I'm sry it didn't work. And I'm sry I didn't see your post. I hope you figured something out with it. I understand how frustrating it is. Precision Transmission on yt here have some fantastic info, if I get the money up I will be sending it to them!!!
If replacing the 1-2 accumulator piston/housing, go ahead and obtain the Sonnex electrical connector blocker bracket. This keeps the transmission's internal electrical harness connector from being pushed to the inside of the transmission. My 1993 lost all the retaining finger clips (five of them) due to 30 years of plastic degradation. I dropped the pan, replaced the whole harness, and all the solenoids while in there... And if the truck makes it another thirty years and the new harness plug loses its retaining fingers? The Sonnax bracket will keep it in-place.
I have a hard shift in my chevy 93 k1500. It's not like crazy violent or anything like you mentioned in your 2 videos I watched. It's just enough to bug me so I am going to try fix this 1-2 hard shift issue. It shifts flawlessly in the other gears so I tried just switching the tps and that actually helped a little bit. Thanks for the video. I've seen more then a few people with this issue on youtube. Never have I experienced it myself till I bough a used truck
Hi, did the new 1-2 accumulator fix the hard shift for you? Ive had the same problem changed out 3 tps sensors. 1 of them made it work a hair better. but still hard shift, i changed all 4 solenoids no luck, Im about to try this if it worked for you.
@@puppet-m I will be changing it when my parts come in from rockauto and Amazon. I really hope it fixes the hard shift. I don't want to have to pull the transmission and try do a rebuild myself but I will if I have to. I ordered the sonax 1-2 pinless accumulator, a & b shift solenoids, wix filter and rubber pan gasket. I'm kinda thinking it's the forward accumulator though also. But I don't want to have to take the valve body out and do all the other required work. It's doable just going to try this fix first. Truck is due for new atf anyways and filter. I have 93 chevy with a 4l60e but it's kind of the half way point in between being fully electronic and half hydraulic. Old style. The in between point before having full electronic. If that makes sense lol 😆
Thanks for the video. I was looking for specific info on the springs. Ithink Im going to re-use the stock springs along with the sonnax piston. I dont want a overly hard shift
I ordered a new one and gonna go ahead and replace it with a new gasket and new oil pan again. I've already replaced the filter, filter seal, filler tube and top hat seal, fuel injectors, spark plug and wires, evap solenoid and canister, all vacuum tubes that were hissing, valve cover gaskets, (but I'm replacing them with the upgraded covers soon), intake manifold gaskets,oil pressure switch sensor, O2 sensors, air filters( the cabin one is a b**** because you have to cut an access and install a new plate, fair warning), coolant reservoir, on my 2008 Silverado 1500 that has 180,000 miles on it. I got more work to do, like coolant/water exchange tube mounts and head plug mounts, suspension, all brakes and rotors. It needs a new engine oil pan gasket and I got the new oil deflector and oil cooler tub cap gasket and O-ring too, but maybe I should get an oil pump for good measure and ask the dealership to install it since the warranty covers it anyway? I'm not gonna lie, I'm not a mechanic and don't know what I'm fully doing sometimes s, which is why I have a Haynes manual and consult my cousin and mechanic friends a lot, but I am having a ball! 😂😂. The only thing that scares me is when I was refilling my transmission with Castrol dexron 6 transmission oil, a quart of Castrol dexron 3 got added, or was it 2? Should I be worried? I was told it's not a big deal and they are backwards compatible, but I'm a stickler for details and instructions, unless otherwise needed in situations that don't show by the book repairs as an option.
10-4 bud, im sry its taken token? lol Nooo you sound like me when i got this 99 4.8 4x4 z85, was like welp here we go poor the truck is falling apart around me. family health and my own, moving forward, I have definitely red that dex cross ref. V or VI same I dont evern keep up with the Super Bowl Xs and Vs never got into it lol. I would just change the it again IMO but I would have done the same ...change it. lol I like burning money. hope its gone well. Love you guys that are still working on your own shit, take care!
