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Shifting

Tiny
JO A. HUTCHISON STILLWELL
  • MEMBER
  • 2011 CHEVROLET COLORADO
  • 2.9L
  • 4 CYL
  • RWD
  • AUTOMATIC
  • 112,000 MILES
The transmission does not want to shift. The rpm's will be about 3500 and shift, if I let off the gas it would shift sometimes too. We went to a parts store they suggested we replace the variable speed sensor. We did, but it still will not shift correctly.
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Friday, May 13th, 2016 AT 4:52 PM

8 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
So the truck does not shift till you let up on the gas some?
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Monday, May 16th, 2016 AT 9:42 AM
Tiny
JO A. HUTCHISON STILLWELL
  • MEMBER
  • 5 POSTS
Correct. We are going to try changing the filter and fluid.
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Monday, May 16th, 2016 AT 1:54 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
Then I would go to a exhaust shop and have them do a back pressure test. If you have a restriction in the catalytic converter that can cause that to happen. Really doubt a transmission service will do much for the problem your having. Have you checked for codes in the computer yet?
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Monday, May 16th, 2016 AT 2:41 PM
Tiny
JO A. HUTCHISON STILLWELL
  • MEMBER
  • 5 POSTS
No I do not have a computer to do that nor the money to have it checked.
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Monday, May 16th, 2016 AT 2:43 PM
Tiny
JO A. HUTCHISON STILLWELL
  • MEMBER
  • 5 POSTS
No don't. Have a computer to do that nor money to have it checked.
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Monday, May 16th, 2016 AT 2:43 PM
Tiny
SATURNTECH9
  • MECHANIC
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What state do you live in? Also has your check engine light come on with the engine running?
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Monday, May 16th, 2016 AT 2:59 PM
Tiny
JO A. HUTCHISON STILLWELL
  • MEMBER
  • 5 POSTS
Tennessee. And no the light does not come on.
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Monday, May 16th, 2016 AT 3:02 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
They do not do the free code reads at the auto parts store in your state? I know in California they no longer do. Also have the back pressure test done there is a good chance that is the cause.
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Monday, May 16th, 2016 AT 3:05 PM

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