C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Low idle at startup on 85

Thread Tools
 
Search this Thread
 
Old May 2, 2008 | 04:14 PM
  #1  
J H's Avatar
J H
Thread Starter
Instructor
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Oct 2002
Posts: 218
Likes: 4
From: Durham NC
Default Low idle at startup on 85

My 85 vette starts up readily. However, the idle is so low that I have to keep my foot on the pedal for a few to keep it going. After I drive it for a while, it behaves normally. This is especially so if I do not drive the car for a day or so. If it is driven daily, the low idle problem does not seem to appear. I changed the fuel filter a couiple days ago, but that did no good. Aftyer driving a few miles, the car drives great. Any ideas as to what is wrong??
Reply
Old May 2, 2008 | 05:11 PM
  #2  
The Beep's Avatar
The Beep
Burning Brakes
 
Joined: Jan 2007
Posts: 921
Likes: 0
From: Houston TX
Default

I.A.C.?
Reply
Old May 2, 2008 | 06:44 PM
  #3  
J H's Avatar
J H
Thread Starter
Instructor
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Oct 2002
Posts: 218
Likes: 4
From: Durham NC
Default

Thanks, that's what I was thinking, too.
Reply
Old May 2, 2008 | 11:06 PM
  #4  
John A. Marker's Avatar
John A. Marker
Le Mans Master
15 Year Member
 
Joined: Mar 2004
Posts: 5,107
Likes: 171
From: Dublin CA
Default

Check the IAC, it may need to be cleaned or replaced.

You might also check the TPS, but I would bet on the IAC.
Reply
Old May 3, 2008 | 09:29 AM
  #5  
J H's Avatar
J H
Thread Starter
Instructor
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Oct 2002
Posts: 218
Likes: 4
From: Durham NC
Default

Thanks, I will replace the IAC as soon at it arrives from Eckler's. If I remove it for cleaning, I might as well go ahead and replace it. Same labor and time involved. Thanks for the reply.
Reply
Old May 3, 2008 | 04:03 PM
  #6  
schrade's Avatar
schrade
Safety Car
 
Joined: Oct 2007
Posts: 3,816
Likes: 0
From: :45 minutes from everywhere / E-I-E-I-O
Default

Fully Automatic Assault Wallet in action.

Fuel filter. Nope.
IAC. ?

Low idle? I would first check the air filter.

If it is driven daily, the low idle problem does not seem to appear.
Seem? Can you find out for sure on that one? That would help.
Reply

Get notified of new replies

To Low idle at startup on 85





All times are GMT -4. The time now is 10:26 PM.

story-0
5 Best & 5 Most Overrated Corvette Track Packages of All Time!

Slideshow: The 5 best and 5 most overrated Corvette track packages ever.

By Joe Kucinski | 2026-06-09 12:46:45


VIEW MORE
story-1
Every 2027 Corvette Engine Explained

Slideshow: Every 2027 Corvette engine explained

By Joe Kucinski | 2026-06-09 12:16:31


VIEW MORE
story-2
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.

By Verdad Gallardo | 2026-06-08 19:53:43


VIEW MORE
story-3
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-4
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-5
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-6
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-7
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-8
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-9
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE