Misc , if you don't know my story Ill cliff it.

Took car to backyard mechanic to change spark plugs
****ed up car
Took it to a dealer & they fixed everything except 1 thing.

Dealer couldn't diagnose my buzzing noise( Nissan dealer . Car is infiniti)

My car makes some very weird buzzing noise behind the passenger dash/firewall . I really don't know what the hell he could've done to cause this by simply changing spark plugs.

Car is infiniti 04 g35x

Guy said he supposedly "Checked the wires" and nothing seems to be wrong with them. I believe they're bad grounds or something. Is this something i could try to check myself?

Could it be the tranny? It does happen between a certain RPM

 

Is that in car footage/soundclip?

 

All I want to know is how does someone f#ck up changing spark plugs???
If I didn't do all my own work I would never bring my z to Joe blows gorilla mechanics shop.. WTF



but really I hope it all works out well for you!!!

 

Yeah its in car footage. coming from the passenger side

 

SMH I work in my garage as a BYM, and this work offends me lol.

The only noise I have heard like this was from my girls versa:

1: Deep within the versas dash (where the windshield meets the frame) there is supposed to be this noise dampening material to prevent glass vibrations from harmonizing too loudly, on her car this material had fallen, so it would buzz at certain RPMs

2. Some a55hat at a dealer was working on her car and pushed one of the power steering hard lines too close to the firewall, so with engine vibrations that tube would vibrate.

My advice would be to put the car on a lift and inspect EVERYTHING to make sure it has ample clearance from anything else. my .02 cents.