Update : the new pan has seemed to have done the trick and they said not to worry since I used dexron 3 since dexron 6 is backwards compatible. I drained and refilled it and it seems okay.
Can a shift solenoid cause a hard shift in low rpm’s when in 1st gear going to 2nd? I have this problem it has a transgo hd2 shift kit, servo, new transmission fluid filter, 1-2 accumulator, I’ve tried a new tps sensor and still shifts hard in 1st gear?
Have trouble on my 05 Silverado 2500 4l80 hard shifting , ive replaced the entire valve body components and its still hard shifting any advice before rebuilding
What servo size do you have in it? Some corvette servos will shift super hard. Ive also ordered corvette servos and the came with the wrong seals that were rubber not scarf cut.
My 2015 Silverado does 1-2 hard shifts , I discovered that my engine moved when switching from parking to drive to reverse etc , and changed the motor mounts and it helped but you can still feel it , I read one of your comments , you think u joints can cause it ? Because my truck starts shaking when going 75mph to 85
Sry im not gettin notifications now. Smh Could vary well be, I'm currently working on the front drive shaft. Been a little wet on east coast of FL lol. Mine t case is the np249 told from the diesels smh lol
lets say its better, im not going to lie it seems to shift hard but in a good way? i have found that my fuel pressure is low 40s and 50s might have a helping hand in the smoothness between shifts. hope this helps.
so like on the hwy? there is a few tech bulletins about rough rides at hwy speeds and a class action about vibrations b/c of the driveshafts not being properly balanced.
Seems to be happening when I speed up to pass someone but yes mostly highway , no vibration though just a super hard violent shift that literally puts your chest in the steering wheel
@@terryarthurs548 ok i'm having this happen too, i haven't checked yet, but we think its the torque converter, its not locking up like it should. mine feels like loss of power almost and the suspension flops, IN MY CASE, we think its the TC not locking up can is going to damage the rest of the trans. one of my other videos talks about the TCC valve, which can give more pressure for a better shift. maybe this helps?
NOT the Same, Im going into work now I can reply with honest info after I get there. thisshould help get started www.gmtransmissionparts.com/4l60e-Filter-Pan-Style-Guide/
About a year ago..I changed mine from plastic (factory) to metal material....it DIDNT fix it for me...i came across a video that said the Alternator is the fix for the hard shift 1-2. I find that odd
Try the grounds first you have two up front behind the headlights one big issue I have with my system was the ones under driver door, and the other by the gas tank, clean them and do the BIG3, Ill show you mine set up if you like
@@dylanberg7110 i dont really think i did, i followed the rabbit whole and im at Torque Converter now but at that damn point...right?? the other videos i have showed other options...i could have made a series but i dont know what im doing on YT. thank you for watching it tho. and good luck with yours i understand how frustrating it gets!
Didn’t work, replaced it twice
I'm sry it didn't work. And I'm sry I didn't see your post. I hope you figured something out with it. I understand how frustrating it is. Precision Transmission on yt here have some fantastic info, if I get the money up I will be sending it to them!!!
Have you replaced the1&2 solenoids and the TCC
If replacing the 1-2 accumulator piston/housing, go ahead and obtain the Sonnex electrical connector blocker bracket. This keeps the transmission's internal electrical harness connector from being pushed to the inside of the transmission. My 1993 lost all the retaining finger clips (five of them) due to 30 years of plastic degradation.
I dropped the pan, replaced the whole harness, and all the solenoids while in there...
And if the truck makes it another thirty years and the new harness plug loses its retaining fingers? The Sonnax bracket will keep it in-place.
