97 4t60 sos - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 08-20-2011, 09:39 PM   #1
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Default 97 4t60 sos

So I'm driving and a feel an ever so slight kick. I go to leave a light and my trans does not shift. I mean I can if I keep it into first till 40 then shift. When it'* in other gears it slips and shutters like it wants to grab the next gear. What can this be.
Thanks so much for your help
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Old 08-21-2011, 12:30 AM   #2
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Check your fluid level. It may be as simple as a clogged filter. So I would start with a filter and fluid change.
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Old 08-21-2011, 03:49 AM   #3
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That'* what I'm looking to d. I can get shuttery shifts if baby it
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Old 08-26-2011, 10:28 PM   #4
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there is a TSB on this, its probably the 1-2 Roller Clutch.....
Sonnax part # K84956-SP is designed to beef this part up....
I had the smae problem on my 94 4t60e
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Old 08-26-2011, 10:31 PM   #5
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if you race the engine in second, does it bang in gear ?

if after you drive to like 3000 rpm in 1st, can you shift all the way to D4 and it drives fine but it will not down shift past 3 .... if the computer requests gear 2 from gear 3 you have to downshift to 2 to get back in gear....

been there done that :( big pain.
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Old 08-26-2011, 10:34 PM   #6
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Default here is the info from the ATSG TSI

ROLLER CLUTCH FAILURE
COMPLAINT: NO. I: Some 1991-1995 model vehicles equipped with the THM 4T60-E transaxle may
exhibit a no movement condition, with the selector lever in the D4 or 03 ranges, but will
CAUSE:
move when the selector lever is placed into D2 or Lo range.
NO.2: When the engine RPM is increased with the selector lever in the Park or Neutral
position, you may hear a noise that sounds like "Marbles in a Can'', but still moves and shifts
properly.
CORRECTION: The cause for both complaints listed above is a 1-2 roller clutch failure.
Replace the l-2 Roller Clutch Assembly and any related parts that may be damaged or I
broken (See Figure 1). Before installing into the transaxle, always replace the OEM 1-2 roller
clutch springs with Sonnax part number K84956~SP, which contains 16 stronger according
springs and is available from your aftermarket parts supplier (See Figure l).
This is recommended as part of every rebuild to increase transaxle durability.

DO NOT EXCEED 3000 RPM WITH THE SELECTOR LEVER IN REVERSE AND
THE WHEELS OFF THE GROUND. IF YOU DO THIS WITH OEM 1-2 ROLLER
CLUTCH SPRINGS, YOU CAN FAIL THE 1-2 ROLLER CLUTCH BEFORE IT EVER
LEAVES THE SHOP!
AUTOMATIC
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Old 08-26-2011, 11:13 PM   #7
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Just putting in my 2000 hd trans
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Old 08-26-2011, 11:49 PM   #8
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nice !
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Old 08-27-2011, 09:25 PM   #9
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Quote:
Originally Posted by Nighthwk12 View Post
Just putting in my 2000 hd trans
Well, that'* something to do while you're cooped up.
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Old 08-28-2011, 03:39 AM   #10
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hope your done with your 2000 unit...

today i went to the yard, pulled a 4t60e brought it home pulled my trans from my 94 bonny and put the junkyard trans in, took my 14 hours... alone.

sucks, i have no frinds here i really beat myself up
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