superkizuna

iTrader: (2)

So now I have noticed a new and much more chilling symptom. There is now a high pitched mechanical whine coming from underneath the car. It literally started when I was at the light by my place. I got down and listened and it sounds like its coming from the rear diff.

Fast forward about 20 minutes, I went out there and started it up to try and get a video and the noise is gone. I'm thinking I need to go and get my tcase and diff oil changed? Maybe the drive I just took thinned what was left out? What are the chances of this being connected to the ACD lights. The connection may be paranoid on my end but I just got the wheels on her and now all of this.

The whine is similar to the normal whine from the fuel pump but louder and coming from underneath the vehicle.

06RedRalli

iTrader: (49)

If the sound is there when the car is not moving, it can't be the diff, as that only moves when the car is in motion.

superkizuna

iTrader: (2)

So are you thinking more tranny or transfer case?... I did change the fluid in the rear diff but I currently have 2 jack stands and the little jack that I do have couldn't raise the car high enough to change the fluid in the transfer case.

LetsGetThisDone

iTrader: (1)

The ACD pump is all the way at the front of the car. Good bet you have an extra noisy fuel pump.

06RedRalli

iTrader: (49)

So just to check sound is there when the car is parked correct?

superkizuna

iTrader: (2)

Yes, it was. Present at all times.