ELSD hum
Thread Starter
Cruising
Joined: Oct 2018
Posts: 13
Likes: 3
From: Austin
ELSD hum
16 zo6 and when I start up car rear end hums for 15 sec and now when I make some turns at low speed rear end feels like it slipping or rear tire skip. I am aware of front tire skips on tight turns but I not turning sharp and feels like skip in rear? Also never noticed the hum, is that normal?
thx
thx
Melting Slicks
Joined: Jun 2016
Posts: 2,845
Likes: 521
From: Eastern WA
The hum is probably the hydraulic pump. Normally it runs when you are driving and you can't hear it over other noises. It doesn't seem normal that you hear it each time you start. What does the tire skip feel like...like a tire spinning or the same as the front tire skip. Turn you DIC to the ELSD before you start the car. When you start and hear the hum see if it goes from 0% lock to 100%. Then watch what it does when you drive. See what % lock it is showing when turning corners and you feel the slip.
Thread Starter
Cruising
Joined: Oct 2018
Posts: 13
Likes: 3
From: Austin
Today when I started the car I counted 9 cycles on the ELSD that ranged from o to 100%. It lasted about 15 sec and if I take off and turn the rear wheel will skip. I just dropped it off at chev and the tech recorded the long cycle. One it cycles 9 times it is then fine to turn. It makes sense that if the diff was locked it would skip when you turn.
thx
thx
Melting Slicks
Joined: Jun 2016
Posts: 2,845
Likes: 521
From: Eastern WA
It will be interesting to hear what the dealer determines is causing the problem. They might throw a few parts at it without knowing the exact problem. Seems the controller doesn’t recognize the clutches are engaged. Might be a sensor or the controller.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski