When I accelarate from a standstill my car makes a creaking, almost cracking noise. I suspect the kingpins. In the years that I've owned the car I've never personally greased the fittings but perhaps some of the mechanics that took care of it did. I'm only driving this car now after it's been sitting for four years and I now hear this noise. I'm planning on greasing it but in the meantime how can I check for worn kingpins?