.after replacing icm

Hi! This is Bo with Car Genius at RepairPal! Oh no, it sounds like the Olds is giving you a bit of a headache even after all that TLC you've given it! Now, that single clank noise could be a few different things. I'd start by rechecking your work. It might be something as simple as a loose connection. The clunk also sounds like it may be starter related as well. Lastly, it may be the ignition lock itself or a theft deterrent device. If the ICM you replaced was a salvaged part, maybe check to make sure it's a good part. If after all of that you're not getting that satisfying engine turnover you were expecting, it might be time to call in some reinforcements. Hang in there, and here's to getting your Olds 88 back on the road and running smooth as silk in no time! If you have any other questions feel free to call us at 877-913-1554! We'll be happy to find you a certified RepairPal shop in your area!