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Intermittent Engine Knocking on Idle


Neil

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Did anyone find out this problem my mum has purchased a 350z on idle it does a small knock every 10 seconds or longer ? If ac is on it doesn't do it and if clutch is pressed down it doesn't either ? It makes the know along with the popping they do on idle maybe it is a rattle and when it pops a lil louder it knocks ? Plz help thank you

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I found that if I make sure the oil is topped up correctly, the knocking disappears (strangely), so I have been keeping an eye on it. If I notice a knock I add half a litre and it behaves.

 

What's this cam sensor Mike?

 

Thanks

Neil

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It seems to be running fine just on tick over that slight knocking oil is topped up its just been serviced by Nissan :s oh and 1 other question when you pull dipstick out why is there like a bit of metal next to the hole to make it difficult to put in and get out its like small silver hard clip or something ?

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It seems to be running fine just on tick over that slight knocking oil is topped up its just been serviced by Nissan :s oh and 1 other question when you pull dipstick out why is there like a bit of metal next to the hole to make it difficult to put in and get out its like small silver hard clip or something ?

 

It's a dipstick guide as it enters on an angle...

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Ok brilliant thanks for your help guys, quick question she is going to buy y pipe and cat back system I heard miltek and scorpion are the ones to go for is that correct? And who would you recommend tuners to remap it etc I think I spoke to horsham or something they good ?

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I have this too!, would love to know what it was, I noticed if I have my foot resting on the clutch (not pressed) I have "feel" the clunk also!, its coming somewhere from the back of the engine low down, and it stops when the revs are slightly higher - like when the a/c is on, its now starting to drive me mad coz I notice it even more, any one any ideas??

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