Droid13

It was. Let me summarize for those that don't want to watch the whole thing.

• Nissan bad
• motorcycle style timing chains better than car style
• Nissan bad
• Timing chains can fail too
• Timing chains can last a long time too
• Nissan bad
• Rattling timing chain very bad
• Toyota ok
• Rattling timing chain very bad
• Nissan bad
• BMW good
• Rattling timing chain very bad, needs replacement
• Nissan bad
• Most automakers are bad
• Most timing chains designed to fail after 100,000km

Ok, somewhat exaggerated, but I think it's an interesting viewpoint and does elaborate that a crappy design will lead to crappy results, but not necessarily reflective of typical results. Here's a guy that obviously fixes a lot of broken engines, so of course everything to him is a broken engine about to happen. I think his 100,000km design to fail comment is quite pessimistic though. I hope so, I just hit 200,000km.

Ahmedsa

Hi guys
I got a 3rd gen 2009 Lexus rx450h
it's got 160000kms
on cold starts it vibrated and a rattling noise can be heard once warmed up it's fine
The engine light did come on when plugged it said cylinder 6 misfire they swapped injectors coils etc. But it still said misfire cylinder 6
but after diagnosing a bit they saying it's the timing chain, since oil pressure is low on cold start the chain is loose and doesn't tension up once warmed it's tight so it's fine
is it normal for timing chain go go out at this milage
they also say we have to do the whole kit one time chain,gears etc.
thanks

Clutchless

I think that is a first on this forum. The cold start rattling is not the timing chain on the third generation. Who did this diagnosis?

See this thread. https://www.clublexus.com/forums/hyb...cold-soak.html
I think you need to get a second opinion from a Toyota specialist.

Try changing your oil and using 4.5 quarts 0w20 and 2 quarts 0w40. I found the slightly thicker mixture reduces the cold start rattle. Also replace your oil filter base as they can get clogged reducing oil flow which leads to the noise being louder as it takes oil longer to move around.

Ahmedsa

Hi thanks for the reply
I am having the exact same problem as those 2 guys
thanks for the link I couldn't find anything on the forum until you posted
I'm relieved to know others also had this problem so I can see what the solution is thanks

Ahmedsa

Hi thanks for the reply
I am having the exact same problem as those 2 guys
thanks for the link I couldn't find anything on the forum until you posted
I'm relieved to know others also had this problem so I can see what the solution is thanks

osebastian

I own a 2013 RX350 with 80K miles on it. Recently, I have been hearing a noise (like a ticking sound that is loud enough) coming from the front of the engine. I disconnected the serpentine belt and let the car idle to eliminate Tensioner or Idler Pulley or the Water Pump and AC Compresor or Alternator, but the noise is still there. Anyone had a problem like mine? was it the timing chain guide?

RX in NC

Could be the VVT solenoids clicking (assuming your vehicle indeed has VVT). By the way, VVT stands for Variable Valve Timing.

Clutchless

Or just the fuel injectors ticking due to deposits build up as the miles add up. Try a 20 oz. bottle of Techron fuel system cleaner in your gas tank. Then change your oil & filter after you have used up that gas and filled it up again.