Striker

iTrader: (1)

Hey guys,

Im curious to see what the trend is around here when it comes to broken and fixed trannies.

Id like to start a poll to see how long it took(mileage) before your unit failed and had to be replaced/repaired. It seems to me that the typical failure occurs between 30-50,000 miles. *This is going by the light reading i've done here every now and then.

Thanks and please vote!

06MonteSS

didn't vote - cuz I haven't had to repair or replace mine yet... and it's still strong as ever, runs like new... haven't had any issues with it...

and I'm just about at 69,000 miles....




and I don't baby it either... I get on it all the time... whenever I have enough room in front of me, I'm on it...

and have left my fair share of dual burn-outs on many a road/driveway too...

impala06ss

Looks like you are only polling cars that have failed already, mine hasn't failed yet either, 50k.

BuffaloSS

iTrader: (3)

You need to add "suspect it to fail soon"...cuz that's where my vote would be placed. Every once in a while it will clunk when first accelerating, and the highway shifts are getting super sloppy. It likes to stay in 3rd a lot, and I need to play takeaway with the gas pedal to get OD to engage at times.

Are these symptoms of the Valve Body failing? What's the typical cost to get this fixed/replaced before the whole thing blows?

EDIT: ~46,000mi

beznich

Mine is still good - so far . 25K

tokay57

mine has 21,000 miles and seems fine, however, mine tends to short shift from 2nd to 3rd at wot. Is that normal?

CenTexSS

iTrader: (2)

If you're in drive, it should shift right around 90mph into 3rd gear at WOT. If you put it in manual mode in 2, it'll go to right at 100mph in 2nd gear.

Striker

iTrader: (1)

Im curious to know. My old man has a gxp that he drives back and forth to work, 95% highway driving.

impala06ss

I've noticed that when DOD engages, the transmission disengages and re-engages to smooth out the transition, you can see it on the tach. Anyone else notice that? Also, if you touch the gas under certain circumstances while the DOD is engaging, it will hard shift.

LOL... "suspect it to fail soon"...option....LOL

Honey Badger

My GTP (Same tranny, car was putting out a little more power than a GXP GP) was starting to go at 70k. It'll be gone in the next 5k.

JC05GXP

Mine is still running fine also 43kmi(knocks on wood)

Hey Miranda, I see you joined over here now. Tons o' knowledge here.

StealthV8

iTrader: (1)

I've got 92000kms and just got the trans oil and filter changed, other than that its all good. And i've had the temps up buy 225-240 so many times i lost count, no burnt oil or anything

LS4_SS

I'm at 70k now and mine is starting to slip in the cold and going up hills from a dead stop. I'm pretty sure it is valve body, but it is still nuts.


this transmission sucked in my 240 hp GTP, so it's a good thing that GM decided to put it in a car with 60 more hp.

TiredGXP

iTrader: (2)

84,000 km and counting - no problems yet.

steveman0018

i think GM weakness is the tranny. My dad has the b-body 96 impala, blown tranny at 100000 miles, he then had a 99 tahoe, tranny started slipping at 80000. I had an 01 grand prix gt, tranny started going around 90000 miles. my step dad has an 05 GXP, tranny replaced at 45000 miles..

Overall, My family has had bad luck with GM trannys.. The only one that lasted was an 91 caprice classic and it had 170,000 miles on it when he traded it in and we pulled a boat. No tranny problems at all..

LS4_SS

my 95 monte calo Z34 went at 80k
my 01 gtp went at 75k
and my 06 Impala SS is going at 70k

Striker

iTrader: (1)

My old man is looking at replacing his oil in it very soon. He wants to know whats the best fluid out there to use or should he just go with OEM fluid?

IAGXP

iTrader: (1)

I have 67k on my 06 GXP and just had the fluid changed and had a cooler installed. The existing fluid wasn't burnt but it seems to be shifting better with the new fluid.

Striker

iTrader: (1)

So what fluid do you guys recomend? Also for those that have installed a cooler, did you notice a drop in the trans temparature?

Mgpeagle

iTrader: (6)

I replaced mine at 64 - 65 thousand miles. My trans. went bad at 48 thousand miles but I nursed it until the 64 thousand mile range.

It had a scortched 2nd gear drum, bad clutches, and a clogged valve body. The new one seems to get really hot so I am sure i'll be changing it again sometime. Oh, and this is driving like a grandpa and all that still went bad. These transmissions suck in the V-8's!

-Mike