Jump to content

Shift kit install (Zippy), now truck doesnt move


Recommended Posts

I have a '98 Sierra 4WD 1500 and I just finished swapping in a 2005 LS2 and 4L65E and new transfer case along with a 4.2L Trailblazer Torque Converter.

 

Before I installed the trans (trans had 7 miles on it when I installed it), I installed a Zippy Performance shift kit along with 2nd and 4th gear billet servos.

 

Everything seemed fine during the install of the shift kit except for the servos. According to the instructions, there should be no spring between 2 and 4th gear pistons if using both billet servos. With no spring, the pistons are free to slide on the pin quite a bit, didnt seem quite right, but thats what the instructions showed.

 

Today, we finished up the swap, and went to drive the truck, and it will not go into gear. I can pull it into R, D, 1, 2, 3 etc but nothing happens. I have no idea where to even begin looking. Nothing happens at all moving the shift lever between gears.

 

I have HPTuners, and the TCC slip RPM matches the engine RPM, so I assume the converter is getting fluid pumped through it. The trans temp had also reached about 90* after several minutes of playing around with it.

 

Is there anything I should check in the trans that I could of missed during the install of the shift kit? I would imagine even if we screwed something up, it would still at least go into first gear or something and move.

 

Any ideas on where to look or things to try would be greatly appreciated.

Link to comment
Share on other sites

sounds to me like you didn't get the boost valve back in all the way. that's about the only way you could lose all moving gears. this is the first thing i'd recomend checking.

Link to comment
Share on other sites

sounds to me like you didn't get the boost valve back in all the way. that's about the only way you could lose all moving gears. this is the first thing i'd recomend checking.

 

I don't have the directions or parts explosion in front of me, but the Boost valve went in the pump, and was the Sonas part correct?

 

If memory serves me correct, isn't that held in by a snap ring? Do I just need to push it in further or is there more to it?

 

Thanks for the advice, can't wait to see how the shift kit performs!

Link to comment
Share on other sites

i wouldnt bang on it, your going to need to keep pressure on it so you can put the clip on.its a bit of pita but it can be done!

 

We already have the clip on it...so shouldnt it be in far enough? We did have to hold it down to be able put the clip back on.

Link to comment
Share on other sites

Is it also possible that we didn't hook up the linkage behind the gear selector?

 

 

You could have. Some have missed that before, but then it won't come out of park either. That's easy to diagnose.

Link to comment
Share on other sites

Is it also possible that we didn't hook up the linkage behind the gear selector?

 

 

You could have. Some have missed that before, but then it won't come out of park either. That's easy to diagnose.

 

You shouldn't have to remove the linkage that the parking rod is on ,only the Manuel valve rod .Pull the pan and see if its hooked up,move the linkage and you should see the Manuel valve move back in the valve body ,BUT before I did that I would make sure that the transfer case is in gear and not neutral

Link to comment
Share on other sites

You could have. Some have missed that before, but then it won't come out of park either. That's easy to diagnose.

 

I was just thinking maybe the interal linkage fell off for some odd reason without me noticing. I'll have to check if it goes into neutral. I pretty sure it does.

 

Is the boost valve in all the way if the snap ring is installed, or do I still need to push it up farther.

Link to comment
Share on other sites

You could have. Some have missed that before, but then it won't come out of park either. That's easy to diagnose.

 

I was just thinking maybe the interal linkage fell off for some odd reason without me noticing. I'll have to check if it goes into neutral. I pretty sure it does.

 

Is the boost valve in all the way if the snap ring is installed, or do I still need to push it up farther.

 

No if the snap ring is in the groove its right.

 

just because it comes out of park ,doesnt mean that the manuel valve is hooked up.Its easy for the rod to fall off when u put the VB on.

Link to comment
Share on other sites

We just got the pan off, the boost valve was definately in all the way, and the shift link was connected. We pulled out the boost valve and all the parts are there and look to be in excellent shape. Nothing in the bottom of the trans pan either.

 

We're going to put it back together and give it another try. Only thing we can come up with is that the pump on the coverter may be bad.

Link to comment
Share on other sites

We just got the pan off, the boost valve was definately in all the way, and the shift link was connected. We pulled out the boost valve and all the parts are there and look to be in excellent shape. Nothing in the bottom of the trans pan either.

 

We're going to put it back together and give it another try. Only thing we can come up with is that the pump on the coverter may be bad.

 

Another update...still doesnt work. We unbolted the torque converter, and its just free spinning on the input shaft. After turning it back and forth, we got it to fall in to the trans some more, and now its locked to the input shaft and not free spinning like it was. We're going to bolt it back to the flexplate now and see what happens.

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

×
×
  • Create New...