Trans is being rebuilt. Lost 4th gear and shutter.
Trans is being rebuilt. Lost 4th gear and shutter. Driving home on the freeway today, and felt the tran pop in and out of 4th a couple of times real violently.
Once I got off of the freeway, and came to a stop, the trans decided to shutter thru 1st, till it grabbed 2nd. I have been living with 4th gear woes for quite some time now.. The car was still drivable and snappy till I decided to drive like a grandma.
Took the car into the shop so I'll post what they find. (It's Probabaly the valve body)
Forced to spend bucks now, so there goes my heads
Thankfully I bought parts form Tripple edge last year.
I do not blame the shutter or the loss of fourth on my mods. This trans has been a real trooper. 65K with a lot of hard driven miles and over 50 drag strip passes. **** happens, so now it's time to upgrade to my 3400-3800 stall converter with 3.69's.
Once I got off of the freeway, and came to a stop, the trans decided to shutter thru 1st, till it grabbed 2nd. I have been living with 4th gear woes for quite some time now.. The car was still drivable and snappy till I decided to drive like a grandma.
Took the car into the shop so I'll post what they find. (It's Probabaly the valve body)
Forced to spend bucks now, so there goes my heads
Thankfully I bought parts form Tripple edge last year. I do not blame the shutter or the loss of fourth on my mods. This trans has been a real trooper. 65K with a lot of hard driven miles and over 50 drag strip passes. **** happens, so now it's time to upgrade to my 3400-3800 stall converter with 3.69's.
Last edited by DavidGXP; Oct 6, 2011 at 12:37 AM.
Staging Lane
Joined: Sep 2011
Posts: 87
Likes: 0
Mine is at the dealership right now with the same issue as yours kind of, I have a 4th gear shutter under a low rpm load, sometimes it will do it in 3rd gear too in manual mode if I can get it to bog down enough.
The service tech said he thinks the torque converted isn't unlocking under those load conditions, but they are going to run some tests on it to see if they can narrow it down.
The service tech said he thinks the torque converted isn't unlocking under those load conditions, but they are going to run some tests on it to see if they can narrow it down.
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Seems like most people lose their converters, burn up a drum/clutch or have valve body issues. So far, I haven't heard of any brakage. I am still convinced that a trans cooler, shift kit and regular fluid changes (25K), will preserve the 4T65E for at least 100K.
?????I will let everyone know what the shop finds. With parts and labor (including what I bought from Dave) I will have spent close to 4200. Ouch!
If I had more time, and if it was still summer, I would have pulled the trans myself. I need this car back on the road ASAP, so I was forced to take in.
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Verdad Gallardo GM f'ed us on the design and execution of these transmissions, and care (or lack thereof) has little impact on whether you're one of the unlucky ones.
Staging Lane
Joined: Sep 2011
Posts: 87
Likes: 0
I agree with the causes, however, the regular fluid changes and trans cooler do nothing to prevent the problems. I know...I changed the trans the trans fluid and added a huge cooler when I bought the car with 30,000 miles on the clock. I never even got to the second fluid change when the trans failed at 53,000. It got new fluid with the rebuild, but it died again at 78,000, right before the next scheduled change. And the addition of a shift kit won't save the seals in the valve body, nor prevent the converter relief valve from trashing your torque converter.
GM f'ed us on the design and execution of these transmissions, and care (or lack thereof) has little impact on whether you're one of the unlucky ones.
GM f'ed us on the design and execution of these transmissions, and care (or lack thereof) has little impact on whether you're one of the unlucky ones.
I just wish GM would recall these things and be done with it.
I agree with you to some degree, all except the trans cooler, those undoubtedly save various parts of the transmission from heat related issues. Sure it is not going to fix manufactures defects or hard part failures, but having 220 degree fluid versus 180 degree fluid can't help.
I just wish GM would recall these things and be done with it.
I just wish GM would recall these things and be done with it.
I guess what I was trying to say was, our 4T65 failures are generally not heat related. I do believe every LS4 owner should add a trans cooler because they do get hot, but our transmissions generally don't last long enough between rebuilds to die from heat problems!
Staging Lane
Joined: Sep 2011
Posts: 87
Likes: 0
I think we're in total agreement here, as I've always installed an external trans cooler whenever I've bought an automatic-equipped vehicle.
I guess what I was trying to say was, our 4T65 failures are generally not heat related. I do believe every LS4 owner should add a trans cooler because they do get hot, but our transmissions generally don't last long enough between rebuilds to die from heat problems!
I guess what I was trying to say was, our 4T65 failures are generally not heat related. I do believe every LS4 owner should add a trans cooler because they do get hot, but our transmissions generally don't last long enough between rebuilds to die from heat problems!
Oh... **** my life!
The PI converter wasn't machined properly, so the bevel is cutting the turbin shaft
O- ring.
PI is going to build another converter and ship it out ASAP.
I was supposed to get the car back tomorrow morning. I sure hope this new converter works or else it's back to stock!
The PI converter wasn't machined properly, so the bevel is cutting the turbin shaft
O- ring.
PI is going to build another converter and ship it out ASAP.
I was supposed to get the car back tomorrow morning. I sure hope this new converter works or else it's back to stock!
So I went down to the shop and the car looks great in pieces. The trans looks like a Monster and should perform like one too.
The builder said the channel plate TCC pressure relief valve was lose and everything else looked really good. Freaking less then 50.00 part was causing problems lol.. I guess I had a lot of slop in the 2nd clutch assembly too. The shop also thinks the TC was going out but without the trans throwing codes, its hard to say without cutting it open.
The builder said the channel plate TCC pressure relief valve was lose and everything else looked really good. Freaking less then 50.00 part was causing problems lol.. I guess I had a lot of slop in the 2nd clutch assembly too. The shop also thinks the TC was going out but without the trans throwing codes, its hard to say without cutting it open.
TECH Enthusiast
Joined: Oct 2008
Posts: 593
Likes: 0
From: Rochester, NY
WoW. When mine goes, I'm having the car towed to a junk yard, and taking $4k to the dealership. Sorry dude.
You have a lot more invested in your car than I do in mine so I see how that wasn't an option.
You have a lot more invested in your car than I do in mine so I see how that wasn't an option.
