Hi,

I hope this question hasn't been asked/answered already. I've been noticing a noise coming from my car recently. It sounds like a rattling/hissing sound that is noticeable at around 3-4K rpm (kinda like a loose nut or screw in the engine). It does bother me, but i have been reluctant to take it to the dealer as i switched off the flat air filter with a cone K&N filter and they might blame me for it. The noise is audible at 3-4K despite which gear i am in. anyone experience the same thing? Thanks

 

sounds like the heat Shield issue we all had it

 

http://maxima.theowensfamily.com/tsb/NTB04-019.pdf

 

Wow, thanks guys!
I'll bring my car into the dealer soon, hopefully that will solve the problem.

 

Will the dealer fix this even if its not under warranty?

 

Whatever the case, just don't let them screw you for it - Good Luck

 

allright well i just looked under my car and fixed the problem. 2 of the bolts were loose.

 

Alright!

Thanks for the help. I brought it in and indeed it was the bent heat shield rubbing against something, creating that noise. That's all solved, but now my stinking SES light is on. i reset the ECU, and it came on again! Crappers. . another trip to the dealership .. . . i can make a book with all the invoices i have. My car was under warranty . . dunno if they charge if its out though. . .

 

go to autozone and check the code for free

 

I got the same issue with the heatshield rattling. 1st trip: they replaced the cracked bracket, didn't eliminate the noise. 2nd trip: they clamped up the heatshield, that eliminated the noise but then the SES light came on. 3rd trip: they replaced the CAT. It's all in the TSB. The 3rd trip was over the 36KMiles mark. But since it was an existing condition, they didn't charge me a thing. All has been good so far after 20KMiles.