Question about 2007 Chevrolet Impala LS Sedan New Cars

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Reduced engine power on

Getting "service traction control" message. The check engine light is on and it feels like its trying to apply the ABS while sitting still. on the dash board it displays reduced engine power. Car doesnt run the same. please help?

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The traction control uses the speed sensor in the transmission and the wheel speed sensors to determine wheel spin. If a wheel spins braking is applied to it so that the power can be transferred to the other wheels. At some point the ECU detected a gross disagreement between the sensors and so as a precaution has entered into a limp home mode. On some systems if the fault is in error it can be cleared by putting the car into drive and moving forward a meter, putting in reverse and going a back a meter and doing this three times. If one or other of the sensors are faulty this process will not allow the error to be cleared. You need to check or have checked the error codes and the speed sensors.

Posted on May 28, 2010

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