When I am on the freeway I hear a noise that kind of sounds like a diesel engine. It seems a little louder if I give then engine a little more gas.


If I am parked and in neutral and rev the engine to 2500 rpm or more I do not hear the noise.

I currently have a check engine light for the crank sensor, but I have had that a year (procrastination!)

Could I just be hearing a ping, finally caused by the computer compensating for the crank sensor?

Could I need new spark plugs?

Does it sorta sound like your going over slight rumble strips? Does the noise also stop if you let off the gas for a second? Mine does that, seems to do it till it hits 4th gear (over drive) like it's searching for the right gear.

Hmm not quite like rumble strips.

It really sounds like a big semi-truck. It soft, my wife and brother can't hear it, only I can.