View Full Version : Differential / Transmission / Transfer Case / or Overhaul?


KevnMurphy
06-18-2008, 02:52 PM
Forgive me as I have to have a long intro to help explain and hopefully help rule out some answers. With that being said, there is a clicking noise coming from under the dash.

Explanation of clicking noise. The clicking noise appears while I am coasting (in gear) from about 10 to 30 MPH. When going over 30, there must be some centrifugal force for it to go away. You can only hear it from inside the car with all the windows up and in the front seats. The clicking noise does go away when going 10 to 30 MPH when I put the car in neutral. It also goes away when I start to break or to give it some gas.

The work that I had done to try and solve the noise. Before the clicking, I had the right CV boot, control arm bushings, and an alignment done. So after having the previous work done, my mechanic (who I trust and is very good to me) thought it might be the front left axle. Well I just had it replaced, and the clicking noise is still there. Thankfully he didn’t charge me for the labor as they didn’t fix the problem, but the axle was partially bad as he did show it to me.

So with all of this going on, my mechanic thought it could be the wheel bearing or the wheel flange. But when speaking with him we both felt that it couldn’t be that if the noise goes away when putting it in neutral while coasting. Then that lead us to possibly the differential, transmission, or the transfer case. But I think that it might not be the transmission or differential because the noise goes away when there is either no load (neutral) or light load (brakes and gas) at all. The only other thing that I can think of, is that maybe there is something in the ABS sensor because under 70% braking from 20 to 0, there seems to be some wheel chatter or the ABS engages in the front left.

Question. So is it the transmission, differential, transfer case, ABS, or something even worse?

I am sorry for the crazy long story, but this seems to be a unique condition. I am just trying to research all I can, as well as my mechanic is doing the same.

I thank you all very much for taking the time to read this long post. I also thank you all very much for giving me any insight into this mess.

tomgtv
08-20-2008, 08:55 AM
I had a clicking sound when I started and sometimes while
underway. We replaced most of the CV joints and still there.

Then indy shop hooked up a microphone to transfer case and
drove down the road......that's it.......chain in there goes bad.

BMW wanted $2200 for new one plus $500 labor from indy shop.
I bought remanufactured one for $850 against advice from my
shop. 2 years later and 75,000+ miles it's working fine.......

Critter7r
08-20-2008, 01:27 PM
Change the fluid in the transfer case and see if it goes away.