well my tranny has about 9000. miles and I notice that if i'm driving and put it in 2 or 3 in my 4L60E auto transmission it does not hold back it shifts good and drive good just when you down shift manually shift it doesn't hold back it just coast but when you give it gas it revs up untill the speed and rpm are right for that gear
it take off good and shifts all the gears, is it suppose to be like that or is something wrong i'm not to sure but I don't think it was like that before.
thanks for the help guys
oh I don't have a shift kit in there only the sepperator plate that was drill alittle bigger.

 

Sounds normal to me.

What do you mean when you say the car does not hold back... no engine braking?

And when you say it revs up, does that mean it stays in the same gear you shifted from and then downshifts, or does it actually lose engagement and neutralize?

g

 

yes there is no engine brake in the gears if you manually shift it.
so if your in say 2nd gear manually and let off the gas completlly actually lose engagement and neutralize.
say your going 80 mph in D let off the gas then you manually put it in 2nd gear nothing happens.

 

How does it do if say you are in D and simply release the throttle?

If in 2nd manually, there should be engine braking. Meaning, take off from a stop let it shift into 2nd and hold it then release the throttle... does it have braking?

If not, then your overunning clutches or coast clutches as they are colled sometimes have failed... or are not being applied.

g

 

How does it do if say you are in D and simply release the throttle?

(In D you feel braking not alot but its there)



If in 2nd manually, there should be engine braking. Meaning, take off from a stop let it shift into 2nd and hold it then release the throttle... does it have braking?

(No, None at all)

 

I suspect then that your coast clutches have failed, the piston ic cracked, seals bad, 4-3 valve stuck... and so on.

What is the fluid condition?

g

 

Fluid still looks good but I did over fill it 2 weeks ago and left it like that,
I check it yesturday and the color is good but still over fill and bubbles when check hot
its about 1 Qt over

 

With no burnt fluild or anything Its possible the lugs broke on the overun hub at the sprag , I have see this and yet the trans work perfectly otherwise.

 

With the fluid condition good then it is safe to say there is a hard part malfunction, or an application problem. Meaning there may be a valve stuck not sending an apply signal.

Either way, the condition you have described is an internal one. Unfortunately the transmission must be diagnosed by a professional, that would be the fastest and most efficient way to get to the bottom of it.

Of course, you could let it go until there is a significant failure and then deal with it. However I do not recommend that course. If you would like to discuss it further I will be in the shop tomorrow all day... feel free to call me.

g

 

hmm now I wounder should I wait and see or pull tranny out and tear it down and inspect and change any bad parts and install all new seal then reasemble it?
I wounder how long will it last like this or will it get any worse.
I'm going put it on my datd logger and see if its throwing any codes.

I should be done with my daughter trannys tomarrow she had a 1993 chevy 1500 w/4L60E transmission and i'm rebuilding it for her.

 

Thank You.

 

You betcha, my pleasure!

g