Transmission issues (Implodes)
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2004-2007 Cadillac CTS-V General Discussion Discussion, Transmission issues (Implodes) in Cadillac CTS-V Series Forum - 2004 - 2007; Hello everyone. I am new here, but not to the V's. I own a 2005 Red V with 98,900 miles ...
  1. #1
    Charlie Costello is offline Cadillac Owners Member
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    Transmission issues (Implodes)

    Hello everyone. I am new here, but not to the V's. I own a 2005 Red V with 98,900 miles and a 2005 Silver V with 51,000 miles.

    My Red one is my summer highway car. It has never been beat on or abused. I experienced a catastrophic failure two weeks ago. At 65 mph in 6th gear, the trans made a loud metallic squealing and then locked up. I have further found out that this is a common occurance on these cars approaching 100,000 miles. The reverse gear bearing welds itself to the gear shaft, then scatters and locks things up. I am getting a level V reman from RPM this week. They say they have done literally hundreds of V transmissions with virtually the same issue. Has anybody on this forum suffered this failure?

    I bought the Silver one from my 67 year young brother in Southern California last November. It had 47,000 miles on it for 14,000 dollars. I thought it was a great price. At 20,000 miles his transmission made terrible noises. Cadillac replaced it right away. Within one week, the replacement began making noise after 200 miles. They replaced it again, and he had no issues after that.
    I notice a mild drivetrain vibration at 40-50 mph when cold (first 8 miles). The vibration lessons substantially when warm.

    Any information would be appreciated. Sorry for the long post.

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    rand49er's Avatar
    rand49er is offline Cadillac Owners 10000+ Posts
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    Re: Transmission issues (Implodes)

    I think I recall one other occurrence.

    Must be all those "hundreds" of others aren't on this forum.
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    mstrjon32 is offline Cadillac Owners Enthusiast
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    Re: Transmission issues (Implodes)

    My guess is your drive train vibrations are actually your tires...but I've been wrong before. I had similar issues and it ended up being an issue with the tires. Something about these cars...they're very sensitive to tire flat-spotting.

    As for the transmission, I've heard that you can do them in by puttering around in 6th at 1,000 RPM...I try and keep mine at 3,000 RPM in 6th, so hopefully I'll be alright.

  5. #4
    Charlie Costello is offline Cadillac Owners Member
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    Re: Transmission issues (Implodes)

    I don't putter, but don't run over 4000 RPM either. It is a highway car running at 65 to 70 mph most of the days. It stays around 2000 RPM's. It is driven from 120 miles per day to 650 miles per day depending on where work takes me. Thanks for your responses and keep them coming.

  6. #5
    rjoffe is offline Cadillac Owners Connoisseur
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    Re: Transmission issues (Implodes)

    I second the tire theory, what brand/size are you running ?

  7. #6
    Charlie Costello is offline Cadillac Owners Member
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    Re: Transmission issues (Implodes)

    I just put new NEXEN 7000's on both cars the same day. Nothing from the red one, only the silver one. Stock size on both cars.

  8. #7
    PISNUOFF Guest

    Re: Transmission issues (Implodes)

    I had my reverse bearing weld onto the shaft also. It happened at around 20,000 miles but it never scattered, though. GM rebuilt the trans and it has been fine ever since.

    I also have more vibration when my tires are cold then it goes away after they warm up. I have put several sets of the same brand of tires on and it was present on some and not on others.

  9. #8
    Charlie Costello is offline Cadillac Owners Member
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    Re: Transmission issues (Implodes)

    Thanks for all the great information. I am beside myself because I might have to drive to Jacksonville Florida this week and am not comfortable. I do not need another one seizing up. I love the cars. My brother bought the CTS-V wagon after he sold me his, but he got the 6 speed automatic. Good choice I think. He loves it. The dealer said it was the first automatic sold to a private individual (others are engineers cars from GM). Nothing to prove that though.

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    AAIIIC's Avatar
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    Re: Transmission issues (Implodes)

    The transmission in the V has been used in a number of different applications over the years, and I can't say I've ever heard of this being a common problem. I think it's rather unlikely that the shop has really done hundreds of V transmissions and yet there have been few (if any) reports here. There just aren't that many 1st gen Vs on the roads, so if hundreds of them were blowing transmissions, I would have to think there would be word of it here or over in the V forum on LS1tech.

    I can understand why you would concerned, having been through 3 transmissions between the 2 cars, but I think you just had a run of bad luck.
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  11. #10
    liqidvenom is offline Cadillac Owners Connoisseur
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    Re: Transmission issues (Implodes)

    Quote Originally Posted by AAIIIC View Post
    The transmission in the V has been used in a number of different applications over the years, and I can't say I've ever heard of this being a common problem. I think it's rather unlikely that the shop has really done hundreds of V transmissions and yet there have been few (if any) reports here. There just aren't that many 1st gen Vs on the roads, so if hundreds of them were blowing transmissions, I would have to think there would be word of it here or over in the V forum on LS1tech.

    I can understand why you would concerned, having been through 3 transmissions between the 2 cars, but I think you just had a run of bad luck.
    You have to realize there are alot of V's all over the world that arent on this forum. I've run into a bunch now that ive been here in Michigan that have never been on an internet forum site. one recently had a motor go on him that a vendor on ls1tech built for him.... i told him about the forum but he said he doesnt have time for it.


    point is that im sure shops would pass v issues to rpm while those people might not be forum type people or even be looking to share that their vehicles have failed them.

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    CadzillaTN's Avatar
    CadzillaTN is offline Cadillac Owners Connoisseur
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    Rpm might be taking about the t56 in general, not the V specific m12 t56?

    Hopefully when mine locks up I'll be on a mountain road so I can shove it off a cliff. Emergency brake fully engaged of course (for insurance purposes).

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    Charlie Costello is offline Cadillac Owners Member
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    Re: Transmission issues (Implodes)

    RPM states that due to the V t56 design, there is no tailshaft housing like the others used. The issue involves the tailshaft helping to wick oil to the reverse bearing better. The "no tailshaft" design is where the problem arises. The corvette has the same design from what I understand, and they have reported the same issues. Thanks again for the great replies and information. It is appreciated.

  14. #13
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    Re: Transmission issues (Implodes)

    I had the exact same problem (reverse gear welding to shaft) and took (towed) my car to RPM. I visited their shop and they showed me the failure ( http://www.cadillacforums.com/forums...k-reverse.html ). They've certainly done several V specific T56's and based on what I saw in the shop I can believe 100's of T56's in general. Great folks and I'm very happy with their Level V transmission in my car.
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    Charlie Costello is offline Cadillac Owners Member
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    Re: Transmission issues (Implodes)

    Thanks ronr for the reply. The failure issue makes sense since I have had t56's in a 95 Roadmaster, 95 Impala SS, and factory in my 96 Ram Air T/A. No issue in 100K miles on the Roadmaster with a 60Kmilage trans to start with. The SS is a brand new install with one mile on it, so the track record is not established.
    Jeremy has treated me well so far, and I hope to have the trans next week early. The price is now 2595.00 plus shipping. Still less than GM 3800 for a new one.
    I am also contimplating writing a letter to the NHTSB concerning the issue. My issue that I think is worthy is that mine locked up, and I almost got rear ended at 65 mph. This now becomes a safety issue. I am trying to gather names of people who have suffered this failure, for more guns in the letter. Anybody interested?

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    Re: Transmission issues (Implodes)


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