General Maintenance & Repairs Leaks | Squeaks | Clunks | Rattles | Grinds
Sponsored by:
Sponsored by: CARiD

idle too high?

Thread Tools
 
Search this Thread
 
Old Jul 27, 2008 | 12:18 AM
  #1  
79Jeep's Avatar
Thread Starter
Staging Lane
 
Joined: Jul 2008
Posts: 76
Likes: 0
Default idle too high?

just picked up a 98 camaro ls1. the idle is at about 1100 rpm wondering how this can be adjusted without screwing up the tps.

thanks matt
Reply
Old Jul 27, 2008 | 12:21 AM
  #2  
1996firebirdformula's Avatar
TECH Resident
iTrader: (3)
 
Joined: Oct 2007
Posts: 883
Likes: 0
From: Seymour, Indiana
Default

Originally Posted by 79Jeep
just picked up a 98 camaro ls1. the idle is at about 1100 rpm wondering how this can be adjusted without screwing up the tps.

thanks matt
It runs at 1100 rpm Cold start or does it matter?
Reply
Old Jul 27, 2008 | 01:30 AM
  #3  
jsteele90's Avatar
11 Second Club
iTrader: (13)
 
Joined: Mar 2007
Posts: 2,870
Likes: 2
From: delaware
Default

sounds like an intake leak or your throttle body blade isnt closing all the way. try cleaning your tb and checking for intake manifold leaks
Reply
Old Jul 27, 2008 | 11:12 AM
  #4  
79Jeep's Avatar
Thread Starter
Staging Lane
 
Joined: Jul 2008
Posts: 76
Likes: 0
Default

Originally Posted by 1996firebirdformula
It runs at 1100 rpm Cold start or does it matter?
it idles at this if its cold or hot.


what would be good to clean the tb with? gum cutter? 2+2?

thanks, matt
Reply
Old Jul 27, 2008 | 02:24 PM
  #5  
HoLLo's Avatar
TECH Junkie
iTrader: (17)
 
Joined: Aug 2006
Posts: 3,161
Likes: 0
From: Rapid City, SD
Default

Seafoam deep creep
Reply
Old Jul 27, 2008 | 06:42 PM
  #6  
samson_420's Avatar
TECH Addict
iTrader: (1)
 
Joined: Nov 2007
Posts: 2,372
Likes: 0
From: Narnia
Default

Take a look at the TB and intake.
Reply
Old Jul 27, 2008 | 08:20 PM
  #7  
79Jeep's Avatar
Thread Starter
Staging Lane
 
Joined: Jul 2008
Posts: 76
Likes: 0
Default

Originally Posted by samson_420
Take a look at the TB and intake.
anything inpeticular i should be looking for? Leaks? if it closes all the way? i was told that the idle can be adjusted with the computer is this true?
Reply
Old Jul 27, 2008 | 08:26 PM
  #8  
samson_420's Avatar
TECH Addict
iTrader: (1)
 
Joined: Nov 2007
Posts: 2,372
Likes: 0
From: Narnia
Default

As far as I know it can not be adjusted.

Look at the throttle plate, it may be drilled or might not be closing all the way. Also listen around for vacuum leaks.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

 Brett Foote
story-1

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-2

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-3

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-4

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

 Verdad Gallardo
story-5

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

 Pouria Savadkouei
story-6

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

 Verdad Gallardo
story-7

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-8

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-9

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
Old Jul 27, 2008 | 10:05 PM
  #9  
SSNISTR's Avatar
11 Second Club
iTrader: (10)
 
Joined: Mar 2002
Posts: 2,728
Likes: 0
From: Florida
Default

Are you sure there is not a cam in there?
Reply
Old Jul 28, 2008 | 08:20 PM
  #10  
79Jeep's Avatar
Thread Starter
Staging Lane
 
Joined: Jul 2008
Posts: 76
Likes: 0
Default

i think i found the problem. i pluged it in today at work to the obdII computer and it said the tps was at 0 when it was just sitting so then i started it up and the computer said it was idleing at 800 rpm! i think i trust the computer more that the tach so im not too worried about it. i also checked for vaccum leaks on the intake and didnt find any.
Reply
Old Jul 28, 2008 | 08:31 PM
  #11  
3rdDegreeBurns's Avatar
Staging Lane
iTrader: (9)
 
Joined: Jun 2008
Posts: 89
Likes: 0
From: College Station,Tx
Default

I had a similar issue with a leak on my pcv valve hose. I had a big hole in the backside of this hose and when I replaced it my idle dropped to normal.
Reply




All times are GMT -5. The time now is 11:25 AM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-1
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-2
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-3
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-4
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-5
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-6
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-7
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-8
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-9
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