Is it normal for my tranny to

[GOPAPA]

act this way..? When I back out of my garage in reverse and then put it in drive ,,there is a hesitation before engaging and taking hold to go forward.. A guy I know who is a pretty good mechanic says that is normal ..as there is no bands to tighten like there used to be ..if this is true ,,then what is a ok lenghth of time should I be waiting on the gear change?

[cochino12]

I had a plow truck that did that, had over 200k miles before I sold it. Not sure how common it is but it never got any worse. maybe not much help but at least your truck isnt the only one haha

[bk2life]

what type of truck? what type of motor? what type of transmission? how many miles?

[GOPAPA]

Truck is a 06 Silverado 4/4 ,Generation III. 5.1.1.1 LR4 , the tranny is one of these I think.. 4l60-E / 4l65-E miles:: 78000 +

[clinebarger]

You have a 4L60E, LR4 is a 4.8L.

The Foward Clutch Accumulator Piston is made of plastic & can crack....Causing a slow forward engagment, TransGo has a Aluminum replacement.

Excessive Forward Clutch clearence.....Most New 4L60E's have more than .080 clutch clearence, A well used one will have .100 Plus.....I like .040".

Slow reverse release is another issue, Chamfering the Reverse land on the manual valve will make a quicker release.....This can very well be your issue??......When shifting from Reverse to D4....Pause in Neutral for a couple seconds....Then shift to D4, If the forwards latch right up....I will walk you through chamfering the manual valve.

[GOPAPA]

Originally Posted by clinebarger

You have a 4L60E, LR4 is a 4.8L.

The Foward Clutch Accumulator Piston is made of plastic & can crack....Causing a slow forward engagment, TransGo has a Aluminum replacement.

Excessive Forward Clutch clearence.....Most New 4L60E's have more than .080 clutch clearence, A well used one will have .100 Plus.....I like .040".

Slow reverse release is another issue, Chamfering the Reverse land on the manual valve will make a quicker release.....This can very well be your issue??......When shifting from Reverse to D4....Pause in Neutral for a couple seconds....Then shift to D4, If the forwards latch right up....I will walk you through chamfering the manual valve.

Very interesting,and thx

How far into the tranny does one have to go to do the things you suggest to tighten up the slack when shifting?

[clinebarger]

Originally Posted by GOPAPA

Very interesting,and thx

How far into the tranny does one have to go to do the things you suggest to tighten up the slack when shifting?

Did you perform this test....

"When shifting from Reverse to D4....Pause in Neutral for a couple seconds....Then shift to D4, If the forwards latch right up....I will walk you through chamfering the manual valve"