Sound when the engine start

Asked by Jan 18, 2018 at 05:08 AM about the 2006 Lexus IS 350

Question type: Maintenance & Repair

I have lexus is350 2006. It has a sound while strat the
engine for about 1 second then disapear. This sound
becomes only when the engine is cold. If you can know
what is then problem ill be thankful for you. I have took a
video while start then engine and the sound obvious if you
want to send it for you through email.


3 Answers


No idea without hearing it. Make sure the oil filter has an anti-drain back valve in it, some cheaper oil filters do not have this and can cause low oil pressure problem on start up. You can also try some STP or Power Punch to the engine oil, if you have some slight wear with the engines bearings it will help but not cure the noise.

1 people found this helpful.

Can i take your email address to sent you the video so you can hear the noise.


Try that but the audio must be high quality and focused so you don't get a lot of background noise.

Your Answer:

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