Blew my trans on my Trailblazer SS today

[SMRTSS1]

Got on Westbound (its actually north) 290 at Lake St in Addison, had the happy pedal MAYBE halfway down while going up the ramp and BOOM, loud grinding noise and no forward gears and reverse didn't come up until I sat for a while. The shitty 4L70E trans in the TBSS is known for grenading itself but I'm only at 40,200 miles, out of warranty and I had the trans fluid flushed and filled at 35,000 and I've got a trans cooler on the damn thing. I don't beat on it, don't race and I have no need to take it to the track. Why the fuck would they put such a shit trans into such a good vehicle and not cover it for failures that hundreds of people are having? FFFFFFFFUUUUUUUUUUUUUCCCCCCCCCCCCCKKKKKKKKKKKKKKKKKK I can't afford this shit right now.

It's sitting at a place called M&N Auto Service in Addison because I'd rather not have it at a stealership, they sent the tow truck and they do trans work. Anyone know anything about this place?

I'm thinking I might just get a new better trans and have them put it in but that depends on whats wrong and how much money (that I don't have) it's going to cost.

Click to read more...

 

[EmersonHart13]

Lots of vehicles don't have a trans than can handle the motor...

Sorry dude, that BLOWS!

 

[Bru]

Sucks to hear man. Have you owned it since new?

 

[IDAFC21]

this brings me back to my wrx days. ahh memories

 

[vroom]

Mine went out at 25k miles, don't feel bad.

I still have my warranty though.

 

[Riski]

Should of got an extended warrenty.....That sucks, if you have to put a new one in, might as well be a better one....

 

[bikrboy128]

get a good built trans and never have to worry about it.

 

[smug]

I pray that the trans in the GXP blows up before the warrany it up. The trans in the GXP is just as shitty as the TBSS trans.

 

[syP]

No, the 4L70e/TBSS combo is MUCH worse than the 4T65ehd/GXP combo

 

[SMRTSS1]

4L70E is the worst idea in the history of worst ideas. I'm thinking I'll just get a small loan and get a built tranny done. I tow a camper maybe twice a year and if I gotta pay for it I might as well get something that'll last at least til I pay off the loan. The trans is still cheaper than a warranty that barely covers anything anyway. I just can't believe that a car with 40K on it that I honestly don't beat on would blow a trans. I've got a friend from high school that's an engineer for GM, I'm gonna tell him to find the guy that put that piece of shit trans into what is otherwise an awesome SUV and punch him in the nuts.

 

[Bob Kazamakis]

Why wouldn't they use a 4l80e? Those are hella strong

 

[Yaj Yak]

yeah get a built one. do it yourself if you are halfway mechanically inclined... its relatively easy. also- while you are doing it, put a different torque converter in it and make it a rocketship.

 

[Eagle]

Sux that it died on you. KJ's idea carries merit btw... TBSS+TQCONV=ROCKETSHIP

 

[SMRTSS1]

I don't have the time or the tools to do it (I'm way overloaded trying to make a buck) but I'll probably just get a new built one put in. I'm not sure about what torque converter though since I tow a 3800lbs pop up camper a few times a year.

 

[UWISHU1]

man I feel your pain, I blew my trans 2 weeks ago and rebuilding it was NO fun.

 

[modern-muscle]

Let us know if we can help you out with your built trans. We have lots of great options for you.

 

[ktraver97ss]

I pray that the trans in the GXP blows up before the warrany it up. The trans in the GXP is just as shitty as the TBSS trans.

Why not just make it blow? i know certain people, who know certain people, who can arrange things of this nature.....

 

[EmersonHart13]

Yeah, I have the same fear with my GXP, but then again when they blow under warranty you are just getting a rebuilt version of the same crap. I would almost rather just put the money out and go to http://www.tripleedgeperformance.com/ and get a good trans.

 

[SMRTSS1]

Mechanics thinking it's the front dif and/or the transfer case and from reading a few posts on the Trailblazer forum I'm on he might be right. Regardless it's not gonna be cheap and I don't understand why it's a rather common problem and GM does nothing about it. If it's the dif and T-case I'm looking at about $5000. FML!!!

 

[Bob Kazamakis]

You should add "not" to the beginning of your plate.


But really that blows. Why $5k? Seems very steep to me

 

[KaMaSuTrA]

You case on front diff/t-case issue is the same case I have against GM when it comes to the CTS-V1 differentials. Granted they did build a "stronger" diff case for the GEN II/III GeTrag diffs however, that didn't solve the problem until they came out with the current CTS-V2 and its wheel hop stopping staggered axles. Why couldn't they just step up and fix the issues or better yet engineer them better especially when you have like 400 crank hp to deal with and an IRS built on rubber bands and religious faith?!

 

[OffshoreDrilling]

This is the reason I have a built trans, no worries! When I bought my truck, it had already had the trans replaced by 20k miles lol!!

The 4l70 is not a bad transmission. It was just a poor choice for the combination of weight and power the TBSS has.

 

[SMRTSS1]

You should add "not" to the beginning of your plate.


But really that blows. Why $5k? Seems very steep to me

Nice attempt at humor assbag but you FAIL!

I don't beat on it and it's not from abuse, nor did I design a shit trans and driveline components around a great motor and platform. The $5K would be if I need the front dif and transfer case re-done, and thats to start. Plus I'm not doing what GM did and put low grade crap into my truck.

Anyway.....So far from what the Tech told me (these guys are pretty quick and have called me twice today giving me updates) the splines on the shaft going into the front diff are wasted and it took all the neighboring parts along with it when it failed, which from some of the threads I read on the Trailblazer forum I'm on this isn't that strange a problem. I can't remember if he said from the axle or the transfer case (I've been drinking a little heavely since yesterday for some reason?). Looking like the preliminary guestimate is about $2,000 and it'll prolly take a good week with waiting for parts, hopefully not longer. I've got a friend from high school thats an engineer at GM thats going to look into a few things for me but I doubt the faceless monster that GM is will do anything for me.

 

[Fish]

Id ask Modern Muscle what they can do for you. Why rebuild to factory specs when you can go beyond for the same and not worry about it later.

Ohh, and I say we have a 4L70 VS 4T65E face off to see who is made of more glass.

 

[OffshoreDrilling]

Ohh, and I say we have a 4L70 VS 4T65E face off to see who is made of more glass.

Neither are bad. Its the combination of power/weight that kills them. This is the death of ANY transmission. How many 4t65s live happily in N/A regals and Grand Prixs? Way more than in a GS or GTP