2nd gear is not right (NOT FIXED, NEED GEARHEADS, LOT O PICS
#31
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Originally Posted by randman1
What'* the story with the subframe? Paint? POR-15?
That tranny stuff goes way over my head. Dad has some talent.
That tranny stuff goes way over my head. Dad has some talent.
yeah he loves painting so im sure thats it...i have no clue honestly...its all dirty by now anyways...
yeah...i love the pics with all the compartments...no idea what it does...but it looks complicating
#33
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Originally Posted by 2000SilverBullet
Looks like Dad is a Mechanic with a very nice shop. :P
I can see someone tried to jack up your car using the oil pan.....or you like to jump tracks like someone else I know.![Wink](https://www.gmforum.com/gm/images/smilies/icon_wink.gif)
I can see someone tried to jack up your car using the oil pan.....or you like to jump tracks like someone else I know.
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only in the lumina days...i drive a grandma car now....
#34
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who knows who is actaully looking at this post anymore...hopefully all the right people...
tonight, me jason (bonnememn) and nate (lakevillessei) took a ride in my car with its redone tranny...
they noticed it was smooth, until WOT...
we found a way to better describe the problem. when you punch it, right before it shifts into 2nd, the engine throttle goes down making way for the shift, but the shift is delayed, and then the engine throttle goes back up, thinking it downshifted, and once the throttle is back up, it shifts, HARD, cuz the engine is running WOT...
any ideas? electrical?
tonight, me jason (bonnememn) and nate (lakevillessei) took a ride in my car with its redone tranny...
they noticed it was smooth, until WOT...
we found a way to better describe the problem. when you punch it, right before it shifts into 2nd, the engine throttle goes down making way for the shift, but the shift is delayed, and then the engine throttle goes back up, thinking it downshifted, and once the throttle is back up, it shifts, HARD, cuz the engine is running WOT...
any ideas? electrical?
#35
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Originally Posted by harofreak00
they noticed it was smooth, until WOT...
we found a way to better describe the problem. when you punch it, right before it shifts into 2nd, the engine throttle goes down making way for the shift, but the shift is delayed, and then the engine throttle goes back up, thinking it downshifted, and once the throttle is back up, it shifts, HARD, cuz the engine is running WOT...
any ideas? electrical?
we found a way to better describe the problem. when you punch it, right before it shifts into 2nd, the engine throttle goes down making way for the shift, but the shift is delayed, and then the engine throttle goes back up, thinking it downshifted, and once the throttle is back up, it shifts, HARD, cuz the engine is running WOT...
any ideas? electrical?
One thing is, is it doesn't do it in the 2-3 shift under WOT. I don't know if that'* because acceleration is less up there or not, but it was totally non-existant at the other shift point. We shoulda tested the 3-4 shift... Can 2nd gear bits and bolts (bands, gears, etc) be torn up enough to cause this delay, yet be fine under normal conditions?
#36
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Sticky shift solonoid. That'* the most likely. 75% odds. Try running a tranny flush product through it for about 500 miles, then do a full trans flush/filter/pan, etc. Your shift solonoid may be getting lacquered up. Hope it'* that, if the solonoid itself is weak, it may have to be replaced.
Edit:
Let me clarify a bit. There are two types of shift delays possible. Electrical (weak solonoid) and mechanical. Mechanical can be the sticky solonoid, but other things as well including a worn 2nd gear. Mine did that for awhile before it went boom. That'* all the crud that was in my pan.
Edit:
Let me clarify a bit. There are two types of shift delays possible. Electrical (weak solonoid) and mechanical. Mechanical can be the sticky solonoid, but other things as well including a worn 2nd gear. Mine did that for awhile before it went boom. That'* all the crud that was in my pan.
#37
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Originally Posted by BonneMeMN
Don't downshift to save your brakes.
Only does anything on real big hills, and only should be done on manual cars on a regular basis.
No automatic should be "shifted manually". You can't shift better then the PCM calls for.![Roll Eyes](https://www.gmforum.com/gm/images/smilies/rolleyes.gif)
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No automatic should be "shifted manually". You can't shift better then the PCM calls for.
