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Old 11-16-2012, 11:32 AM   #1
G8Firehawk17
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Default If your transmission blew-up...what would you replace it with?

Seriously...3 years and 55k miles and my transmission came apart on me last Friday leaving work. What car manufacturer has that happen these days?

The even better part is that when I had it towed to the closest dealer, they informed me there was a block on the warranty of several components on my car...transmission included. So far no one can tell me why...just that it took effect in June of 2011. I've got an open case with GM customer service to investigate and give me a reason justifying the block before I proceed with anything.

So, the question in the title of the thread stands. What would you replace this with? Also, the sky is not the limit. I'm a new father and priorities are a lot different now, however I can't just walk away from the car. I'm assuming that the GM transmission will be overpriced for what you get and I'm not enthusiastic about buying something that only gave me 55k miles the 1st go around.

I haven't begun collecting cost data yet for alternatives, but I'm also curious about converting this to manual at this point...unless that will be crazy expensive vs. just replacing with another automatic.

Thoughts??
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Old 11-16-2012, 11:40 AM   #2
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Warrantee blocks are usually a bad thing. Prob if you had it in for service and they noticed the supercharger and all SLP's upgrades, they may have silently flagged you. Everyone knows that high horsepower cars are more prone to braking stuff.

You need to question if this is a GM Warrantee issue in the first place. I would think your beef would be with SLP, not GM. Or maybe some combination of both.

Uh, maybe SLP modifications were unauthorized by GM?

Did you call SLP and find out if they'd be willing to act on your behalf in dealing with GM?

I was under the understanding that SLP firehawks carried same warrantees as stock equipped cars, since SLP worked closely with GM on this project and other similar projects over the years. Like the f-body firehawks, for example.

IF NOT, then you're gonna have to see if SLP has any warrantees through them, or even partial help for when you take the car to the speed-shop of your choice to fortify it for the next round. Every little bit counts, as you said, especially since you're a new father now, if they give you some assistance towards getting it fixed, that would be awesome.


Converting to a manual would likely cost ~10k + as the best bolt-on replacement is the GXP transmission and those are somewhat rare. Even then, if you do it "right" and consider a beefier clutch and stronger components where you can, it can get expensive quickly.

If you part out, I'll offer you $500 for the carcass that is left. Just kidding. Good luck man, hope you can get it fixed on the cheap.
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Old 11-16-2012, 11:45 AM   #3
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Dude, if you have all those mods done it shouldn't be on GM's dime. No offense, but YOU blew up your tranny.

These transmissions are very stout from the factory and can take alot....but they have their limits like anything else.

If I were in your shoes and had already invested that much into the car I would look into having a tranny specialist rebuild and strengthen it, if that is not possible then I would try and find a used G8 tranny or even a CTS-V or vette - they're very similar I believe

If SLP did the work I'd be knocking on their door...
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Old 11-16-2012, 12:17 PM   #4
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Let me clear up the same confusion that you (and every dealer that never sold an SLP product) seem to have. This car is sold new at the dealer with all these mods in place from SLP. SLP warrants their parts and any damage caused by their parts for 3-36k. Meanwhile you still carry the same GM bumper-to-bumper and 5-100k drivetrain warranties on the car. I have all kinds of paperwork and manuals outlining this coverage, so no...I DIDN'T blow up my tranny sir.

The block went into effect June 2011 and I bought the car in Nov 2009. The block is shortly after I visited a dealer asking them to look into a rough downshift into 4th gear while I was still under my bumper-to-bumper. This was a chevy dealer that knew nothing about the car and called me saying they couldn't work on it because it had a custom (non factory G8 GT) tune. I tried to explain that it's sold with SLP PCM and TCM and the car comes with a superchips flashpaq and instructions to convert to the factory tune when taking the car to a dealer to allow them the ability to read the car if needed.

I believe when they shared the transmission tune data with GM, they just saw it as something that was done aftermarket and placed the block on the warranty. The crappy thing is that no one told me, so I could deal with it back then.

We'll see how it turns out, but please don't make definitive statements when you don't understand the situation or the facts.
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Old 11-16-2012, 12:49 PM   #5
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What are the mods on the car, and who installed the mods ?
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Old 11-16-2012, 01:07 PM   #7
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The 6L80 A6 is a pretty solid tranny and people on this board have pushed 550+hp on them without issues.

Do you drag race often? Drive over 6500 rpms often?

