PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

Simulate knock?

Thread Tools
 
Search this Thread
 
Old Aug 22, 2018 | 08:17 PM
  #1  
mk3cn4's Avatar
Thread Starter
TECH Enthusiast
20 Year Member
Liked
Loved
Community Favorite
iTrader: (3)
 
Joined: Apr 2005
Posts: 656
Likes: 104
Smile Simulate knock?

I have been tuning my new build for many days now and have never seen any knock show up at all ever. Wondering if knock sensors are even working, hoping to find an easy low risk way to test them.

I've searched and saw a few threads about advancing the timing a little at a time until it occurs, but was just wondering if anyone had any luck with mechanically reproducing a sound that triggers so I don't have to f*rt around with the timing?

I have heard of headers banging causing it. Yea I know, kinda stupid question just thot I'd ask..worth a shot.
Reply
Old Aug 22, 2018 | 09:15 PM
  #2  
slogo's Avatar
TECH Resident
 
Joined: Apr 2014
Posts: 985
Likes: 12
Default

Try a small ball peen hammer, position yourself where you can TAP repeatedly on the block. See what happens.
Reply
Old Aug 22, 2018 | 10:12 PM
  #3  
mk3cn4's Avatar
Thread Starter
TECH Enthusiast
20 Year Member
Liked
Loved
Community Favorite
iTrader: (3)
 
Joined: Apr 2005
Posts: 656
Likes: 104
Default

Originally Posted by slogo
Try a small ball peen hammer, position yourself where you can TAP repeatedly on the block. See what happens.
I know it's particular to certain frequencies. Yea if nobody knows of any reliable method maybe I'll try some combinations like that, like maybe a wrench on a header port even try to tap close to valley cover with socket extension or something LOL..
Reply
Old Aug 22, 2018 | 10:19 PM
  #4  
CattleAc's Avatar
TECH Fanatic
15 Year Member
Liked
Loved
Community Favorite
iTrader: (7)
 
Joined: Dec 2007
Posts: 1,644
Likes: 428
From: Dakota Territory
Default

Originally Posted by slogo
Try a small ball peen hammer, position yourself where you can TAP repeatedly on the block. See what happens.
This is a very reliable way to test your knock sensor...

Originally Posted by mk3cn4
Yea if nobody knows of any reliable method maybe I'll try some combinations like that, like maybe a wrench on a header port even try to tap close to valley cover with socket extension or something LOL..
Reply




All times are GMT -5. The time now is 05:13 AM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE