Transgo shift kit for 4t65e

[enslow]

Re: http://www.automotiveforums.com/vbul...d.php?t=899929

Shifting has been getting worse recently, and last week it began whining and the fluid foaming. Yesterday I dropped the pan and successfully installed the accumulator portion of the kit.

As I was torquing the accumulator bolts to the specified torque of 20 ft lbs (240 in lbs) one bolt twiste right off! I'm not happy about it, but I figure there are 4 other bolts holding the acculator to the transmission housing and there are no loose metal shavings, so I have left it. So far, that doesn't seem to be an issue.

During the test drive, shifts were nice and firm, except for the clunk and shutter if I try to accelerate hard from a stop. That was an issue before, and remains an issue. I've heard of others digging into the side pan and replacing the PCS themselves. I've done a steering rack, dropping the subframe shouldn't be so bad.

[happydog500]

Originally Posted by enslow

I've done a steering rack, dropping the subframe shouldn't be so bad.

Nightmare. IMHO

Chris.

[012620]

Hi,

I wonder if you torqued the accumulator at the correct torque value. You said "As I was torquing the accumulator bolts to the specified torque of 20 ft lbs (240 in lbs) one bolt twisted right off!". The ZZP Kit I used said "torque the accumulator bolts to 97 in/lbs". Another website states 106 in/lbs and 106 in/lbs for pan bolts. Also ZZP said "10 ft/lbs for pan bolts.
Hope this is correct info.

[enslow]

It's good for you to be questioning the torque. In fact I have been wondering if the torque specified in the service manual was incorrect, or if those bolts are supposed to be replaced.

Indeed, the torque specified for the accumulator itself (as opposed to the accumulator mounting bolts which are longer) is less. The torque specified for the pan bolts is 13 ft lbs, IIRC.

At this point it seems safe enough to leave well enough alone.

[dpalomaki]

The ATSG manual for the 4F65E lists 97 in-lb for both the accumulator housing cover and the accumulator mounting bolts. On another page it shows 106 in-lbs, close. That is about 8 or9 fl-lbs. A big difference from 20 fl-lbs in aluminum.

I installed the Transgo kit a few months ago to clean up a sloppy (slow) 1-2 and 2-3 shift. It did make a worthwhile difference for my '04.

[enslow]

Interesting. GM's FSM must have been incorrect. The Trango kit doesn't come with much in the way of instructions so all I had to go on was the FSM, which is normally quite accurate.

I guess this should be a warning to others using the 1997 factory service manual for the H body GM. The acculator torque listed is incorrect (accumulator mounting bolts).

[dpalomaki]

Originally Posted by enslow

Interesting. GM's FSM must have been incorrect. ...
I guess this should be a warning to others using the 1997 factory service manual for the H body GM. The acculator torque listed is incorrect (accumulator mounting bolts).

FWIW the 2004 FSM shows 106 in-lbs.

[JokingJester1321]

I have a 2004 Buick lesabre and I'm having the same type of problem it's hard shifting after a few min of driving after it heats up I changed the trans fluid and new filter to but still same problem I'm going to try the pcs and see if that will fix it but I wana try the shift kit to how do I go about install can I reach it via bottom of pan ? And any other ideas ? I know this form is kinda old but really need help.

[dpalomaki]

You can reach the 1-2 and 2-3 shift components from underneath once you remove the tranny pan and filter. The 3-4 shift (said to be less of an issue) will require that you drop the tranny at least part way, as will PCS replacement. (I did not do the 3-4 shift and turns out I did not need to, but that was my car, yours may well be different.

As you likely have read, the shift kit will addresses the issue in many case, but not in all cases. There are other potential issues as well, such as the PCS, or excessive wear on other components that could cause similar symptoms, so there the risk you could install it and see little or no benefit.