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  1. #1
    Forum Moderator digitaloutsider's Avatar
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    Failing torque converter symptoms (help!)

    I'm pretty sure I've narrowed my transmission problems down to my torque converter. If I hit the gas hard from a stop, the car will shudder. TC shudder. Going up hills, the car shudders. When you take your foot off the brake and you're in drive, the car BARELY moves under it's own power. My mom's L36 feels stronger off the line and moves a lot easier. If you let off the brake, it takes off pretty well on it's own, unlike mine.

    I can get a torque converter for $120, and if this is the problem, I'd much rather just go ahead and change that rather than trying to source an entire tranny.

    So, does this sound like TC problem to you guys?
    2006 Nissan Altima SE-R 3.5L 214ci VQ35DE DOHC 60 V6 | 6MT
    Raclingline HFPCs and Y-pipe, NWP VIAS delete, Goodridge SS brake lines, removed airbox snorkel, deburgered.

    1998 Jeep Grand Cherokee 5.9 Limited 5.9L 360ci Magnum Pushrod 90 V8 | 46RE | NV249
    Flowmaster 50 SUV muffler, 180 t-stat, CAI, does sick burnouts.

    1994 Ford Thunderbird SC Supercharged Intercooled 3.8L 231ci Pushrod 90 V6 | M5R2
    180 t-stat, intake, ASP UDPs, 10% S/C pulley.

  2. #2

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    Re: Failing torque converter symptoms (help!)

    alot of times converter problems aren't the converter itself, but the TCC (lockup) solenoid. not familiar with the 65E's though.
    no longer a w body owner.

  3. #3
    Forum Moderator digitaloutsider's Avatar
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    Re: Failing torque converter symptoms (help!)

    We had one fail in our Montana, and it didn't seem to go this way. There was no shuddering until about 500 miles before it shit the bed. It still moved just fine, and didn't have the "uphill battle" as I call it. That's what leads me to believe it's the TC.
    2006 Nissan Altima SE-R 3.5L 214ci VQ35DE DOHC 60 V6 | 6MT
    Raclingline HFPCs and Y-pipe, NWP VIAS delete, Goodridge SS brake lines, removed airbox snorkel, deburgered.

    1998 Jeep Grand Cherokee 5.9 Limited 5.9L 360ci Magnum Pushrod 90 V8 | 46RE | NV249
    Flowmaster 50 SUV muffler, 180 t-stat, CAI, does sick burnouts.

    1994 Ford Thunderbird SC Supercharged Intercooled 3.8L 231ci Pushrod 90 V6 | M5R2
    180 t-stat, intake, ASP UDPs, 10% S/C pulley.

  4. #4
    5speedz34's Avatar
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    Re: Failing torque converter symptoms (help!)

    If the TC is bad why not just replace the whole tranny considering how many miles are on the car?

    Tony.V
    1992 Lumina Z34 |3.4L 207ci DOHC 60 V6; Getrag 284|
    1994 Pontiac Grand Prix GTP |3.4L 207ci DOHC 60 V6; Hydra-Matic 4T60E|
    1999 Chrysler 300M |3.5L 214ci SOHC 60 V6; 42LE|

  5. #5
    Forum Moderator digitaloutsider's Avatar
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    Re: Failing torque converter symptoms (help!)

    Money issue.
    2006 Nissan Altima SE-R 3.5L 214ci VQ35DE DOHC 60 V6 | 6MT
    Raclingline HFPCs and Y-pipe, NWP VIAS delete, Goodridge SS brake lines, removed airbox snorkel, deburgered.

    1998 Jeep Grand Cherokee 5.9 Limited 5.9L 360ci Magnum Pushrod 90 V8 | 46RE | NV249
    Flowmaster 50 SUV muffler, 180 t-stat, CAI, does sick burnouts.

    1994 Ford Thunderbird SC Supercharged Intercooled 3.8L 231ci Pushrod 90 V6 | M5R2
    180 t-stat, intake, ASP UDPs, 10% S/C pulley.

  6. #6
    5speedz34's Avatar
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    Re: Failing torque converter symptoms (help!)

    Quote Originally Posted by digitaloutsider
    Money issue.

    Yeah, aint that the truth.

    Tony.V
    1992 Lumina Z34 |3.4L 207ci DOHC 60 V6; Getrag 284|
    1994 Pontiac Grand Prix GTP |3.4L 207ci DOHC 60 V6; Hydra-Matic 4T60E|
    1999 Chrysler 300M |3.5L 214ci SOHC 60 V6; 42LE|

  7. #7
    Forum Moderator mfewtrail's Avatar
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    Re: Failing torque converter symptoms (help!)

