Help knocking noise in g37 at idle
12-13-2013, 08:28 AM
#1
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Help knocking noise in g37 at idle
Hello I have a 2008 coupe and it darted making a loud knocking noise in idle if I give it some gas the noise goes away but then returns when car is back at idle if I turn off the car and turn it back in te noise is gone Untill I drive again and it warms up what is this?
12-13-2013, 10:59 AM
#3
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Is it a knocking say like a metallic sound, or, does it sound like a Peterbuilt Diesel? Mine is brand new and the diesel sound is pretty common when it first starts, but the minute I slip it into gear...the sound vanishes. There are others on the forum that have confirmed this is normal with the VQHR37.
12-26-2013, 06:50 PM
#5
Switch to Ester based oil such as Eneos or Motul. The dealer uses the Nissan petroleum based w/ ester additive to remedy this but it is not as good as the fully synthetic ester based Eneos for the same price. I switched to Eneos early as a preventative and have never had this issue.
12-27-2013, 03:30 PM
#6
Switch to Ester based oil such as Eneos or Motul. The dealer uses the Nissan petroleum based w/ ester additive to remedy this but it is not as good as the fully synthetic ester based Eneos for the same price. I switched to Eneos early as a preventative and have never had this issue.
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01-01-2014, 10:48 PM
#10
You probably have already checked this, but I had knocking with certain brands of oil filters. Seems like our cars are picky and, so far, only the stock filter or Mobile 1 (don't scream at me!) are OK from my limited experience. Of course, I wouldn't rule out the oil as others have said. I use Castrol Edge / Synthetic 5W30 and have had great results with it.
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