Engine Metal Clicking Sound..Help!!
Not sure what they did as a part of the troubleshooting!! Noise seems to be from the bottom of the motor. What's crazy is that even shop foreman of Lexus dealer said that he never heard that sound from any Lexus but yet they are not doing anything about it!!
Pole Position
Joined: Mar 2009
Posts: 367
Likes: 0
From: NJ
I have original PDF file(which has Repair Procedure pictures as well) from the lexus, but not sure how to post or link it, therefore I just copy and dragged it.
I am taking my car(with printed out papers) to dealer this friday for 10000mile service & above issues.
I am not 100% sure if this is the problem, but i wish it can help.
I will be happy to send you the original PDF files if you think you have the problem.
I am taking my car(with printed out papers) to dealer this friday for 10000mile service & above issues.
I am not 100% sure if this is the problem, but i wish it can help.
I will be happy to send you the original PDF files if you think you have the problem.
Lexus Test Driver
Joined: Jan 2003
Posts: 1,161
Likes: 0
From: RI
Glad you posted the video. My car has the same exact sound as yours. I did bring mine into Lexus (Inskip) and they said that it's normal. Glad I'm not the only one hearing that EXACT sound coming from my engine.
Pole Position
Joined: Sep 2006
Posts: 2,669
Likes: 223
From: DE
this is not normal, i drive my car sometimes 4 hrs long, non stop it does not make this noise. Lexus is just BS..ing
In my opinion it sounds like a faulty catalytic converter or gasket near the converter connecting to the manifolds or exhaust.
It also makes sense, since you mentioned the sound is heard when the car heats up. I'm no mechanic, but all the different types of metals used combined with heating (expanding) and cooling (contracting) at different rates may be the reason you are hearing a 'ticking/popping' sound.
If the catalytic converter is suspect, and not throwing a code or check engine light, make sure to keep track of your m.p.g's. This is typically a sign of something serious, if you are not getting mileage within the range of other members (of course driving habits/conditions vary
)
Best of luck and keep us updated!
It also makes sense, since you mentioned the sound is heard when the car heats up. I'm no mechanic, but all the different types of metals used combined with heating (expanding) and cooling (contracting) at different rates may be the reason you are hearing a 'ticking/popping' sound.
If the catalytic converter is suspect, and not throwing a code or check engine light, make sure to keep track of your m.p.g's. This is typically a sign of something serious, if you are not getting mileage within the range of other members (of course driving habits/conditions vary
)Best of luck and keep us updated!
Last edited by OG Member; Jun 24, 2009 at 08:26 PM.
It sounds like a loose valve to me. I would insist they check the valve lash. It does NOT sound normal at all.
Guys, these engines have shim type valve adjustments. They are NOT hydraulic as most car engines are. Because we have rocker arms, it is possible for a loose valve to make noise just like this. Bucket and shim engines never make noise, but it sounds like rocker arm clatter to me.
Guys, these engines have shim type valve adjustments. They are NOT hydraulic as most car engines are. Because we have rocker arms, it is possible for a loose valve to make noise just like this. Bucket and shim engines never make noise, but it sounds like rocker arm clatter to me.
