Noise in engine when first start

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Nov 18, 2013 | 07:25 AM

tofu

Thread Starter

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Joined: Nov 2006

Posts: 278

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From: TX

Noise in engine when first start

If my 2001 LS430 with 156K miles is sitting for few days without running and when I start the car it is making a noise like the valve cam shaft or something like that and then quit after 1 second. Seem to me that oil is low but the car is full of oil and new oil too. The car is running fine...
What could cause that??

Nov 18, 2013 | 08:06 AM

Lynzoid

Lexus Test Driver

Joined: Jun 2010

Posts: 823

Likes: 14

From: RU

that's rather normal for old car.
it's most probably leak-back valve inside the oil pump that allows the oil to drain back to pan from heads.

Nov 18, 2013 | 07:13 PM

warminwisc

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Joined: Oct 2008

Posts: 2,875

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From: wi

My last 04 did that starting about where you are till I sold it at 197k. Never burned or puffed oil and only did it on occasion above 80 degrees. I hated the noise also so I bought a different one low miles. I did not notice any performance or detrement in any way but I like em quiet. Try a ford motorcraft? filter with a back valve

Nov 18, 2013 | 09:36 PM

ancdmd

Lexus Test Driver

Joined: Mar 2007

Posts: 1,025

Likes: 13

From: McAllen, TX

had same thing, it was the starter

Nov 19, 2013 | 03:45 AM

warminwisc

Pole Position

Joined: Oct 2008

Posts: 2,875

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From: wi

Go to 5-18-13 thread on filters with anti drainback valve. Thanks Cowboy

Nov 19, 2013 | 05:41 AM

tofu

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Joined: Nov 2006

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From: TX

Quote:

Originally Posted by warminwisc

Go to 5-18-13 thread on filters with anti drainback valve. Thanks Cowboy

Can't find any post on 5-18-13 about anti drainback filter.
I saw something about Motorcraft 400s, is that the one?
Found it! it is in LS400 posted by LSCowboyLS on 5-18-13
Thanks

Last edited by tofu; Nov 19, 2013 at 05:50 AM.