Tranny went out.. - Page 4 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 07-14-2006, 02:57 PM   #31
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I've been leary of your crook...I mean mechanic for quite a while.

Ask around friiends and parents friends for names and references of good reliable mechanics. They are out there..but you need to look for them.
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Old 07-14-2006, 09:48 PM   #32
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Eric, the tranny fluid, filter, and gasket is really easy to do.
I did it myself for the firstime every last year.

Guys would a bigger or second tranny cooler help in this case?
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Old 07-14-2006, 10:12 PM   #33
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Quote:
Originally Posted by popatim
Eric, the tranny fluid, filter, and gasket is really easy to do.
I did it myself for the firstime every last year.

Guys would a bigger or second tranny cooler help in this case?
No on having two coolers, but a larger one may be in order. But thats me
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Old 07-14-2006, 11:11 PM   #34
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Eric wouldn't have a cooler from the factory. It wouldn't hurt to add a reasonably sized one.

Some around here have been oversize cooler happy and it may hurt in the winter..
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Old 07-15-2006, 12:51 PM   #35
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For up north I would reccomend a mid sized cooler.... Don't go nuts like the Admin in FL... He has a lot of hot or warm weather... Never cold enough to overcool the trans...

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Old 07-15-2006, 03:14 PM   #36
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Default Re: Tranny went out..

Quote:
Originally Posted by erics95se
There'* no first gear, no matter what. Starts out in second. Struggles. There'* a slight hissing coming from the transmission when you go to go. It won't go into first even when it'* switched into lowest gear on the console shift lever either.. What'* your suggestion as to the cure to the problem, or what the problem could be?

PS, i just checked fluid levels with trans and engine warm, fluid is at correct operating level.
I wonder if you don't have some kind of vacuum leak that caused this. IIRC, the 4T60E was more reliant on vacuum controls where the 4T65E went electronic. The hissing sure indicates an air leak of some kind, and that is the only thing I can think of that these trannies use for air.

Now that its working again, are you still hearing the hiss?
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Old 07-15-2006, 04:28 PM   #37
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Default Re: Tranny went out..

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Originally Posted by TheEngineer
Quote:
Originally Posted by erics95se
There'* no first gear, no matter what. Starts out in second. Struggles. There'* a slight hissing coming from the transmission when you go to go. It won't go into first even when it'* switched into lowest gear on the console shift lever either.. What'* your suggestion as to the cure to the problem, or what the problem could be?

PS, i just checked fluid levels with trans and engine warm, fluid is at correct operating level.
I wonder if you don't have some kind of vacuum leak that caused this. IIRC, the 4T60E was more reliant on vacuum controls where the 4T65E went electronic. The hissing sure indicates an air leak of some kind, and that is the only thing I can think of that these trannies use for air.

Now that its working again, are you still hearing the hiss?
The Vacume Modulator on the 4T60-E was for line pressure and only controled shift quality to a decent degree... Unplug the modulator on a 60-E and it will still shift as it is electronic and uses a set of solenoids controled by the PCM... What you willl get is a very harsh shift..

The Trans was either too hot, there may have been a solenoid sticking, or the PCM may have had a goof... the 95 PCM'* are very freaky( 94 included )...

The Old hydraulic 4T60 is a bit of a diffrent story.. But again the Vac Modulator is more for Shift quality..

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Old 07-15-2006, 06:48 PM   #38
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Alright guys here is where I need help. Just recently the check engine light came on in my 99 SSEi. It seems when I take off from a stop it struggles but it only does it when it is at normal operating temps. When it is cold it shifts very smooth but still does the same thing it did before. As it shifts from 2nd at 42 mph, the tranny shifts but drops the rpms to 1500 like it is going into OD. Now I am really worried and I need to know exactly what is wrong and fast I am using my 92 as a back up but I need to know what is wrong with my 99. The fluid is a lt. pink but smells burnt. If it comes to replacing the tranny I need to know if anyone has a decent one they are willing to part with. Thanks alot guys.

A.J.
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Old 07-15-2006, 06:58 PM   #39
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Default Re: Tranny went out..

Quote:
Originally Posted by jr's3800

The Vacume Modulator on the 4T60-E was for line pressure and only controled shift quality to a decent degree... Unplug the modulator on a 60-E and it will still shift as it is electronic and uses a set of solenoids controled by the PCM... What you willl get is a very harsh shift..

The Trans was either too hot, there may have been a solenoid sticking, or the PCM may have had a goof... the 95 PCM'* are very freaky( 94 included )...

The Old hydraulic 4T60 is a bit of a diffrent story.. But again the Vac Modulator is more for Shift quality..
OK, it was just a thought. I wasn't sure what all the 60 used vacuum for, but it was the only thing I could think of that might cause a hiss. If that isn't it, I would put my money on a PCM hiccup. I had a 95 Regal GS for a while and part of the reason I got rid of it is that I was sick of having a OBD I/II hybrid that no one knew how to work on. That tranny (also a 60) gave me no end of trouble, particularly the torque converter. I never had this issue though.
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Old 07-15-2006, 09:38 PM   #40
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Quote:
Originally Posted by Boreas
...
Also I reccomend AGAINST doing a transmission flush. Read more here. ......
I read the article.

What kind of "flush machine" are we talking about.... The only one that I have seen my
tranny-guy use does exactly what the article says to do by yourself.... the only thing is that it does it automatically, instead of you pouring in the clean fluid....

It has two separate containers, one full of new fluid, and the second one to collect the old fluid. You take off the line at the cooler, hook up the new fluid input to one side, and the old-fluid output to the other. Start the machine and the car, and the dark fluid empties while the new fluid replaces it.

Since new fluid is always flowing out of the new-fluid container, how can that "contaminate" anything???


And by the way, guys, fluid colour may or may not be a good indication of tranny health. My 1997 turns the colour of crankcase oil in about 10,000 km (which is why I DO replace the complete fluid every year or two). It has been that way since I bought it about 40,000km ago and who knows how long before. It has not yet hiccupped, touch wood. Tranny guy says he never seen anything like it, says with colour like that should have all kinds of code-sets, etc, but nothing ever happens.

Matters not to me because I negotiated the purchase price with the idea that I may have to replace the tranny, anyway.

Tranny guy says problem with this series of trannies is a bad design in a valve that operates way too much. He offers a modified rebuild for $1800 installed. I keep thinking that its time to do it, but then the black oil pulls me through for another year or two and so..."let'* wait some more"....

It will probably get done before winter.

Maybe.

...
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