lambo

the car has a knocking sound when it is runnin the sound is on the drivers side. It never knocked intill we changed the plugs anyone know what could cause this sound.

86HOGT

Did you ge tthe wrong reach plug? They may be too long and hitting the tops of the cylinders. Check them with the old ones. That's te first thing I think of when I see that it started when you changed the spark plugs.

88GT40

make sure you replaced them with the same plugs and make sure they are gapped properly, also you should have checked and set your ignition timing i belive 10* is stock, however if you use higher grade gas you can bump up the timing as much as 14* to get more power. just make sure there is no pinging under increased load or wide open throttle

Justanother5.0

did you leave a ratchet in the engine bay?

heh.. naw... is it when you are accelerating or at idle or?

nemethjames1

not sure what it could be, maybe carbon fell off......... my car just started doing that the other day, after it gets warmed up i hear a good knocking noise, here it mostly in the center of the motor.... hope its not the block, maybe just a loose rocker or something....