4th shaft... the tranny is still very weak and plagued with problems

Nobody does a flush on the tranny... the machine they use simply does a complete fluid swap using the tranny's own fluid pump. It doesn't flush anything

The reason you have issues after using a machine to swap fluid on an older trans is the machine swaps ALL of the fluid and the new detergents in the fluid cause the clutch plates to come apart. Dropping the pan and only swapping half the fluid introduces far less detergents and SOMETIMES doesn't cause issues (other times it does)

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Albert2kls
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PostPosted: Sat Aug 27, 2011 6:40 pm    Post subject:   Reply with quote

I thought I read somewhere that the some electronics were updated or upgraded Confused Ok, well there you have it, I have always went with if it has not been done in atleast 60K don't flush it. That's how I decide.

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billy101
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PostPosted: Sat Aug 27, 2011 6:43 pm    Post subject:   Reply with quote

Albert2kls wrote:
I thought I read somewhere that the some electronics were updated or upgraded Confused Ok, well there you have it, I have always went with if it has not been done in atleast 60K don't flush it. That's how I decide.


I did mine at 115k for the first time! haha I was so nervous, but now I am so happy

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2002 Impala LS 3.8 -121,749 miles 11/13/2011
2001 Impala LS 3.8 - 118,510 miles. 9/2/2011. RIP - 11/12/2011
2010 Malibu LTZ 3.6 - 16,014miles. 8/20/2011.
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Albert2kls
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PostPosted: Sat Aug 27, 2011 9:59 pm    Post subject:   Reply with quote

billy101 wrote:
Albert2kls wrote:
I thought I read somewhere that the some electronics were updated or upgraded Confused Ok, well there you have it, I have always went with if it has not been done in atleast 60K don't flush it. That's how I decide.


I did mine at 115k for the first time! haha I was so nervous, but now I am so happy


Its hit or miss, nobody likes to be hit but it does happen.

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PostPosted: Sat Aug 27, 2011 10:08 pm    Post subject:   Reply with quote

Albert2kls wrote:
billy101 wrote:
Albert2kls wrote:
I thought I read somewhere that the some electronics were updated or upgraded Confused Ok, well there you have it, I have always went with if it has not been done in atleast 60K don't flush it. That's how I decide.


I did mine at 115k for the first time! haha I was so nervous, but now I am so happy


Its hit or miss, nobody likes to be hit but it does happen.


oh for sure

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2001 Impala LS 3.8 - 118,510 miles. 9/2/2011. RIP - 11/12/2011
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overlordspock
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PostPosted: Sun Aug 28, 2011 12:06 pm    Post subject:   Reply with quote

billy101 wrote:
overlordspock wrote:
I have neither the knowledge, nor the right space to drop the pan. So, it'll probably have to go in to a mechanic to have this done. Just looking for info. Obviously, want the transmission to last, but with the problems these transmissions have, you never know...


If you do bring it to a shop make sure they do NOT flush the transmission, regardless of what they "recommend". Do you know any maintenance history of the transmission?


I don't know the full history. We've had the car for 50k miles and have had no issues with the tranny at all. I know my mechanic looked at it around 55,000 miles, and said things looked fine, so the black fluid has really occurred over the last 35,000 miles.

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2008 Impala SS - Precision Red, Magnaflow, Cold Air Inductions CAI, Overkill Tune, Front/Rear STBs w/ Don Rome Brackets SOLD
2005 Impala LS - Summit White, Front/Rear STBs w/ Don Rome Brackets, BBE Monte SS Cluster SOLD
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PostPosted: Sun Aug 28, 2011 7:30 pm    Post subject:   Reply with quote

I've changed filter and fluid twice in the life of the car, both times the fluid was black. Id like to know what causes this also, b/c Im not exactly financially prepared for a tranny job/replacement.

I just hit 78K last week.

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Albert2kls
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PostPosted: Sun Aug 28, 2011 8:11 pm    Post subject:   Reply with quote

Grape wrote:
I've changed filter and fluid twice in the life of the car, both times the fluid was black. Id like to know what causes this also, b/c Im not exactly financially prepared for a tranny job/replacement.

I just hit 78K last week.


The Fluid turns black because of the clutches, they are like brake pads and as they wear the clutch material comes off. Also the fluid breaks down over time. Thats the basic explanation, Im sure the will be a better more exact reason posted soon.

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