A knock at start-up - Page 2 - G35Driver - Infiniti G35 & G37 Forum Discussion

Aug 4, 2010 | 08:34 PM

#16

Wannabe6MT

-MN G Crew-

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Joined: May 2007

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From: Fargo ND/Eden Prairie MN

So im NOT the only one! My car makes the rattle knock noise whenever i start it up and its cold. Sounds SO unhealthy. But it goes away and usually doesn't happen when its warm.

Aug 4, 2010 | 08:51 PM

#17

SN00P

CLUB MODERATOR

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Joined: Jan 2010

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From: Florida G club

a rattle ^^^ mine does it sometimes hen its winter in florida hahaha since iv owned my car iv heard like 5 different noises since owning my car but my oil is fins i dont have the oil consumption problem ... but now im not getting any noises lol

Last edited by SN00P; Aug 4, 2010 at 08:55 PM.

Aug 5, 2010 | 08:02 AM

#18

Blue Dream

I drove ttrank's car solo

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From: By the sea, Tx

G35 sedan w/ too much money in mods

Quote:

Originally Posted by Arn35

I also hear sometimes a clunk but only right after starting the car and moving maybe 100 feet. If I just sit and idle it doesnt happen. When you say WTF was that to your car, it makes you worry.

What you are hearing is the ABS self test. It will happen every time you start the car and move forward. It kicks in at ~ 1500 RPMs or 10 MPH, not sure the specifics. If you have your foot on the brake pedal when it happens you will feel it vibrate. It's perfectly normal.