Question about 2006 Chevrolet Silverado 3500

1 Answer

P0964 tranny jerks after vehicle gets warm, most of the time when pulling trailer with load on it. Won't change gears right (like it hangs in gear, once you turn vehicle off & restart it works again-Like it is reprogramming), already replaced 4 sensors in transmission.

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  • katie hartgrove Apr 15, 2013

    This is a duramax diesel engine. also shows codes P2563 & P0700

  • katie hartgrove Apr 15, 2013

    also a 4x4

  • katie hartgrove Apr 17, 2013

    Todd...Thanks for the info but where exactly is this located? (also its not in OD when towing :-))

  • Todd Arndt
    Todd Arndt Apr 17, 2013

    Happy to hear about not towing in OD, First thing I would do is change the Transmission Fluid to see if this will clean out the issue or for a little bit more money have the Valve Body cleaned and the Solenoids tested....



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  • Chevrolet Master
  • 2,044 Answers

I sure hope you are not Towing in OVERDRIVE...

If a P2563 is found, it may be caused by an unstable Solenoid Control Valve (SCV). Unstable SCV operation may be induced by engine debris or sludge. To diagnose an unstable SCV complete the procedure below.

Test the VPS (Vane Position Sensor) operation. Actuate the VPS plunger and monitor the sensor voltage on the Tech 2. The VPS body should be grounded during this test. Touch the brass body of the VPS to the turbo center housing to complete the ground. Voltage should go from 4.9v to 0.25v as the plunger is depressed. If the sensor operates correctly, go to next step, or replace the VPS as necessary.

Note: It's normal for voltage to jump back to 4.9v if the plunger is completely depressed.

Command turbo vane position from 10% to 90%, back and forth, several times. During each cycle, monitor the actual turbo vane position sensor reading. The vane position should reach the desired position, and hold steady. If vane position oscillates back and forth more than 5% before stabilizing at the desired position, replace the solenoid control valve.

Note: Debris or sludge build up in the SCV can cause the valve's stability to deteriorate. This can be aggravated by not following oil change intervals and/or extended idling in combination with use of biofuels.

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.

Posted on Apr 15, 2013


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Posted on Jan 02, 2017


Clint Smock

  • 4669 Answers

SOURCE: Transmission Problems

Is it missing reverse 2nd and 4th? If so it has a broken reverse reaction shell. They aren't too hard to replace

Posted on Mar 01, 2009

Jack Hunter

  • 139 Answers

SOURCE: transmission problems

One of the solenoids in the transmission is acting up go to a transmission shop and have them code the transmission. Some repair shops can also check your transmission if they have the right Diagnostic tool.

Posted on Jul 05, 2009


  • 19 Answers

SOURCE: Transmission shifts into 1st gear as it should but

possiblity there could be a sensor, or you could have a valve sticking or going bad inside the transmission. good luck

Posted on Nov 30, 2009


frank thomas wilson

  • 10319 Answers

SOURCE: abrupt gear change of automatic transmission

The shift solenoid in the transmission has a fault with the power train computer or visa versa. A scan of the computer codes will find your fault. Auto Zone will perform a scan free of charge just for asking

Posted on Feb 11, 2010


Ben Norgaard

  • 257 Answers

SOURCE: transmission shifts but hesitates from 2nd to 3rd

Just had the same thing happen to me. You have wires in your transmission that may have broke. Your external wire harness needs to be replaced. The shop just charged me $700 for the fix. Ignore the sensor for now, it is trying to tell you about the wires. I would take it to a shop for the fix. Your transmission will need to be pulled apart to access the wires. The wires that are broken control when your automatic transmission shifts. If they break, your transmission will not shift properly. Please feel free to ask any questions, I am happy to help.

Posted on May 06, 2011

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