Hello,

it is nothing sirious, I hope, but when I give some speed the engine sounds like it is scratching or better rattling. I thought first maybe a loose exhaust clamp, but it isnt.

Does anyone have any idea what this can be and how I can fix it. It is annoying.

Thank you

1998 Lumina 170.000 miles

 

if it sounds like a coin hitting a metal surface with a little force then you may have a bent or loose push rod... this is serious and needs to be taken care of immideatley, push rods usually start to warp or become loose if the car hasnt been maintained properly via oil changes or if the car has been in a accident or overheating rapidly. if the problem goes ignored you could blow your motor.

 

It disappeared. Don't know how.

 

its possible if the push rod was loose it could of jumped back into place. i would recomend checking it anyway just to be sure.

 

I will. THank you