I have done a lot of researching on here pertaining to the noise I am hearing in my engine, but had a hard time finding a thread that encompassed all of the variables that I am looking for so I decided to post.
I purchased my 2000 Chevy S10 LS with the 4.3L V6 about 18 months ago. It was supposed to be a project but it did more sitting in the garage than anything else. It sat for about 4 months prior to me actually finding the time to work on it without being started.
There is a ticking noise coming from what SOUNDS like the lower half of the engine. The sound is more prominent on the drivers side and stays in sync with the RPM's. Based on some of the videos I've seen here, it sounds like a lifter, so maybe the sound is misleading and it is not in the bottom half. My initial thought is that it is not a rod or bearing because they usually make kind of a "sloppy" noise and not a clear tick like I am hearing (please keep in mind, I make no claims of being a mechanic at all, but this has been the case in my super-limited experience).
Here is a link to a video that sounds like what I have:
After running it for 10 minutes or so the sound dissipates and is completely inaudible from inside of the truck, but slightly noticeable from the outside. I have tried MMO but that didn't make a difference, and my last oil change I went to 5W-30 synthetic with no result. The oil pressure is perfect and and there are no oil/coolant leaks.
The vehicle has 88,000 miles on it and the previous owner kept it in pristine condition and supplied all of the maintenance records.
So, that being said, is it a possibility that I did some type of damage by not running it for 4 months? Could it be a lifter? Or should I just prepare for the death of this truck.
Also, considering I know very little about working on vehicles, would replacing the lifters be too difficult for me to embark on by myself if I decide to do it?
This forum is awesome and thanks for your thoughts!