HELP! rebuilt my 4l60e, now it doesnt move.

ok, so i thought i'd save myself some money and rebuild a trans on my own. It went smoothly, i am pretty sure i didnt leave anything out. Put the trans in last night and lo and behold, nothing! No forward, no reverse, nada. It doesnt matter if i shift it manually or unplug the connector, i have nothing. My first step was to check the pump. I unplugged a cooler line and fired it up to see trans fluid spray about 8ft out of my truck so i think the pump is fine. The rebuild kit i used came with a vb plate and some new gaskets, thinking maybe that was it i dropped the valve body, made sure all the balls where in the right spot, then replaced the seperator plate with an oem one from the dealer. Still have no movement. Im stuck, literally. Anyone know what it can be?

the trans is from a 2000 blazer. i swapped the bellhousing and used a tc from a 2004 silverado. could it be the torque converter? it did come from a truck that had its trans replaced due to a cooler line popping off and loosing all the fluid...

Double check all your connections. If there all good and assuming that your assembled it correctly I would say torque converter

would it not even try to move at all if it was the tc?

If the truck would move with a bad tc is a hard question, it kinda depends on how the tc brook. Another idea is there isn’t any ATF getting to the TC, If there wasn’t any ATF in the torque converter then it would just spin with out moving anything in the trans.

how much ATF have you put back into the truck since reinstalling the trans? did you prefill the TC before installing it? and is the TC completed seated all the way onto the shaft, you should of had to turn the TC a few times to get it to slide all the way on. just a few thoughts. the 4l60e's hold something like 16 quarts when bone dry. correct me if im wrong guys..

14-16 sounds right

double check your TC and make sure its pushed all the way on the shaft. spin it while wiggling it to makesure its all the way on, it should like on and feel like its locking in about 3 times i believe, maybe 2, cant rightly remember. but double/tripple check, if its not pushed all the way on, and you finally get it to move, it will snap inside the pump where the TC goes. , 14-16 is correct. and make sure not to over torque the valve body, and make sure you have proper fluid in before putting in gear or youll risk burning the clutches

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Originally Posted by 02gmcbandit

double check your TC and make sure its pushed all the way on the shaft. spin it while wiggling it to makesure its all the way on, it should like on and feel like its locking in about 3 times i believe, maybe 2, cant rightly remember. but double/tripple check, if its not pushed all the way on, and you finally get it to move, it will snap inside the pump where the TC goes. , 14-16 is correct. and make sure not to over torque the valve body, and make sure you have proper fluid in before putting in gear or youll risk burning the clutches

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i remember mine being like 2 maybe 3 dont remember :-X some one will chime in, but i when you install the tc, it takes a little while for the alotted atf the go into it..

I'm thinking that if you removed a cooler line and it shot fluid out pump is working, however I know in the past year models they change input shaft depending on year and engine size, well if your 2000 input is smaller shaft than what that 04 converter has then its not going to move. Not sure if they changed input sizes on these models or not, haven't messed with trannys in years, just a thought

BB

that is also a thought, the 4l60 and 4l65 have different length shafts now that i think of it. not sure if the shaft length on the 4l60 is year dependant. could call the dealership and see most likely

i know it was seated correctly, thats not the issue. I know the input shaft changed when they went to the pwm version in 95, but they should be the same from then on. The tc was full of fluid when i installed it, it doesnt make any weird noises from the trans when running. I dont know what the hell the issue is but im taking my quads to the badlands in two weeks so the truck needs to be moving. I dont have time to dick with it right now, i was hoping it was something easy but im looking at at least replacing the tc. Soooooooo I said "to hell with saving money", called Jasper and i have a lvl1 performance trans and tc coming tomorrow. Vacation back on track, minus $1470......:'(

i thank everyone for your replies! unfortunately auto transmissions just suck and i think from now on ill leave that aspect of my truck to a trans professional. I already wasted enough trying to budget-build a craigslist tranny on my own.

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Originally Posted by TimeLimitHit

i thank everyone for your replies! unfortunately auto transmissions just suck and i think from now on ill leave that aspect of my truck to a trans professional. I already wasted enough trying to budget-build a craigslist tranny on my own.

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huh well thats one way to get it done... ill be trying to rebuild mine this winter hopefully with better luck than yourself but i will be just taking apart the original and replacing internals, not swapping trans from diff vehicles.

i've successfully rebuilt a 4l60 before, but it was a customer at work, no swaps or anything. Just a soft rebuild, clutches and steels. but i changed stuff on this new one, sunshell, input sprag, etc.. maybe i effed something up in there, who knows? I dont!

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Originally Posted by 96/chevy/pu

I'm thinking that if you removed a cooler line and it shot fluid out pump is working, however I know in the past year models they change input shaft depending on year and engine size, well if your 2000 input is smaller shaft than what that 04 converter has then its not going to move. Not sure if they changed input sizes on these models or not, haven't messed with trannys in years, just a thought

BB

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X2 The Blazer I am pretty sure came with a 4.3 Vortec. The tail on the crank is different than the LS crank. My buddy tried to put a trans in his S-10 that had the V-6 and I had to change the input shaft for him. The trans came out of a Camaro so had to take the old shaft out of his old trans and put it in the new one. Also the tc should seat 3 times. If you didn't get 3 then your problem is the input shaft.