WhiteFaleen2001

Here is another video. Anyone have ideas what it is? Car is turned on, and then held at 1500 rpms

dawson1112

Sounds rotational to me, loose torque converter bolt, or bad throw out bearing.
Timing chain flopping around.

I would get a mechanics stethoscope or a short piece of broom handle held to your ear and start poking around every thing till you can find the loudest point.

petrock

+1… Its essentially what I said in my first post in this thread way back on 06-22-2013. We won’t be able to diagnose this problem for you. Video cameras don’t make good sound diagnostic tools. Its hard to get audible directionality from a video. You will have to either pay someone to diagnose this for you, or poke around yourself and find it. Good luck...

WhiteFaleen2001

Alright thanks. I have someone checking it out tomorrow for me.

WhiteFaleen2001

Well I just wanted to update this for other people. My timing chain guide was shot and my tensioner needs replacing. I was able to catch it before it did major damage.

dawson1112

That's what I thought lol as per my first post.

WhiteFaleen2001

Second update. Shortly after getting the car back, the noise is still there. When talking with the shop they said they replaced what was clearly damaged. Now they want to charge $500 on top of what I have already paid to take another look at this noise...They said since it could be a lifter, we discussed a couple of possible solutions. We have seafomed the PCV and crank case. We have also added lucas heavy oil stabilizer as well has going to 10w30 oil. The guy at the shop said that this could quiet the lifter it is was the culprit. Unfortunately, the noise is still there, and even worse at idle. It is slightly better when driving, but for how long, remains to be seen. Does anyone have ideas of what is going on?

Sound seems to be loudest at the oil pan. Second loudest part seems to be coming from the back of the engine and maybe louder on the passenger side.

The knock seems to happen mainly around 2500 rpms.

WJL

It is so hard to determine whats wrong from a video but that dont sound like a rod knock. get someone to hold the rpm that it makes the nose at and disconnect the injector or spark plug wire or COP one by one if the nosie goes away it more than likely is a bad rod bearing. At this point from waht i heard i would guess its in the top end maybe a lash adjuster this is JUST A GUESS

WhiteFaleen2001

Tuesday night, it started sounded horrible. I haven't driven it since. This is the current sound from the engine...

WJL

Sorry but that sounds like a rod knock to me, if you disconnect the injector wire on each cyl or the plug wire although that may throw a code one at a time the knock will go away or at a minimum quite down if it does, it is a bad rod bearing. good luck