If I was in your situation I would buy a new from a salvaged G8 on ebay or a junk yard somewhere. Find a reputable transmission place, and be done with it.
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Old 11-16-2012, 01:10 PM   #8
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That dealership probabaly didnt know what the car was and put the block on your car. I would call GM customer service to call that dealership and remove that block. Its going to be tough since they can say anything they want to save face. but get it in writing. I cannot belive that GM or any company will do such thing to their customers.
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Old 11-16-2012, 01:17 PM   #9
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The firehawk is a GM licensed product. Why would he spend his money on something that should be covered under warranty?
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Old 11-16-2012, 01:17 PM   #10
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That's what I said in post #2.... SLP and GM worked together to bring the firehawk to market, as it was sold new as an authorized upgrade package from GM dealerships.

SLP Firehawks have a Maggie, SLP headers and catback (with those awesome trapezoidal tips) and some suspension mods IIRC. They come with custom rims too, but "big brakes" are an optional upgrade, not sure if OP opted for that package.

I would be opening up a case with SLP tied to your VIN number to get everything documented. Write down exactly who you talk to, when, and about what. Convince SLP that they need to approach GM from their side to help you get this resolved. With the dissulution of pontiac, no doubt GM dealership you brought the car to had no clue, and they rightfully followed procedure for modified ECM or TCM tunes, so you can't blame them either.

One of the inherent risks in buying a "non-factory" car with gofast parts. Your car from day one put a lot more stress on the driveline components than any other production G8. Sorry for your loss, but I'd say playing hardball with SLP is your best option here. Good luck.
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Old 11-16-2012, 01:28 PM   #11
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SLP's warranty is only for 3/36k, and the drivetrain is on GM only. Also, the dealer can't initiate the warranty block...only GM can do that. The dealerships are toothless at this point. The warranty has to be un-blocked from GM which is why a case has been opened with GM customer service to research why the block was put into place and the possibility of having it removed.

As I stated in the initial post, the warranty block investigation is a work in progress just to get answers right now. I have been thining of calling SLP just to get any suggestions or in the event they may act as an advocate in getting answers.
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Old 11-16-2012, 01:47 PM   #12
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If you had the superchips tuner you should have loaded it back to stock before taking it to the dealer back in June. Why else would they give it to you?
Good luck on this one. I don't think you will get very far with GM and it is out of the SLP warranty.
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Old 11-16-2012, 01:48 PM   #13
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A 6L80 from Pace is about $1,800 after core charge: ***********************.com/i-7134141-17804130-2009-g8-gt-6l80e-transmission.html

Probably not a bad option if you dont beat on it too much. If you do I would consider a Circle-D built 6L80 for closer to $3k or consider a 4L80 swap.
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Old 11-16-2012, 01:55 PM   #14
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Time for a century trans rebuild. I think they run about 3500 bucks though. I would think it would be ready for anything after they beef it up.
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Old 11-16-2012, 03:25 PM   #15
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Quote:
Originally Posted by Radrace19 View Post
If you had the superchips tuner you should have loaded it back to stock before taking it to the dealer back in June. Why else would they give it to you?
Good luck on this one. I don't think you will get very far with GM and it is out of the SLP warranty.
I think the idea of the Superchips tuner in this case, was only to put the factory tune back, for dealer only purposes, so they'll be able to do pcm related work with GM approved devices. Probably SLP has a tuner lock option for their tunes, so nobody is able to see what they did, i hope this is not the case, and the calibration is wide open, in any case, more likely it was not for the owners to load the factory tune and drive to the dealer. Having the factory tune loaded with a supercharger is not good at all. and i'm sure SLP must have some sort of documentation that describes the procedure.

This case should proceed well with some patience, hopefully. The car came with the mods, and while is out of SLP Warranty, GM should cover the repairs under the 5year/100k miles waranty for engine/trans, it's not like the OP modded his car up like most of us would do, he bought a factory performance package in agreement between SLP and GM. i think the issue at hand, is that along the line, one monkey at the dealer/GM regional rep, didn't know how to document the vehicle as it should, it's the same thing as buying a Roush or Saleen (when it was in existence), Ford would warrant the vehicle, in this case GM should do the same thing.

OP, has GM contacted you to ask for the car documentation where it shows VIN number, SLP/GM agreements and what not ? you might have to engage SLP now, to see if they can also make some phone calls/send documentation etc, more likely this would be a misunderstanding where unfortunately, you are going to spend more time on it than what was needed originally.

