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2006 pontiac g6 transmission shifting problem

Shifts hard after second gear. smooths out by 4 gear not sure what the problem is. after warm up it still shifts hard. its random, doesnt always do it somedays its fine other days it starts like that any suggestions? - Fluid is fine - temperature outside is not a factor - car has 102,000 on it seems to be a common problem that gm really should look at its pretty rediculious so many people have had this problem yet no solutions.

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  • matthewdiede
    matthewdiede May 15, 2012

    found out what mine was. it was the throddle body control sensor on the top of the tranmission. Every time you accelerate the sensor would read that i was basically flooring it and to counteract that it was shifting hard to make a firm shift. it was just reading incorrectly

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Posted on Jan 02, 2017

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  • 104 Answers

SOURCE: When i go from park

Sounds like you have a broken engine mount. Open the hood with the engine off and rock the car back and forth if you hear the clunk then you know you have a broken mount

Posted on May 25, 2011

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  • 335 Answers

SOURCE: 4 cyl. 2006 G6. P0106

you will need to some testing to islate problem

Turn ON the ignition, with the engine OFF.
Disconnect the MAP sensor.
Connect a voltmeter between the MAP sensor 5-volt reference circuit and a good ground.
Measure for a proper range of 4.8-5.2 volts between the MAP sensor 5-volt reference circuit and a good ground.
If the voltage is less than the specified range, then test the circuit for a high resistance. If the is normal, replace the ECM. If the voltage is more than the specified range, then test the circuit for a short to voltage. If the circuit is normal, replace the ECM.With the MAP sensor still disconnected, use the scan tool to observe the MAP Sensor parameter for the proper value of less than 12 kPa.
If the MAP Sensor parameter is more than 12 kPa, then test the MAP sensor signal circuit for a short to voltage. If the circuit is normal, replace the ECM.Connect a jumper wire between the MAP sensor 5-volt reference circuit and the MAP sensor signal circuit.
Use the scan tool to observe the MAP Sensor parameter for the proper value of more than 103 kPa.
If the MAP Sensor parameter is less than 103 kPa, then test the MAP sensor signal circuit for a high resistance. If the circuit is normal, replace the ECM.Turn OFF the ignition, and all electrical accessories. Allow sufficient time for the control module to power down before taking a resistance measurement.
Measure for a proper value of less than 5 ohms of resistance between the low reference circuit of the MAP sensor and a good ground.
If the resistance is more than 5 ohms, then test the circuit for a high resistance. If the circuit tests normal, replace the ECM.If the MAP sensor circuits test normal, then replace the MAP sensor.

Posted on Jun 08, 2011

  • 1 Answer

SOURCE: 2006 PONTIAC G6-TRANSMISSION JERKING

I have the same car and problem..i was told it was a sensor...which has been changed twice and still does it...i need a solution too

Posted on Jul 19, 2011

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