Shifting

2011 CHEVROLET COLORADO
112,000 MILES • 2.9L • 4 CYL • RWD • AUTOMATIC
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JO A. HUTCHISON STILLWELL
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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.
May 13, 2016 at 4:52 PM
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SATURNTECH9
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So the truck does not shift till you let up on the gas some?
May 16, 2016 at 9:42 AM
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JO A. HUTCHISON STILLWELL
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Correct. We are going to try changing the filter and fluid.
May 16, 2016 at 1:54 PM
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SATURNTECH9
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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?
May 16, 2016 at 2:41 PM
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JO A. HUTCHISON STILLWELL
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No I do not have a computer to do that nor the money to have it checked.
May 16, 2016 at 2:43 PM
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JO A. HUTCHISON STILLWELL
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No don't. Have a computer to do that nor money to have it checked.
May 16, 2016 at 2:43 PM
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SATURNTECH9
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What state do you live in? also has your check engine light come on with the engine running?
May 16, 2016 at 2:59 PM
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JO A. HUTCHISON STILLWELL
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Tennessee. And no the light does not come on.
May 16, 2016 at 3:02 PM
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SATURNTECH9
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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.
May 16, 2016 at 3:05 PM