I have a hard shift in my chevy 93 k1500. It's not like crazy violent or anything like you mentioned in your 2 videos I watched. It's just enough to bug me so I am going to try fix this 1-2 hard shift issue. It shifts flawlessly in the other gears so I tried just switching the tps and that actually helped a little bit. Thanks for the video. I've seen more then a few people with this issue on youtube. Never have I experienced it myself till I bough a used truck
Hi, did the new 1-2 accumulator fix the hard shift for you? Ive had the same problem changed out 3 tps sensors. 1 of them made it work a hair better. but still hard shift, i changed all 4 solenoids no luck, Im about to try this if it worked for you.
@@puppet-m I will be changing it when my parts come in from rockauto and Amazon. I really hope it fixes the hard shift. I don't want to have to pull the transmission and try do a rebuild myself but I will if I have to. I ordered the sonax 1-2 pinless accumulator, a & b shift solenoids, wix filter and rubber pan gasket. I'm kinda thinking it's the forward accumulator though also. But I don't want to have to take the valve body out and do all the other required work. It's doable just going to try this fix first. Truck is due for new atf anyways and filter. I have 93 chevy with a 4l60e but it's kind of the half way point in between being fully electronic and half hydraulic. Old style. The in between point before having full electronic. If that makes sense lol 😆
Look into knock sensors! Fixed the wires to mime and 2 much better now
I just bought my first truck and it’s shifting just a lil rough from 1-2 all the other gears fine I got 2 transmission selinoids I’m gonna do an
Thanks for the video. I was looking for specific info on the springs. Ithink Im going to re-use the stock springs along with the sonnax piston. I dont want a overly hard shift
hope it works out bud!
I ordered a new one and gonna go ahead and replace it with a new gasket and new oil pan again. I've already replaced the filter, filter seal, filler tube and top hat seal, fuel injectors, spark plug and wires, evap solenoid and canister, all vacuum tubes that were hissing, valve cover gaskets, (but I'm replacing them with the upgraded covers soon), intake manifold gaskets,oil pressure switch sensor, O2 sensors, air filters( the cabin one is a b**** because you have to cut an access and install a new plate, fair warning), coolant reservoir, on my 2008 Silverado 1500 that has 180,000 miles on it. I got more work to do, like coolant/water exchange tube mounts and head plug mounts, suspension, all brakes and rotors. It needs a new engine oil pan gasket and I got the new oil deflector and oil cooler tub cap gasket and O-ring too, but maybe I should get an oil pump for good measure and ask the dealership to install it since the warranty covers it anyway? I'm not gonna lie, I'm not a mechanic and don't know what I'm fully doing sometimes s, which is why I have a Haynes manual and consult my cousin and mechanic friends a lot, but I am having a ball! 😂😂. The only thing that scares me is when I was refilling my transmission with Castrol dexron 6 transmission oil, a quart of Castrol dexron 3 got added, or was it 2? Should I be worried? I was told it's not a big deal and they are backwards compatible, but I'm a stickler for details and instructions, unless otherwise needed in situations that don't show by the book repairs as an option.
10-4 bud, im sry its taken token? lol
Nooo you sound like me when i got this 99 4.8 4x4 z85, was like welp here we go poor the truck is falling apart around me. family health and my own, moving forward, I have definitely red that dex cross ref. V or VI same I dont evern keep up with the Super Bowl Xs and Vs never got into it lol. I would just change the it again IMO but I would have done the same ...change it. lol I like burning money. hope its gone well. Love you guys that are still working on your own shit, take care!
Update : the new pan has seemed to have done the trick and they said not to worry since I used dexron 3 since dexron 6 is backwards compatible. I drained and refilled it and it seems okay.
@@fatalstreet1650 don't give up, it's all worth the fight in the end!
Can a shift solenoid cause a hard shift in low rpm’s when in 1st gear going to 2nd? I have this problem it has a transgo hd2 shift kit, servo, new transmission fluid filter, 1-2 accumulator, I’ve tried a new tps sensor and still shifts hard in 1st gear?
