Why does my Lexus RX 350 make noise at idle?
The injector noise cannot be mistaken for pinging or detonation, except by neophytes. You won’t find a gasoline, internal combustion engine pinging at idle unless it was designed to do so, such as the single cylinder, adjustable compression engine used to test gasoline for octane rating.
Is there a problem with my Lexus RX350 engine?
Dealer service pulled the the noise won’t cause any damage to the engine. I have a 2010 RX350 with about 9,000 miles. The engine has developed loud valve and tappet (I think) noise after about 5,000 miles.
Why does my Lexus V6 rattle when I cold start the car?
The first cold start of the morning some Toyota and Lexus V6 owners, especially those who have the 2.5L or 3.5L V6, notice a loud rattle the first few seconds after startup. The noise disappears after the car builds oil pressure. The most common cause is the variable valve timing camshaft gear assembly leaking down oil pressure as it sits.
What makes the engine rattle in a Toyota?
Other versions of the engine with these cam gear can also have issues with check engine lights and ticking noises from the engine while it runs. Toyota repair bulletin T-SB-0094-09 covers this more in depth (it’s a big procedure requiring engine removal).
The injector noise cannot be mistaken for pinging or detonation, except by neophytes. You won’t find a gasoline, internal combustion engine pinging at idle unless it was designed to do so, such as the single cylinder, adjustable compression engine used to test gasoline for octane rating.
Dealer service pulled the the noise won’t cause any damage to the engine. I have a 2010 RX350 with about 9,000 miles. The engine has developed loud valve and tappet (I think) noise after about 5,000 miles.
The first cold start of the morning some Toyota and Lexus V6 owners, especially those who have the 2.5L or 3.5L V6, notice a loud rattle the first few seconds after startup. The noise disappears after the car builds oil pressure. The most common cause is the variable valve timing camshaft gear assembly leaking down oil pressure as it sits.
Other versions of the engine with these cam gear can also have issues with check engine lights and ticking noises from the engine while it runs. Toyota repair bulletin T-SB-0094-09 covers this more in depth (it’s a big procedure requiring engine removal).