300ZX Noise

[Cloud123]

Been wanting to post this for a while but my 300ZX NA has been making this noise on acceleration.

The sound fades away as I hold the gas, sometimes It happens when I turn the car on, sometimes it happens when I dont even press the pedal at all.

https://drive.google.com/open?id=0B-KR4 ... F83R1lJbHc

That is the link to the video, please hear the beginning and towards the middle for the beeping-like sound.

I believe this sound started to occur after I switched my wheels from the stock ones. They are about twice the weight of my old wheels.

So is this ABS? Fuel Pump? Something else?

Thanks.

[DCaff300ZX]

Didn't hear anything notable here, sorry.

[z.Leinbach]

are you talking about the high pitched whine???

[DCaff300ZX]

are you talking about the high pitched whine???

OK, listened again and as Zach mentioned I did hear a whine or some sort of high pitched noise, but have never heard that sound before attached to any problems I've had which have over the years been quite a few...again, sorry for no real help.

[z.Leinbach]

honestly to me that sounds how a dogged engagement trans sounds.. but i know z trans don't normally sound that way

[Cloud123]

Here is a better video, cold start.

https://drive.google.com/open?id=0B-KR4 ... 1FsZ2NCbHc

If you have bass up, turn it down and you can clearly hear it. Coming from the rear of the car, did not seem to increase the sound with the tire and all the covers out of the car so i dont think its the fuel pump but most likely ABS.

Ideas?