Stupid LS3 throttle question
Thread Starter
Burning Brakes
Joined: Sep 2012
Posts: 801
Likes: 259
From: Gambrills, Maryland
Stupid LS3 throttle question
Trying to isolate a noise and need to hold the engine RPM...
With the fly-by-wire, is there any way to actuate the throttle from under hood?
Yes, dumb question but new to FBW and the LS3. Pics or Helen Keller instructions appreciated...
/r
Allen
With the fly-by-wire, is there any way to actuate the throttle from under hood?
Yes, dumb question but new to FBW and the LS3. Pics or Helen Keller instructions appreciated...
/r
Allen
Thread Starter
Burning Brakes
Joined: Sep 2012
Posts: 801
Likes: 259
From: Gambrills, Maryland
Thread Starter
Burning Brakes
Joined: Sep 2012
Posts: 801
Likes: 259
From: Gambrills, Maryland
No, I had a helper rev the engine but perturbed that there was no obvious way to do it myself.
The noise is a chirping sound- trying to isolate it to either the tensioner or more likely the harmonic balancer (based on LSx track record).
Noise is RPM dependent, prevalent just off idle and changes with RPM. No glazing on the belt (yet) and no visible wobble on the HB (yet).
/r
Allen
The noise is a chirping sound- trying to isolate it to either the tensioner or more likely the harmonic balancer (based on LSx track record).
Noise is RPM dependent, prevalent just off idle and changes with RPM. No glazing on the belt (yet) and no visible wobble on the HB (yet).
/r
Allen
Supporting Vendor
Joined: Feb 2011
Posts: 3,523
Likes: 885
2024 C6 of the Year Finalist - Modified
2020 Corvette of the Year Finalist (track prepared)
2019 C6 of Year Winner (track prepared)
With the HP Tuners scanner you can command the idle up to about 1200 RPM but beyond that you have to start playing with the airflow tables in your tune. I had a similar situation recently where I had a noise at around 1900RPM and after tweaking it for about 10 mins I got it to idle where I needed it to.
Thread Starter
Burning Brakes
Joined: Sep 2012
Posts: 801
Likes: 259
From: Gambrills, Maryland
A little off-topic here...
Took the car into the dealership today for a check-up and the noise since I bought my car as a "Certified GM" car which includes a year warranty. The tech noted the noise and all they would/could do is replace the belts.
I spoke to the service manager and he agreed that documenting it now was appropriate and actually acknowledged the belt swap would likely not solve the root problem BUT it was what GM called for.
Hoping this isn't the start of a painful saga...
/r
Allen
Took the car into the dealership today for a check-up and the noise since I bought my car as a "Certified GM" car which includes a year warranty. The tech noted the noise and all they would/could do is replace the belts.
I spoke to the service manager and he agreed that documenting it now was appropriate and actually acknowledged the belt swap would likely not solve the root problem BUT it was what GM called for.
Hoping this isn't the start of a painful saga...
/r
Allen
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
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Melting Slicks
Joined: Jun 2011
Posts: 3,116
Likes: 598
One man show
My Scan tool from AutoEnginuity Has a command to set the Engine RPM to any setting. 2010 GS. Never set it to any past 3000, but it did work. I was playing around with the scan tool for testing on what it could do.