    What's the fluid look like in the transaxle Shaun? Your issue does sound like the converter itself to me(from your comments on low end acceleration, that tells me you're not getting proper torque multiplication which means the converters clutch is slipping). Like Pat said though, the root cause may not be the converter itself. These transaxles have TCC solenoid issues that can lead to toasting a converter or the entire transaxle(read over on clubgp, seems it can be pretty common for certain years).

  8. #8
    Forum Moderator digitaloutsider's Avatar
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    Re: Failing torque converter symptoms (help!)

    Yeah the TCC died in the Montana's 4T65 and took the entire transmission with it. It ends up killing the pump due to high heat and overall breakdown of the transmission fluid. The fluid is still red, so I want to nip this problem in the bud so to say. I think by changing the TC and TCC solenoid I might just be able to squeeze a little more longevity out of it.

    I guess I can always try changing the solenoid first and seeing if that fixes anything.
    2006 Nissan Altima SE-R 3.5L 214ci VQ35DE DOHC 60 V6 | 6MT
    Raclingline HFPCs and Y-pipe, NWP VIAS delete, Goodridge SS brake lines, removed airbox snorkel, deburgered.

    1998 Jeep Grand Cherokee 5.9 Limited 5.9L 360ci Magnum Pushrod 90 V8 | 46RE | NV249
    Flowmaster 50 SUV muffler, 180 t-stat, CAI, does sick burnouts.

    1994 Ford Thunderbird SC Supercharged Intercooled 3.8L 231ci Pushrod 90 V6 | M5R2
    180 t-stat, intake, ASP UDPs, 10% S/C pulley.

  9. #9

    Re: Failing torque converter symptoms (help!)

    when the pump started failing on my original tranny, it had the same symptoms when accelerating from a stop. Felt like a constant slip.
    Yeah, it's still on the road. 219,982 mi


  10. #10
    Forum Moderator digitaloutsider's Avatar
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    Re: Failing torque converter symptoms (help!)

    After driving it again today, I'm starting to think it might be the pump.

    My shifts don't feel right at all.
    2006 Nissan Altima SE-R 3.5L 214ci VQ35DE DOHC 60 V6 | 6MT
    Raclingline HFPCs and Y-pipe, NWP VIAS delete, Goodridge SS brake lines, removed airbox snorkel, deburgered.

    1998 Jeep Grand Cherokee 5.9 Limited 5.9L 360ci Magnum Pushrod 90 V8 | 46RE | NV249
    Flowmaster 50 SUV muffler, 180 t-stat, CAI, does sick burnouts.

    1994 Ford Thunderbird SC Supercharged Intercooled 3.8L 231ci Pushrod 90 V6 | M5R2
    180 t-stat, intake, ASP UDPs, 10% S/C pulley.

  11. #11

    Re: Failing torque converter symptoms (help!)

    see if you can rent a transmission pressure gauge. If you think it's a pressure problem it could also be the PCS. I had an issue with mine when I bought my car. But I got rid of the problem.
    -Sean
    Current: 2004 Audi A4 1.8T : 6-speed // 1971 Chevrolet C10 LM7 : 4L60E // 2005 Truimph Speed Triple
    Previous: 1999 Regal GS - L67 : 4T65E HD // 1993 Regal GS L27 : 4T60E // 1991 Cutlass International LQ1 : Getrag 284

  12. #12
    Forum Moderator digitaloutsider's Avatar
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    Re: Failing torque converter symptoms (help!)

    I'm guessing PCS means pressure control solenoid. Where is that located?
    2006 Nissan Altima SE-R 3.5L 214ci VQ35DE DOHC 60 V6 | 6MT
    Raclingline HFPCs and Y-pipe, NWP VIAS delete, Goodridge SS brake lines, removed airbox snorkel, deburgered.

    1998 Jeep Grand Cherokee 5.9 Limited 5.9L 360ci Magnum Pushrod 90 V8 | 46RE | NV249
    Flowmaster 50 SUV muffler, 180 t-stat, CAI, does sick burnouts.

    1994 Ford Thunderbird SC Supercharged Intercooled 3.8L 231ci Pushrod 90 V6 | M5R2
    180 t-stat, intake, ASP UDPs, 10% S/C pulley.

  13. #13
    1990lumina's Avatar
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    Re: Failing torque converter symptoms (help!)

    Weren't you saying a while ago your pump is starting to whine??
    Jeff L. :: 2nd Canadian to win COTM The Preservation for POS W-bodies Canada Chapter
    2004 Acura TSX | 2.4L I4 iVTEC; 5 Speed Auto | 1 of Many Made In '04 | 89,XXXKM
    1990 Chevrolet Lumina Euro 3.1 | 3.1L 191ci 60 V6; 440T4 | 1 of 43,912 Made In '90 | 194,XXXKM
    1985 Mazda RX-7 S | 1.1L 70ci 12A Twin Rotor RE; 5spd | 1 of 63,105 Made in '85 | 130,XXXKM

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