Auto center wheels & forces

A while back there was a post with a way to force wheeled vehicles to auto center their wheels ( i suppose it works for the other types, since its in vehicle.cc ), it goes along the lines of

// Steering   
   if (move != &NullMove)
      {
	        if(move->yaw )
			{
			        F32 y = move->yaw;
					mSteering.x = mClampF(mSteering.x + y,-mDataBlock->maxSteeringAngle,
					      mDataBlock->maxSteeringAngle);      
					F32 p = move->pitch;      
					mSteering.y = mClampF(mSteering.y + p,-mDataBlock->maxSteeringAngle,      
					      mDataBlock->maxSteeringAngle);
	      }      
		  else      
		  {      
				mSteering.x *= 0.7;
				mSteering.y *= 0.7;
				      
	     } 
	}   
	else   
	{      
	mSteering.x *= 0.7;
	mSteering.y *= 0.7;
	      
}

The wheels center themselves alright, but it seems that after making a turn, the forces from the turn cause the car to keep turning, though the wheels are pointed straight. I was thinking that updateforces() would help, but theres zero code in there. So anyone know why im still turning, even though the wheels are pointed straight? Is this just a hack on the animation? Any help is appreciated.
Ryan