Have trouble on my 05 Silverado 2500 4l80 hard shifting , ive replaced the entire valve body components and its still hard shifting any advice before rebuilding
You think this would be the problem when take off after a stop and it kicks into second gear theres a hard shift
yes and also look at u joints plus yoke mine needed to be replaced but 4x4 and other HD crap on my 1500
sry..i had a loud knock and hard shift
What servo size do you have in it? Some corvette servos will shift super hard. Ive also ordered corvette servos and the came with the wrong seals that were rubber not scarf cut.
Can this repair fix hard downshifting as well?
I'm wondering the same thing. Just got a 2016 LT 1500 and it's having a slightly rough downshift from second down to first.
Would this be the correct part for a 2008 gmc sierra 2wd i have a deep oil pan
Should be, i would check with a local trans shop, or parts store. just match up part#s. my truck is 99 silverado 4.8 4x4 LS. 4l60e
My 2015 Silverado does 1-2 hard shifts , I discovered that my engine moved when switching from parking to drive to reverse etc , and changed the motor mounts and it helped but you can still feel it , I read one of your comments , you think u joints can cause it ? Because my truck starts shaking when going 75mph to 85
Sry im not gettin notifications now. Smh
Could vary well be, I'm currently working on the front drive shaft. Been a little wet on east coast of FL lol.
Mine t case is the np249 told from the diesels smh lol
Did this fix the hard shift
lets say its better, im not going to lie it seems to shift hard but in a good way? i have found that my fuel pressure is low 40s and 50s might have a helping hand in the smoothness between shifts. hope this helps.
Doubt it, changed mine twice and still shifting hard to the point it broke both motor mounts
My 2012 sierra does it at all speeds mostly at high speeds, diagnoses cant find anything wrong
so like on the hwy? there is a few tech bulletins about rough rides at hwy speeds and a class action about vibrations b/c of the
driveshafts not being properly balanced.
Seems to be happening when I speed up to pass someone but yes mostly highway , no vibration though just a super hard violent shift that literally puts your chest in the steering wheel
@@terryarthurs548 ok i'm having this happen too, i haven't checked yet, but we think its the torque converter, its not locking up like it should. mine feels like loss of power almost and the suspension flops, IN MY CASE, we think its the TC not locking up can is going to damage the rest of the trans. one of my other videos talks about the TCC valve, which can give more pressure for a better shift. maybe this helps?
Well if I can get mine fixed I'll share what it was
@@terryarthurs548 man good luck bud, hope to hear man!
2014 Silverado violent hard shift from 1-2? Any suggestions?
Have you got it fixed yet same issue here
@@danielzuniga8275did you find the issue same problem
Do you know if the shallow pan 4l60e has the same part number ? Or are they completely different transmissions on the Inside ? Cheers
NOT the Same, Im going into work now I can reply with honest info after I get there. thisshould help get started www.gmtransmissionparts.com/4l60e-Filter-Pan-Style-Guide/
What transmission is this?
4L60E 4x4 NBS 99-02 body truck
So did it get rid of hard shit my 07 chevy silverado is shifting hard into second
About a year ago..I changed mine from plastic (factory) to metal material....it DIDNT fix it for me...i came across a video that said the Alternator is the fix for the hard shift 1-2. I find that odd
@@htown4010 i find that real odd to im just gonna have my transmission rebuilt
Try the grounds first you have two up front behind the headlights one big issue I have with my system was the ones under driver door, and the other by the gas tank, clean them and do the BIG3, Ill show you mine set up if you like
@@fatalstreet1650 yeah
@@fatalstreet1650 following up....were you able to find the fix? Or did you end up rebuilding the transmission?
You didn’t fix anything.
neither did you
Fair enough
@@dylanberg7110 i dont really think i did, i followed the rabbit whole and im at Torque Converter now but at that damn point...right?? the other videos i have showed other options...i could have made a series but i dont know what im doing on YT. thank you for watching it tho. and good luck with yours i understand how frustrating it gets!
@@fatalstreet1650 rabbit whole indeed brother!!..
larry