2002 Nissan Maxima Engine Knocking

2002 NISSAN MAXIMA
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HERNANDF
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  • 1 POST
I drive a 2002 Nissan Maxima SE model with 30K. About a week ago I noticed a light knocking when I accelarate between 2K to 3K rpm and at most times same noise comes up during sudden acceleration between 0-20 then 20-40 mph. I went to the Nissan dealer in Spokane and I was told it will cost me roughly $80 for diagnostic test. Does that sound about right? What's really causing the engine to knock at a very low mileage. What is your recommended fix to this problem? The owner's manual is recommending fuel w/ 87 or higher octane level. What about "Fuel Additives?" Will fuel additives fix the engine knocking? Please help.

Felix H.
Feb 27, 2006 at 1:22 PM
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FISHERMAN
  • ✓Experienced Mechanic
  • 937 POSTS
higher grade gasoline (92 octans)

i Have the same problem with my Maxima

but... the 92 its expensive!

i used 89 and still knocking
Feb 28, 2006 at 1:11 AM

Suggested Repair

Try higher-grade 92-octane gasoline. The expert reported the same knock on a Maxima and said 89-octane fuel did not stop it.

Conversation Summary

Owner of a 2002 Nissan Maxima SE with about 30,000 miles reports light knocking between 2,000 and 3,000 rpm and during sudden acceleration at low speeds. The manual calls for 87 octane or higher, and the owner asked about a dealer diagnostic fee and fuel additives. An expert with the same issue recommended 92-octane fuel and noted that 89-octane fuel still knocked.

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