Need Help....!

A general discussion forum for G35 and G37 owners and a great place to introduce yourself to the NICOclub G-Series Forums!
austinnn11
Posts: 6
Joined: Tue Dec 24, 2013 5:45 am
Car: 2004 G35 6mt

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Hi guys , I have a 2004 g35 6mt, after a 10 minute drive or so when I am at idle I hear almost like a knocking sound. it only happens after a long drive and at idle. When the car starts cold its fine and when im driving I do not here any knocking. If I leave the car knocking while at idle for about 15 minutes it stops. What could this be??


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elwesso
Posts: 34280
Joined: Sun Feb 23, 2003 4:52 pm
Car: 94 Infiniti Q45t 5 spd
2007 BMW M Coupe
2007 Infiniti G35 S 6MT
Location: Indiana
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Is it definitely coming from the engine? how loud is it? Does the noise go away if you push the clutch pedal in?

I moved this to the G forum! :)

austinnn11
Posts: 6
Joined: Tue Dec 24, 2013 5:45 am
Car: 2004 G35 6mt

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Yes it sounds like it is coming from the lower passenger side of my car.... it is not that loud but definitely noticeable... It will come and go the knocking ....I am not to sure if it goes away when the clutch is down but I do not think so

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telcoman
Posts: 5763
Joined: Sat Jul 08, 2006 11:30 am
Car: Tesla 2022 Model Y, 2016 Q70 Bye 2012 G37S 6 MT w Nav 94444 mi bye 2006 Infiniti G35 Sedan 6 MT @171796 mi.
Location: Central NJ

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Do you ever check your oil?

Telcoman

austinnn11
Posts: 6
Joined: Tue Dec 24, 2013 5:45 am
Car: 2004 G35 6mt

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yes I change my oil every 3000 miles

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elwesso
Posts: 34280
Joined: Sun Feb 23, 2003 4:52 pm
Car: 94 Infiniti Q45t 5 spd
2007 BMW M Coupe
2007 Infiniti G35 S 6MT
Location: Indiana
Contact:

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I wonder if it's an exhaust leak around the exhaust manifold? Sometimes exhaust leaks can sound a lot like engine ticks and knocks.

austinnn11
Posts: 6
Joined: Tue Dec 24, 2013 5:45 am
Car: 2004 G35 6mt

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I will check into seeing if it is an exhaust leak.... it is very weird though because after letting sit at idle the sound goes away... and if the ticking or knocking starts and I turn the car off for 20 seconds then start it back up it goes away for a while.... also when ticking if I rev it up on the way down in the low rpms I hear it slowing down also when I shut the car off when the motor stops I can hear the ticking slow down and then turn off which makes me to believe it is in the motor.

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elwesso
Posts: 34280
Joined: Sun Feb 23, 2003 4:52 pm
Car: 94 Infiniti Q45t 5 spd
2007 BMW M Coupe
2007 Infiniti G35 S 6MT
Location: Indiana
Contact:

Post

Is there any way you can take a video and post it on youtube or something for us to view? That would be a lot easier than trying to describe a sound :)


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