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Originally Posted by opensourceguy
Here'* what is bad. If you downshift an auto, lets say from 3rd to 2nd, and you are going 80mph. Well, that is too high, and your tranny will NOT shift into 2nd, until the car slows down [at least mine does this, yours may just stay in 3rd, mine just drops out of gear]. Then, transmission damage may occur. As long as you aren't doing this, then all is well. Just be careful with those free revs.. like dropping 3rd to 1st going 40mph. That'll bite cha. I downshifted my auto, but not beyond when slowing down for a stop sign/light, and going 15-25mph, and dropping it in first. Made the car slow down a helluva lot faster, and since my brakes suck, that'* always a good thing
Originally Posted by LakevilleSSEi
No. Downshifting actually causes unecessary wear in the valve body. There is a rod in the valvle body that'* operated by the shift linkage, and it'* in a bored out area....Well the friction of moving that back and forth all the time elongates that bore....and let'* fluid flow where it shouldn't, and you could just either get an oversized rod and o-rings or get a new valve body. Most shifting bores only last for about 100 some k anyways
</rant>
anyhew, i'll pull open the book tomorrow to see what i can see, but my instinct is with willwren on this one. it sounds like a sticking solenoid, but again, i'll dig in to the manual tomorrow and see what i can see.
<edit> just to make sure it'* clear here... you will NOT do any damage to your transmission by downshifting. really. seriously. honestly. all you're doing is moving a small valve (the manual shaft valve) to a different position. the transmission fluid moves a little further down the bore. and creates pressure on the pressure plate. which tells the pcm where your shifter is pointing. that in turn will cause a clutch (usually) to engage that wasn't engaged before. and you're not going to cause extra wear and tear, so please stop telling people that it will.
<edit x2>
re-reading this, sorry if any of it came off rude, it'* just frustrating sometimes to hear a lot of mis-information that makes people fear their transmission.
have i mentioned that downshifting manually will not hurt the transmission?
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p.*. nice lift! i need to get one of those. or maybe a garage first... or maybe a house before that...
#38
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I should clarify something I said, downshifting a transmission itself doesn't hurt it, but the effects of running higher in the gear, etc might. Your heating it up more, and putting a higher load on it when going to a significantly lower gear for downhills. Some places you have to, but on every hill in town (mankato area is hilly) you'll be running hotter overall IMO.
Andrew, what'* the deal behind they silly shiney and clean subframe? Did he clean it up and paint it? Looks neat.
Andrew, what'* the deal behind they silly shiney and clean subframe? Did he clean it up and paint it? Looks neat.
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#39
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Originally Posted by BonneMeMN
I should clarify something I said, downshifting a transmission itself doesn't hurt it, but the effects of running higher in the gear, etc might. Your heating it up more, and putting a higher load on it when going to a significantly lower gear for downhills. Some places you have to, but on every hill in town (mankato area is hilly) you'll be running hotter overall IMO.
Andrew, what'* the deal behind they silly shiney and clean subframe? Did he clean it up and paint it? Looks neat.![Wink](https://www.gmforum.com/gm/images/smilies/icon_wink.gif)
Andrew, what'* the deal behind they silly shiney and clean subframe? Did he clean it up and paint it? Looks neat.
![Wink](https://www.gmforum.com/gm/images/smilies/icon_wink.gif)
yeah he loves painting so im sure thats it...i have no clue honestly...its all dirty by now anyways...
yeah...i love the pics with all the compartments...no idea what it does...but it looks complicating
yeah...i love the pics with all the compartments...no idea what it does...but it looks complicating
#40
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Originally Posted by BonneMeMN
I should clarify something I said, downshifting a transmission itself doesn't hurt it, but the effects of running higher in the gear, etc might. Your heating it up more, and putting a higher load on it when going to a significantly lower gear for downhills. Some places you have to, but on every hill in town (mankato area is hilly) you'll be running hotter overall IMO.
Andrew, what'* the deal behind they silly shiney and clean subframe? Did he clean it up and paint it? Looks neat.![Wink](https://www.gmforum.com/gm/images/smilies/icon_wink.gif)
Andrew, what'* the deal behind they silly shiney and clean subframe? Did he clean it up and paint it? Looks neat.
![Wink](https://www.gmforum.com/gm/images/smilies/icon_wink.gif)
![Smile](https://www.gmforum.com/gm/images/smilies/smile.gif)
and it'* great in the snow for slowing down...
and yeah, that subframe looks sweet...