7th and 8th gen transmission service procedure - Page 3 - Chevy Impala Forums
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post #31 of (permalink) Old 12-16-2012
OEM LOL

 
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I wouldn't start preventive maintenance at 240k lol

If it aint broke at 240k dont fix it.


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post #32 of (permalink) Old 12-17-2012 Thread Starter
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If you don't know the maintenance history, check the fluid. If its dark and stinky, it's probably been a long time, and you're best off leaving it alone. But if its just a little brown, or pink or red, go ahead and service it, since it has probably been done recently enough.

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post #33 of (permalink) Old 12-24-2012
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Quote:
Originally Posted by kingnutin View Post
If you don't know the maintenance history, check the fluid. If its dark and stinky, it's probably been a long time, and you're best off leaving it alone. But if its just a little brown, or pink or red, go ahead and service it, since it has probably been done recently enough.
Hey King, I've got a 2007 3.5 (bought new in Nov. 2006) with 63,000 on it. Whats your 2 cents about whether or not to change the tranny fluid in this case? Cars shifts just fine and the fluid has just a slight brown to it. Does age make a lot of difference? That is, 63000 in 6 years vs same mileage in three years. It's been very well maintained otherwise but want to make sure I'm doing what I can to keep the tranny going strong. I didn't realize they have a reputation for short life until recently

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post #34 of (permalink) Old 12-25-2012 Thread Starter
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63k isn't too bad, and time doesn't make much difference. I would go ahead and change it.

1978 Caprice Classic Landau
350 2-bolt, stock 4bbl
Stock rebuilt TH350
Edelbrock performer cam + intake
Dual 2 1/2" Flowmaster exhuast (waiting to be installed)
Edelbrock IAS Classic shocks
95 9C1 3.08 posi
4 wheel disc brakes!
16x8 American Racing Baja's with 225/60/16 Pirelli P4's

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post #35 of (permalink) Old 01-01-2013
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A flush every 30-50k and filter change every 100k for any GM is good rule of thumb. Also, do not use any additives in GM tranny's. Alot of people don't as it is kinda pricey but, your car and wallet will thank you later.




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post #36 of (permalink) Old 01-07-2013
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Thanks a bunch Kingnutin, but I do have a follow up question.

I have a 03 Impala LS 3800 and 58,xxx miles stock with no apparent tranny cooler. I plan to change the tranny fluid and filter this summer with Dexron VI (under your recommendation). My Haynes book says that my tranny fluid copacity is between 7.4 and 10 quarts.

My question is, if I follow your directions (thank you) will I be replacing all of the fluid or just a portion, if just a portion? What percent might that be?
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post #37 of (permalink) Old 01-07-2013 Thread Starter
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It replaces part of the fluid, 7-7 1/2 quarts is enough for this procedure, 10 quarts is the entire capacity. So you are changing about 75% of the fluid.

1978 Caprice Classic Landau
350 2-bolt, stock 4bbl
Stock rebuilt TH350
Edelbrock performer cam + intake
Dual 2 1/2" Flowmaster exhuast (waiting to be installed)
Edelbrock IAS Classic shocks
95 9C1 3.08 posi
4 wheel disc brakes!
16x8 American Racing Baja's with 225/60/16 Pirelli P4's

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post #38 of (permalink) Old 01-09-2013
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Thanx, I think I'll change both the fluid and filter this summer. And then again at 100K. I am a proactive type, a little effort now can save big $$ later.
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post #39 of (permalink) Old 04-03-2013
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As always, awesome writeup, did this last weekend with your help. In case anyone runs into a snag with the seal... I ended up getting the seal out pretty easily by gentling pulling down from the upper top lip of the seal with a pair of 90 degree bent bird-beak needle nose pliers.
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post #40 of (permalink) Old 04-03-2013 Thread Starter
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That seal can be a serious pain, many times I have considered just leaving it, but I know what can happen...

1978 Caprice Classic Landau
350 2-bolt, stock 4bbl
Stock rebuilt TH350
Edelbrock performer cam + intake
Dual 2 1/2" Flowmaster exhuast (waiting to be installed)
Edelbrock IAS Classic shocks
95 9C1 3.08 posi
4 wheel disc brakes!
16x8 American Racing Baja's with 225/60/16 Pirelli P4's

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post #41 of (permalink) Old 04-19-2013
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I'm going to change mine out, its over due as I'm nearing 65K already, the dealer recommends to change trans fluid and filter at 50K.

They're charging only $169 to change it, I can get the fluids and filter for about $100, so I'm still thinking about doing it myself, or not.

If I do I will take shots and post them for others to see, as to contribute to your write up, which is very detailed already and easy to follow, even without pictures, good job.

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post #42 of (permalink) Old 06-17-2013
DallaSS 214
 
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I wanted to change the trans filter on mine (128K and i don't know if they ever changed it before) but after seeing some posts, i guess it's best to leave it alone


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post #43 of (permalink) Old 06-17-2013
LIFETIME HILLBILLY
 
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No, change it but don't flush




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post #44 of (permalink) Old 06-19-2013
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I just had mine done at Mr. Transmission at 70 000 kms. The fluid still looked pretty good, but I figured the car is 7 years old, so it was time for a change.

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post #45 of (permalink) Old 06-19-2013 Thread Starter
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That's about 44k miles, good time to change it anyway.

1978 Caprice Classic Landau
350 2-bolt, stock 4bbl
Stock rebuilt TH350
Edelbrock performer cam + intake
Dual 2 1/2" Flowmaster exhuast (waiting to be installed)
Edelbrock IAS Classic shocks
95 9C1 3.08 posi
4 wheel disc brakes!
16x8 American Racing Baja's with 225/60/16 Pirelli P4's

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