Crap it would be interesting to know what SLP did with the trans tune, i wonder if that calibration can be read with HPtuners, If so, i could help pinpoint if there are any obvious issues in the tune, that would lead to a failed trans, although, i'd think if the modifications and tune had GM blessings so people could get the car the way it was, that the tune was certified by somebody in GM, like they'll do with their standard products.

At this point, all you can do is wait and try to move the connections between SLP and GM to speed up the case, if you don't want to wait, i'd think the cheapest alternative would be a used trans with low mileage from a junk yard, perhaps a new trans from the dealer, like MGMGT have suggested, or pay a little bit more and have the thing rebuilt, circle D rebuild is cheaper than Century transmission, if you get it rebuilt, you should consider asking the builder about the clutch packs, and how close to stock they're in thickness, thicker clutches would affect how the incoming/outgoing preset volume pressures are defined in the tune, if they're thicker, you'll have to modify those volumes values in the tune to account for them.

I believe Rick Crawford can help you understand this better, as he has done rebuild in this trans, there isn't a lot to change inside the trans to beef them up, and one of the reasons why most companies doesn't like to work on this trans, aside from the fact that some tuners like to splash their fingers in the tune, thinking the trans would shift like the one in a BMW M3 or Nissan GTR for example, aint happening, and the reason why they're getting premature clutch failures. This trans are tough, they're just misunderstood on how deep we can push them with regards of shift speed, pressure and TM wise, especially when the car is making some good power. think about it, people want the barking tires feel, they want neck snapping power out the trans, and that's with just a CAI, add a supercharger and how long are the clutches supposed to last when the tune is abused, or the tuner have no idea what he/she's doing other than zeroing out shift speed, quadrupling shift pressures and zeroing out TM. not saying this was the case with your TCM tune, but would you ever know ?

Good luck.
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Old 11-16-2012, 04:47 PM   #16
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Quote:
Originally Posted by bluegoat06 View Post
I think the idea of the Superchips tuner in this case, was only to put the factory tune back, for dealer only purposes, so they'll be able to do pcm related work with GM approved devices. Probably SLP has a tuner lock option for their tunes, so nobody is able to see what they did, i hope this is not the case, and the calibration is wide open, in any case, more likely it was not for the owners to load the factory tune and drive to the dealer. Having the factory tune loaded with a supercharger is not good at all. and i'm sure SLP must have some sort of documentation that describes the procedure.


Good luck.
Exactly right. The SLP manual outlines just that. The intent is to drop it off and flash to the stock tune if needed by the dealer, then flash back to SLP when leaving dealer.

I've engaged SLP and they are requesting some additional data from me. The lady that answered the phone first said the GM powertrain warranty is voided with their package. I told her that isn't what their manual says and I'm happy to fax or e-mail a copy of it to them. I have also repeatedly offered the same to the GM customer service rep to prove my case and help speed this along. The call I received today from the GM rep was still absent any answers to the only question I have right now..."why was the warranty block initiated?" How difficult can it be to find the paper trail from June 2011 that answers that question? If they can't...then unblock my damn warranty and fix my car.
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Old 11-16-2012, 04:59 PM   #17
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Yea I forgot that car was supercharged.
I still don't see it getting covered by any warranty.
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Old 11-16-2012, 05:13 PM   #18
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Again, It's not like the OP bought a TVS 1900 supercharger and had XXX performance shop do the install. His car has a factory performance package, in this case, not exactly GM performance package, but an SLP/GM approved performance package. As long as the warranty says it's covered, it should be covered, problem might be that the GM extended warranty doesn't apply because of the SLP Performance package past 3 years/36k miles, as stated by the OP in his call to SLP.

If the warranty agreement specifically says the car is under warranty from GM past the initial 36k miles, i don't see why GM won't honor the same warranty we all have past the the initial 3years/36k miles. hopefully some brute legal force won't be required, but sometimes is needed to deal with Mayhem.
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Old 11-16-2012, 05:15 PM   #19
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This is a grey area I think...maybe you should have SLP try and mediate between you and GM?
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Old 11-16-2012, 06:11 PM   #20
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This might sound dumb but I've seen it work.

Make a post on SLP's facebook page and GM's facebook page with this complaint. I've seen problems solved MUCH faster over social networking than through regular customer service loops. You basically supersede things by communicating with the Marketing/PR team (who hold certain issues higher than CS). When I worked for a product group helping with social networking, we were all over any problem, even if we didn't tell you we were. Often times, we would change how we handled a bug based on the feedback.
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