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Is my trans going bad?

 
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03impala
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PostPosted: Thu Mar 31, 2011 9:50 pm    Post subject:  Is my trans going bad? Reply with quote

Got the car two weeks ago. Sometimes when you come off a stop sign, when you press the gas, you get a little bang, not everytime. The trans shifts well and very smooth. Is the trans going bad? Or could it be a motor mount or the dog bone. Thanks
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whitelightnin04MC
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PostPosted: Thu Mar 31, 2011 10:05 pm    Post subject:   Reply with quote

Does it hesitate to move and then you get the bang? If so, it's your pressure solenoid. Depending on how bad it is, you might need to replace it soon. I had PCS problems on my 2004 at 30k miles. The car is still running on the original PCS at 120k miles.

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PostPosted: Thu Mar 31, 2011 10:24 pm    Post subject:   Reply with quote

could also be loose cradle bolts. The engine sits in a cradle and is bolted to the unibody. Sometimes those bolts loosen up a bit.

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PostPosted: Thu Mar 31, 2011 11:08 pm    Post subject:   Reply with quote

whitelightnin04MC wrote:
Does it hesitate to move and then you get the bang? If so, it's your pressure solenoid. Depending on how bad it is, you might need to replace it soon. I had PCS problems on my 2004 at 30k miles. The car is still running on the original PCS at 120k miles.


how hard is this to replace? i might have the same problem

Alan

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PostPosted: Fri Apr 01, 2011 8:47 am    Post subject:   Reply with quote

I have been sorta curious about my own tranny. Every so often if im in a hurry if I back up and shift to drive if I don't wait like 2 secs it hesitates and shifts kinda hard and then lurches. Do I just need to slow down and give it a sec or do I have a problem?

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PostPosted: Fri Apr 01, 2011 9:34 am    Post subject:   Reply with quote

Rakshatiz wrote:
I have been sorta curious about my own tranny. Every so often if im in a hurry if I back up and shift to drive if I don't wait like 2 secs it hesitates and shifts kinda hard and then lurches. Do I just need to slow down and give it a sec or do I have a problem?


Slow down and give it time. Wink

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PostPosted: Fri Apr 01, 2011 11:38 am    Post subject:   Reply with quote

gopedxr7 wrote:
whitelightnin04MC wrote:
Does it hesitate to move and then you get the bang? If so, it's your pressure solenoid. Depending on how bad it is, you might need to replace it soon. I had PCS problems on my 2004 at 30k miles. The car is still running on the original PCS at 120k miles.


how hard is this to replace? i might have the same problem

Alan


The hardest part is getting the side cover off and out through the wheel well. You need to remove the driver's side suspension, lower the engine/trans and cradle, and then maneuver the cover out. After that, the solenoid should be accessible. Unplug, pull, and replace.

Suspension removed and engine/trans and cradle halfway down.



Solenoid is in the upper left corner.


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PostPosted: Fri Apr 01, 2011 9:58 pm    Post subject:   Reply with quote

whitelightnin04MC, do you have the part number? how long did it take to do? and did you need a alignment afterwards?

thanks

Alan

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PostPosted: Fri Apr 01, 2011 10:05 pm    Post subject:   Reply with quote

These trans also have a known valvebody issue with the tcc valves wearing the bores.
Also with bad harnesses in the valvebody losing connection.
So be careful with the harness if you handle it and dont break the clips.
You can verify the issue if its the EPC pretty easily with a scantool.
Or have an independant shop or trans shop verify it for you before you do all that work.
Offhand,if your easy the trans can take the bangin for quite awhile.
I know of a car that drove fine with this issue for 2-3years.
I dont reccomend it though,your just damaging hard parts more.
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whitelightnin04MC
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PostPosted: Sat Apr 02, 2011 7:04 am    Post subject:   Reply with quote

gopedxr7 wrote:
whitelightnin04MC, do you have the part number? how long did it take to do? and did you need a alignment afterwards?

thanks

Alan


I don't have the part number off hand. I ordered everything from TEP. If you work slow, you could probably get it done in a few hours or so. And yes, and alignment wouldn't be a bad idea. I didn't get one after doing mine and I don't see any abnormal wearing on the tires and the car doesn't pull.

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PostPosted: Sat Apr 02, 2011 8:15 am    Post subject:   Reply with quote

mostly just have to make sure your steering wheel is completely straight other wise you car will drive straight when you done but where ever you left the steering wheel, will be the way you drive staright now lol , if that makes any sense
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PostPosted: Fri Apr 08, 2011 5:54 pm    Post subject:   Reply with quote

whitelightnin04MC wrote:
Does it hesitate to move and then you get the bang? If so, it's your pressure solenoid. Depending on how bad it is, you might need to replace it soon. I had PCS problems on my 2004 at 30k miles. The car is still running on the original PCS at 120k miles.

Update...I think that is the issue with my car. Will I be able to pull a code with a OBII reader? It happens maybe 10% of the time, how soon do I need to have it fixed. What will happen if I wait?
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PostPosted: Wed Nov 30, 2011 6:47 pm    Post subject:   Reply with quote

whitelightnin04MC, how much transmission fluid did you loose in the process? i am debating either replacing this switch or replacing the tranny fluid and seeing if solves the problem. fluid is burnt

Alan

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