2007 Pontiac G6 Shifting Trouble

Tiny
PATSYRIVERA
  • MEMBER
  • 2007 PONTIAC G6
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 71,000 MILES
I have a 2007 Pontiac G6 that I bought used a little over a year ago. Recently it began shifting hard and giving trouble code P0014. I replaced the Cam sensor and it ran fine for about 5 days. It's now shifting hard again and giving the same code of P0014. Any ideas?
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Monday, July 11th, 2011 AT 5:04 PM

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Tiny
FACTORYJACK
  • EXPERT
If the hard shift and the code correspond, I would consider the problems to be related. Have you verified the oil level is full? It is possible that you have some debris in, or a faulty cam actuator solenoid. Is this truly a 2.4L four cylinder engine? I will attach the code chart for the P0014 for a 2.4.

DTC P0010, P0011, P0013, or P0014

Diagnostic Instructions

Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

Review Strategy Based Diagnosis for an overview of the diagnostic approach.

Diagnostic Procedure Instructions provides an overview of each diagnostic category.

DTC Descriptors
DTC P0010: Intake Camshaft Position (CMP) Actuator Solenoid Control Circuit

DTC P0011: Intake Camshaft Position (CMP) System Performance

DTC P0013: Exhaust Camshaft Position (CMP) Actuator Solenoid Control Circuit

DTC P0014: Exhaust Camshaft Position (CMP) System Performance

Diagnostic Fault Information

Circuit

Short to Ground

High Resistance

Open

Short to Voltage

Signal Performance

Intake CMP Actuator Solenoid Control

P0010

P0010

P0010

P0010

P0011

Intake CMP Actuator Low Reference

--

P0010

P0010

--

--

Exhaust CMP Actuator Solenoid Control

P0013

P0013

P0013

P0013

P0014

Exhaust CMP Actuator Low Reference

--

P0013

P0013

--

--

Circuit/System Description

The camshaft position (CMP) actuator is attached to each camshaft and is hydraulically operated in order to change the angle of the camshaft relative to crankshaft position (CKP). The CMP actuator solenoid is controlled by the control module. The control module sends a pulse width modulated 12-volt signal to a CMP actuator solenoid. The solenoid controls the amount of engine oil flow to a CMP actuator. The CMP actuator can change the camshaft angle a maximum of 25 degrees. The control module increases the pulse width to accomplish the desired camshaft operation.

Conditions for Running the DTC

P0010 and P0013

The engine is running.

P0011 and P0014

The engine speed is more than 1,350 RPM.

The engine control module (ECM) has enabled the CMP actuator.

The system voltage is more than 11 volts.

DTC P0011 and P0014 run continuously when the above conditions are met.

Conditions for Setting the DTC

P0010 and P0013

The ECM detects an open, short to ground, or a short to voltage on the high control circuit or an open on the low reference circuit for more than 0.25 second.

P0011 and P0014

The control module has enabled the CMP actuator.

The difference between the desired CMP actuator angle and the actual CMP actuator angle is more than 6 degrees.

The CMP actuator is steady for 3 seconds.

The condition is present for 13.5 seconds.

Action Taken When the DTC Sets

DTC P0010, P0011, P0013, and P0014 are Type A DTCs.

Conditions for Clearing the MIL/DTC

DTC P0010, P0011, P0013, and P0014 are Type A DTCs.

Circuit/System Verification
Ensure the vehicle has the proper oil viscosity.
Observe the engine oil level. The engine oil level should be within the operating range.
Allow the engine to reach operating temperature.
Increase the engine speed to 1,500 RPM.
Command each CMP actuator to 25 percent. The CMP actuator angle desired parameter should match the CMP actuator actual parameter.

Circuit/System Testing
With the ignition ON, measure for battery voltage between the CMP actuator solenoid high control of the affected actuator and a ground.

?

If less than battery voltage, test the CMP actuator high control circuit for an open, short to ground. If the circuit tests normal, replace the control module.

Connect a test lamp between the CMP actuator solenoid high control of the affected actuator and a good ground. The test lamp should not illuminate.

?

If the test lamp illuminates, test the CMP actuator high control circuit for a short to voltage. If the circuit tests normal, replace the control module.

Command each CMP actuator solenoid between 0-50 percent. The test lamp should turn ON and OFF.

?

If the test lamp does not turn ON and OFF, test the CMP actuator high control circuit for high resistance. If the circuit tests normal, replace the control module.

Connect a test lamp between the low reference circuit of the CMP actuator solenoid of the affected actuator and battery voltage. The test lamp should illuminate.

?

If the test lamp does not illuminate, test the low reference circuit for an open, high resistance. If the circuit tests normal, replace the control module.

Determine that the vehicle has the correct engine oil. Refer to Service and Appearance Care in the owner's manual.

?

If the engine oil life system monitor displays the Change Oil Soon message, the engine oil is more than one year old, contains additives, or is not the correct viscosity, change the oil.

Test the engine oil pressure. Refer to Oil Pressure Diagnosis and Testing.

?

If the oil pressure is low, correct the low pressure first.

Inspect each CMP actuator solenoid valve assembly for the following:

Torn screens

Debris on the screens

Debris clogging the oil ports

Missing screens

Oil seepage at the solenoid connector pins

Inspect for the following conditions:

Excessive timing chain play

Proper installation of the CMP actuator assembly

Component Testing
Measure the resistance of each CMP actuator solenoid valve assembly. Resistance should be between 8-12 ohms.
Connect a jumper wire between the CMP actuator low reference circuit at the solenoid and a good ground. Connect a fused jumper wire to the CMP actuator high control circuit at the solenoid. Momentarily touch the fused jumper to B+. Observe the spool valve inside the CMP actuator. The spool valve should move from fully closed to fully opened position.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for replacement, setup, and programming
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Monday, July 11th, 2011 AT 6:47 PM

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