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2004 chevy colorado stoped shifting from 2nd to 3rd shifted

Customer Question
pretty hard before but now...
2004 chevy colorado stoped shifting from 2nd to 3rd shifted pretty hard before but now wont shift ar all. Fluids are all good.
JA: How old is the transmission? Have you noticed any leaking?
Customer: Nothing leaking at all
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: Yes i am. I have not tried anything yet.
JA: Anything else you think the mechanic should know?
Customer: I got a code u1026 u1000 u1064
Submitted: 1 year ago.Category: GM
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Answered in 3 minutes by:
8/23/2016
GM Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago
kalamykid
kalamykid, Shop Owner/ Tech
Category: GM
Satisfied Customers: 4,790
Experience: I HAVE OWNED MY OWN SHOP FOR OVER THREE YEARS. I HAVE THE TOOLS AND SOFTWARE TO ANSWERE ALMOST ANY Q
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If you get up to 45-50 mph and let off of the gas pedal, will it up shift to 4th?

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Customer reply replied 1 year ago
it will
GM Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago

When it should shift from 2nd to 3rd, does it just hold on to second or does it go into neutral?

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Customer reply replied 1 year ago
When it hits second and i give it a some gas it just revs out to 5000 rev and 3 2 1 work fine if i manually shif it. Only in auto it wont shift out of second revs out to 5000
Customer reply replied 1 year ago
I even it 6000 one time
GM Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago

Are you saying that second gear will not hold if you hit the gas hard?

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Customer reply replied 1 year ago
It holds just stays there and wont go to 3rd
GM Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago

Have you had any work done on the transmission in the last two years?

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Customer reply replied 1 year ago
Yea a full rebuild 3 years ago.
GM Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago

Do you know if they replaced the separator plate between the valve body and the case?

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Customer reply replied 1 year ago
I dont know honestly
Customer reply replied 1 year ago
I just know they replaced the valve body
GM Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago

From what you have told me it sounds like the number 7 check ball has either blown through the separator plate or has gotten stuck in the hole. You need to have the valve body pulled and have the plate inspected. I it has blown through or is stuck in the plate, replace it and to help keep this from happening again install a trans go jr. shift kit. The kit will not make the transmission shift harder, but will update the valve body to give you a much stronger transmission as well as one that will shift much better.

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Customer reply replied 1 year ago
Do i have to pull the transmition to do that. And what are the costs to take it in
GM Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago

No the trans does not have to come out to do this repair. A shop will charge you around $500.00 parts and labor.

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GM Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago

This is a job you can do yourself if you have a basic set of tools, a jack and 4 jack stands. And the instruction sheet that comes with the shift kit is very good so you do not have to worry about making any mistakes. You can get your parts from www.transtar1.com , for around $150.00 plus you will need about 8 quarts of fluid.

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Customer reply replied 1 year ago
Ok so what do i have to do im all ready to do it. Is there a youtube video or anything? I would rather do it myself
GM Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago

If you do this job yourself, get a tub of red trans jell to help you put it all back together.

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Customer reply replied 1 year ago
Do you know if there is a video to do it? Or what are the steps?
GM Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago

Order your parts from transtar you need to order a separator plate, the shift kit, and a tub of red trans jell.

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GM Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago

Once the parts come in, we can go over everything together on here.

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Customer reply replied 1 year ago
Ok so can you send me an email so i can talk to you again?
GM Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago

All you have to do is come back to this string and send me a message. I will get back to you aspa, and you will not have to pay again.

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Customer reply replied 1 year ago
is there a brand of parts i should order
GM Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago

All the parts you need will come from trans go. If you get them from trans star you should be able to get them by Wednesday.

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Customer reply replied 1 year ago
I cant find the parts!
GM Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago

I always call my orders in, let me set up an online account and I will get the parts numbers you need.

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GM Mechanic: kalamykid, Shop Owner/ Tech replied 1 year ago

did you call in your order or do you still need the part numbers of what you need to order. They just set up my account online.

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kalamykid
kalamykid
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Category: GM
Satisfied Customers: 4,790
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