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4t65e hd problems

 
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Irish_alley
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PostPosted: Sat May 12, 2012 10:43 am    Post subject:  4t65e hd problems Reply with quote

I had a shutter about a week ago when I left a stop sign. Then it seams to be making slow gear changes, if I let it shift automatically. If I leave a stop in 1st then wait till about 2k to shift it will shift nice same for next couple gears. At highway speed 50mph on cruise the rpms will rise then fall only by 100 or so. If I leave a stop sign without completely stopping it will slip then shift hard. Monday I got a appointment with the transmission shop, he said he will look at it for free. But if its something simple that I can do I want to do. But just looking for suggestions on what it could be. To me, it seams more of a pressure issue

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00impala123
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PostPosted: Sat May 12, 2012 3:42 pm    Post subject:   Reply with quote

Sounds like the PCS is failing

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PostPosted: Sat May 12, 2012 5:53 pm    Post subject:   Reply with quote

Sounds just like mine a few months back. I had all the solenoids changed out and, knock on wood, it has ran great ever since.

heres a good how-to

http://helpwrench.com/forums/s.....PC-1-2-2-3

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Irish_alley
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PostPosted: Sat May 12, 2012 8:52 pm    Post subject:   Reply with quote

i was thinking it was the pcs also. just thinking do you think a flush would do any good? or since she has 80k should i just flush it anyway just for gp?

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PostPosted: Sat May 12, 2012 8:59 pm    Post subject:   Reply with quote

Don't do a pressure flush. That causes more problems from my experience. Changing the solenoids requires fluid drain anyways so change the trans filter while you're at it then just add new fluid.
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Irish_alley
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PostPosted: Sat May 12, 2012 10:12 pm    Post subject:   Reply with quote

from what i heard if you flush with high millage thats a no no, but since it only has 80k i didnt know if it was ok.

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00impala123
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PostPosted: Sun May 13, 2012 12:13 pm    Post subject:   Reply with quote

Don't flush it. If anything just drop the pan, change filter, and refill with new fluid.

80k is still high mileage for a flush. I had mine done at 58k and again at 114k. A little bit after 2nd flush started having some minor problems, Its been holding together so far but its gonna go eventually

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Irish_alley
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PostPosted: Sun May 13, 2012 6:35 pm    Post subject:   Reply with quote

theses things are just made to fail lol

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Irish_alley
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PostPosted: Mon May 14, 2012 3:37 am    Post subject:   Reply with quote

if i have to rip into this trans to replace the pcs is there anything else i should do since i have the side cover off?

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PostPosted: Mon May 14, 2012 1:45 pm    Post subject:   Reply with quote

Irish_alley wrote:
if i have to rip into this trans to replace the pcs is there anything else i should do since i have the side cover off?


Just like someone else said, replace the filter and fluid but that should be it including the solenoids. I would replace all of the solenoids while you have it apart. EPC, both shift solenoids, and TCC. Dont forget side cover and bottom pan gaskets - FelPro makes good ones. Usually a pan gasket comes with a new transmission filter but it is a very basic soft rubber gasket compared to a metal/rubber solid gasket FelPro makes.

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Irish_alley
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1991 Chevrolet Silverado


PostPosted: Mon May 14, 2012 2:30 pm    Post subject:   Reply with quote

you all will love this story, Ok so Saturday night I was driving the car and idk what came over me lol. But I pulled up beside a Harley at a red light. He looked at me I looked at him, and that was all that was said. Light turned green and we both took off. His bike was so loud I couldnít tell if I was spinning wheels or not, I love that sound of strait pipes lol. But I backed off at 70 and we were still neck and neck in a dead tie. But anyway I havnt really noticed the transmission problem since. So I took it into the shop like planed anyway, maybe something was on the computer. Well nothing was and he didnít feel any problems. So maybe I cleared something out idk, but I think its time to at least change filter maybe run something in the trans before

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VTSS
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2004 Chevrolet Impala
1994 Mitsubishi 3000GT


PostPosted: Mon May 14, 2012 7:44 pm    Post subject:   Reply with quote

Most of the time it goes away when you shut the car off, the next time you drive its fine. I had random slow shifts once every few months or so for about two years. Then one day the transmission slow shifted, max line pressure kicked in and the whole car shook whenever it shifted. Thats when I decided to hell with this and got the solenoids replaced.
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