alero 2.4 1999

[eastern]

hello

We just found the probem what might be the reason of the shaking , today one of the rod bearings gave up and it is ratteling now.

I was just lucky it happend when i stood still and i shut off the car the dealer tells me it is the bearing of the fourth piston.
He read the computer again but no faultcodes so he said that for now the engine itsef can be ok.

So we will remove the cartepan tonight maybe and see what the damage is if it can be repaired with a bearing we do it and maybe i trade in the car for another car.

the ast option is to scrap the car but i hope not we will see

[GA_turbo]

I was going to say that i could be a bent valve, a very slight bent valve can cause the same problem like you were describing ( shaking at idle and smoth over a 1000 to 1100 rpms )

[eastern]

The motor is finished , the bearings are damaged but not broken but when we looked better and removed one is was clear.

the crank axel was eaten away , the bearing did not get oil , to repair it it means to replace the complete crank , pushrods and bearings.
There might be more damage because there are metal shavings in the oil.

So i sold the car for 600 euros and i am looking for something else and hope better luck next time