Jamakan

So Ive had the car for a month now. Already changed the water pump under warranty. Now yesterday about to head home, turn on the car and all I hear from the engine is clank clank cling cling coming from the front of the engine. Basically sounded like the timing chain was hitting something. So I'm driving and called my guy at the dealer... While talking to him I hear the sound getting louder and almost like something coming loose inside there. I pull over at the gas station and it goes cling... Clang... And then nothing. As if whatever the chain was hitting broke off. And the sound is now gone. I have a video. I'll post it shortly. It's at the dealer now for the tech to look at it Monday 'to see if they can hear the sound'. I know they won't because it stopped. I don't know what to do. Sigh. It's an 08 with 31k.

Added vid.

9aristo

iTrader: (10)

that's really odd. At least you're still under warranty?

I don't think this is a common issue - but do update us with what they find out. I'm interested! sounds like a bearing going bad somewhere. For a 5 year old car, it's not out of the norm I suppose.

maybe they messed up the water pump job?

Jamakan

But why would the sound stop. It definitely didn't sound normal. My fear is that to find out what happened they will need to go in and if they don't hear anything out of the norm. They won't bother.

chrisp1

To be honest that sounds like it could be an issue with the water pump. Have you checked the coolant level recently? It almost sounds like the bearings in the water pump are no good

9aristo

iTrader: (10)

well at least you have a video to show them.

anytime troubleshooting occurs, it's best to witness or at least see the issue. i don't think they need to duplicate the issue to go in.

bearings are funny. sound can be intermittent.

we'll see what happens on Monday. If they decide not to do anything, and you have a breakdown that's related to the issue they dismissed, they'd be liable for the whole thing. just make sure they give you something as proof that you brought it in for that concern.

9aristo

iTrader: (10)

i just remembered - maybe it's the radiator fan? a couple of guys here had issues with a screw going loose and rubbing the core support.

CUTigers

Dang, been seeing problems pop up. Making me worried about mine!

Jamakan

But I just turned the car on. Does the fan always run? I don't remember the fan running. One thing I do remember is the sound didn't get faster with increasing revs or driving. So it was constant. What in the engine spins at a constant speed?

ISFPOWER

iTrader: (20)

washer or bearing on the pulleys?

GriMan

That does not sound good man. Idk if it would be the radiator fan. keep us posted.

kauaian

iTrader: (18)

This!



Ten characters

Jamakan

I just hope it's external. What washer are u referring to?

ming15237

iTrader: (3)

As a tech, this sounds to me like someone dropped a bolt or nut, and it landed behind one of the pulleys on the engine, and was rubbing on the pulley as it was spinning. This would make since as the sound stopped because the bolt/nut got kicked loose as it was worse down by the pulley.

Just F Me

Eh...it's not that bad...08 with 31k...so you got a small issue. Water pump deal we've all gone through, or at least a lot of the early models did.

What to know problems to not be happy with? Perhaps you would like to trade your car in for a BMW M? Audi S/RS? Mercedes AMG?

<<<---2008 IS F with 102,000 miles.

Hoovey689

iTrader: (16)

Just because it's a Lexus doesn't mean it's perfect. It is a car after all. Not every BMW is bad and not every Honda is good

I'm sure you'll find the source of the problem and get it fixed. Then you can enjoy your beast