Oh boy, here we go. I was just on here asking some questions about regular car maintenance, because I would ideally like to repair my car myself. I originally just planned to change the spark plugs in my 2003 Lexus ES300 with 180,000 miles on it but since it's such a pain to do all of them (the intake manifold needs to be removed, I decided to replace the valve cover gaskets as well for both banks. After reassembling everything it ran fine (except for the camshaft position sensor, I accidentally ripped the wires and plan to fix it soon) with the exception of hearing a metallic whirring or grinding at 2500 RPMs coming from the second cylinder bank (the front one), at the far right side (cylinder six). I can't hear the sound at any other RPMs. I can also smell something like a metallic burning smell when I shut the car off. I know I definitely messed something up and to me it seems like it might something to do with valves.
Sorry to hear about this. Here's my recommendation:
- When you're rested and undistracted, trace all your steps. Undo what you've done, check components, confirm steps, observe anything (such as cracked spark plugs, loose or damaged harnesses and connectors, items plugged into the wrong connectors, etc).
- If you need to, and it might be very useful, get a consumer subscription to alldata for your vehicle, and download schematics to help you trace what went wrong. This provides a map of how everything works. It might well save you hours of grief and expense.
Good luck.
Oh boy, that doesn't sound great. Do you have any clue yourself as to what it may be? I'm also now discovering a slight oil smell while at idle.
I have no idea what you did or didn't do. How can anyone say anything without seeing what's been done?
Again, take your time, have patience, get the schematics and retrace what you've done.
Either you do this or pay a diagnostician to do this.
Well, I'm definitely upset, at myself anyway, but thank you anyway.
If you are referring to the right side as form the driver's seat (passenger side is less confusing) the noise could well be coming from one of the accessories, serpentine belt or tensioner.
Either way, you (well, an experienced mechanic can - we'll see about you) would take a "mechanic's stethoscope" ($10 at Harbor Freight) and be able to pinpoint what was making the sound. A too-old hand like Scotty might use a long screwdriver held against the ear.
