Anybody's tranny slipping - Page 2 - Chrysler 300C Forum: 300C & SRT8 Forums
1st Gen SRT8-Specific General Discussion General Discussion specific to the SRT8 models. If your topic is not specific to the SRT8, please post it in the All Models Forums.

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post #11 of 42 (permalink) Old 09-13-2007, 04:38 PM
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That slipping feeling when not warmed up may just be the torque converter. For some reason, the TC in the SRT-8 doesn't lock up as early as it does in the regular C. But once the fluid in the TC is warmed up, the slippage goes away.
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post #12 of 42 (permalink) Old 09-13-2007, 04:54 PM
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I have experienced slippage in my transmission while accelerating at high speeds on hill and inclines I took it the dealer and they flash the software and changed out the tranney controller (bad part) and the problem went away.

NOLA

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post #13 of 42 (permalink) Old 09-13-2007, 06:05 PM
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Quote:
Originally Posted by chiro444 View Post
I've noticed in the morning when the car is cold that the transmission seems to be slipping and maybe getting worse. Has anybody experienced this?
It's an automatic. All automatics slip until they're at operating temp. My race car has a ridiculous Turbo 400 in it and it is "soft" until the fluid warms up.

If you have any slippage past maybe 10 mins of running time, I'd bring it back to the dealer. The transmissions in these cars are pretty awesome though. They're beefed up nicely to handle the torque of ours and E-class cars with little trouble.

2006 CSRT

13.13 ET
107.7 MPH
2.00 60'

Last edited by MANGOPUPPY; 09-13-2007 at 06:08 PM.
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post #14 of 42 (permalink) Old 09-13-2007, 06:09 PM
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Quote:
Originally Posted by Rambit View Post
I always wondered about that. One of my guys is a tranny and he's always slipping on something. Never could quite figure that out.

Bernie
A tranny, huh? His earrings are probably nicer than my wife's!

Last edited by MANGOPUPPY; 09-13-2007 at 06:10 PM.
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post #15 of 42 (permalink) Old 09-14-2007, 06:25 PM
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Quote:
Originally Posted by MANGOPUPPY View Post
A tranny, huh? His earrings are probably nicer than my wife's!
I bet. This guy goes down at the drop of a hat. Oops, there he goes again! Chalk it up to another tranny needing service.

Bernie



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post #16 of 42 (permalink) Old 09-16-2007, 07:06 AM
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Slippery

Quote:
Originally Posted by MANGOPUPPY View Post
It's an automatic. All automatics slip until they're at operating temp. My race car has a ridiculous Turbo 400 in it and it is "soft" until the fluid warms up.
That is simply not true. Not "all" autos slip when cold. I currently have a full race 4L80E with an aftermarket controller and a 2800 rpm converter waiting on install, and if it slips when cold I'm going to be pissed!

As a regular racer and owner of many big block cars with a ton of turbo 400's since 1969, I don't agree. You will find that most autos make more fluid pressure when cold. This generally means that everything relative to pressure output is BEST when it's cold. Transmission oil is just like most motor oil in this respect, tend to thin out at higher temps.

If your transmission slips when cold, you've likely got an issue with pump wear or friction materials being worn. It can also be the type of fluids used. Lots of times we see wear on the clutches, thus getting less slip as the fluid thins out and warms up.

But I have seen a lot of strange behavior when first started in the AM!

BTW, the owners experiencing this should pay for an oil analysis, it can really help in diagnosis. Good luck.

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post #17 of 42 (permalink) Old 11-30-2007, 02:41 PM
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I've just begun to see similar issues on my SRT-8. When it's cold, it seems almost like there's there's a "1/2" gear - something between neutral and 1st gear. It does go away after barely a minute or two.

Anybody else seeing this?

What's the verdict? Problem, or expected? I know it holds the gears longer when cold (i.e. raised shift point) to help things warm up, but this truly feels like it's not even in 1st gear.
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post #18 of 42 (permalink) Old 11-30-2007, 03:06 PM
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Yes, mine also slips when it is cold. This problem started just after I had the leaky "O" ring in the transmission replaced. Talked to the Dealer and they want me to bring it in and leave it overnight so thay can replicate the cold start-up conditions. I just haven't had the time to leave it overnight. As some others have stated, the slippage does go away after it has warmed up a bit. So at this point, it's more of a minor inconvevience. I have 14.9k miles on the car.

Cold/Warm/Hot, the transmission should NOT slip whatsoever - especially in a new vehicle like ours.

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06' 300C SRT8 Black. Everything but DVD.
1/4 Mile: ET12.71@109.12mph. 1.93sec 60'
1/4 Mile: ET12.72@109.18mph. 1.94sec 60'
1/4 Mile: ET12.73@109.58mph. 1.96sec 60'
1/4 Mile: ET12.74@109.79mph. 1.99sec 60'
1/4 Mile: ET12.83@110.79mph. 2.05sec 60'
Mods:
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post #19 of 42 (permalink) Old 11-30-2007, 03:08 PM
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Thanks. Sounds like I've gotta find time for the same checkout by a dealer. Drat.

Oh well.
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post #20 of 42 (permalink) Old 11-30-2007, 11:05 PM Thread Starter
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Update:
First I can't believe this thread is still going.

Second, I took it to the dealer six months ago and they reprogrammed the tranny computer and that took care of the 1-2 shift hesitation but the slippage remained. I waited until the problem got really bad so that when I took it back they would definitely notice it. They certainly noticed it and 2 weeks later I got it back with a rebuilt transmission which works perfectly now.
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