Hey, sorry guys. Sorry I haven't updated in a bit, I've been busy enjoying the spring weather with the top off. My family and I have taken a ton of quick impromptu drives out through the farmlands lately just to enjoy the scenery. It's been awesome. We took a picnic out to Antelope Island (a large island in the Great Sale Lake that you can drive to) just this weekend and got caught in one heck of a summer rain storm! We laughed the whole way back while getting pelted with warm rain in a topless Jeep. It was a blast. (the funniest part was when I was so confused as to why the windshield wipers weren't working and then I finally realized it was because the water was on the INSIDE of the windshield! Lol!). Anyway, some responses and updates:
Ok, thanks. That's what I'm thinking too. It has only happened once since and it only happens for a second and then goes right back up. Now that I know where the sensor is located, I'm sure I bumped it when I was messing with the spark plug rail thing. I will check it out to see if I messed with the connection.
Ok, thanks for the input the too. It was freaking me out a bit since I had messed with some main bearings, but my nerves have calmed a bit now. I was kind of thinking the same thing about the Rislone. Can't imagine it's much different than SeaFoam really. Thanks!
Hey! Welcome aboard! This has been quite a journey, I hope you can find some answers for your problems here too. If you find anything that I haven't found yet, please post it here! I did change my timing chain which definitely helped the performance of the Jeep, but didn't clear up the knocking sound. I didn't expect it to since my knocking sound is coming from the rear of the engine whereas the chain is at the front. If your knocking sound is at the rear, then I would guess the chain is not the cause either. If you are going to change it and don't want to remove your radiator, get the pulley tool from Harbor Freight. It has a much shorter bolt that will fit in between the crank pulley and the radiator, the ones you can rent from O'Reilly and Autozone have a really long bolt and can only be used if the radiator is removed, assuming your setup is the same as mine.
Totally agree here. Mine definitely added to things, just wasn't the core issue (haven't found that yet).
Yep. This is the truth. Changed mine (glad I did), but the sound remains.
Update: I had to take it in to have a seal replaced on the transmission that was leaking. I had AAMCO take a look at things for a different problem I was having (lurching = solved = bad PCM/TCM), and they changed the shift solenoid thinking that was the problem. The seal they put in was leaking so they fixed it for me. So I finally got it back and I think I'm ready to start the next phase of investigation. Honestly guys, I'm leaning towards an exhaust leak, probably from the manifold itself. I found another video on YouTube of a guy with a really similar noise and it turned out to be an exhaust leak for him. So I think I will do the "shop-vac-in-the-tail-pipe" trick and see what I can find with a bottle of soapy water. I did some spying underneath and I think I can see a spot on the manifold, right at the rear, where it looks like exhaust has been escaping (black marks around the manifold). So it may blown a gasket, or maybe the manifold itself is cracked. That could explain why the sound is loud when the engine is cold and it almost completely goes away now when things warm up after a few miles. If the metal gets hot and expands and closes up the leak, that may explain it.
So I will try that and see what I find.
I think I will also take off the valve cover and see what I can find underneath, see if there is any play in the rockers, like you guys mentioned.
It's also time for another oil change to see if there is still glitter in the oil. I'm really hoping it will clear up after a few changes and it was just residual crap that was trapped in the carbon over 18+ years, possibly from the chain wearing. Although, the glitter definitely has a copper tone to it and I'm not sure what would be copper in the engine...
Send it to Blackstone Labs! They'll tell ya.