Forced Induction Superchargers | Turbochargers | Intercoolers

Boost gauge not working anymore??

Thread Tools
 
Search this Thread
 
Old Feb 15, 2003 | 02:51 AM
  #1  
blown 346's Avatar
Thread Starter
TECH Fanatic
iTrader: (25)
 
Joined: Jan 2003
Posts: 1,426
Likes: 0
From: Loves park/rockford
Default Boost gauge not working anymore??

I just got my car out of the shop and the boost gauge doesnt work now? The gauge lites up but the gauge stays at zero. I pulled the gauge out of the pillar and all the connections are there. Does anyone know why this could have happened or what to look for such as where the vaccum line might not be connected. I looked today and cant find any line disconnected. Any help would be appreciated. The car went to the shop for new plugs and re-calibrating the gauges.
Reply
Old Feb 15, 2003 | 04:51 AM
  #2  
Black LS1 T/A's Avatar
Moderator
20 Year Member
 
Joined: Nov 2001
Posts: 3,048
Likes: 12
From: Raleigh, NC
Default Re: Boost gauge not working anymore??

So did you actually trace from the vacuum source all the way to where the plastic tube connects to the gauge? They could have connected it back to the wrong spot, damaged the line, let it rest against the exhaust and burned it, etc, etc.

It sounds like it's not reading vacuum, either, right? It just doesn't sound like the gauge would just quit like that.

If for some reason you can't trace the whole line, just for a test, take the guage out and connect it directly to a vacuum source with a short length of tubing and see if you get a vacuum reading.
Reply
Old Feb 16, 2003 | 02:33 AM
  #3  
Texas Terminator's Avatar
11 Second Club
 
Joined: Jul 2002
Posts: 1,426
Likes: 0
From: Beaver Falls, PA
Default Re: Boost gauge not working anymore??

is it a mechanical or electronic guage? mechanical: cracked, pinched, disconnected, or otherwise damaged line. remove the line at the guage and start the engine. you should feel vaccum on it. electronic: same things as mechanical plus: electronics failure or broken wire.
Reply
Old Feb 16, 2003 | 02:52 AM
  #4  
blown 346's Avatar
Thread Starter
TECH Fanatic
iTrader: (25)
 
Joined: Jan 2003
Posts: 1,426
Likes: 0
From: Loves park/rockford
Default Re: Boost gauge not working anymore??

It's a mechanical gauge, there is no vaccum or or boost. It does seem weird that it would just stop working. What would the gauge have anything to do with the plugs being replaced? (having the tube be in the way)
Reply
Old Feb 16, 2003 | 02:57 AM
  #5  
Texas Terminator's Avatar
11 Second Club
 
Joined: Jul 2002
Posts: 1,426
Likes: 0
From: Beaver Falls, PA
Default Re: Boost gauge not working anymore??

depends where the line taps into the manifold. they may have knocked it off somehow. just find where it connects on the intake and put it back together. if it is leaking and you have decent hearing (unlike myself) you should hear it sucking air while it is idling. you may even notice a higher, surging, or poor idle.
Reply
Old Feb 16, 2003 | 05:14 AM
  #6  
Black LS1 T/A's Avatar
Moderator
20 Year Member
 
Joined: Nov 2001
Posts: 3,048
Likes: 12
From: Raleigh, NC
Default Re: Boost gauge not working anymore??

Oh... you don't have an Autometer gauge?
The ones I'm familiar with have vacuum AND boost on the dial.

I hear anything other than Autometer are famous for being poor quality. May sound like hype... but, that's what I've read from guys that have bought gauges other than the Autometer.

Maybe you should get one. Only 35 to 45 bucks, depending on where you get it. And, having vacuum readings is helpfult, too. You always know if the gauge is working, even while cruising, and it helps you detect other problems.
Reply
Old Feb 18, 2003 | 12:27 AM
  #7  
blown 346's Avatar
Thread Starter
TECH Fanatic
iTrader: (25)
 
Joined: Jan 2003
Posts: 1,426
Likes: 0
From: Loves park/rockford
Default Re: Boost gauge not working anymore??

sorry about the confusion, I do have an Auto Meter gauge. I found the problem, The capillary tube blew out under boost and decided to hide itself behind the ABS box. I was looking at the rubber vaccum line, and it looks like the vaccum line and the capillary tube are only being held together by zip ties. I dont think it will hold, any ideas of what to use, I cant seem to find a small enough clamp.
Reply
Old Feb 18, 2003 | 06:27 AM
  #8  
Black LS1 T/A's Avatar
Moderator
20 Year Member
 
Joined: Nov 2001
Posts: 3,048
Likes: 12
From: Raleigh, NC
Default Re: Boost gauge not working anymore??

Zip-tied tightly enough, it should hold.

But, you SHOULD be able to find a small enough screw clamp. They make those things where they can almost have no diameter space. You have to find the right design where it distrubutes the clamping equally around the tube.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo




All times are GMT -5. The time now is 08:24 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