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

85 Stalls when idling

Thread Tools
 
Search this Thread
 
Old Sep 1, 2020 | 01:52 AM
  #1  
Slasher1199's Avatar
Slasher1199
Thread Starter
1st Gear
 
Joined: Sep 2020
Posts: 1
Likes: 0
Default 85 Stalls when idling

My 85 dies when idling in any gear but neutral. It runs fine when moving, (as far as I can tell) but when I come to a stop while in drive it stalls. Brand new rebuilt automatic transmission. I was thinking maybe a vaccum leak?

Last edited by Slasher1199; Sep 1, 2020 at 02:26 AM.
Reply
Old Sep 1, 2020 | 02:32 AM
  #2  
gerardvg's Avatar
gerardvg
Safety Car
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2009
Posts: 3,745
Likes: 275
From: Melbourne, Victoria, Australia
Default

Originally Posted by Slasher1199
My 85 dies when idling in any gear but neutral. It runs fine when moving, (as far as I can tell) but when I come to a stop while in drive it stalls. Brand new rebuilt automatic transmission. I was thinking maybe a vaccum leak?
Hi
Is the timing bypass wire connected? is a single wire near wiper motor area.
check the EGR valve is not sticking open, that can cause stalls.
Check your TPS is set to 0.54volts dc (top and middle wire)
Make sure the IAC valve (with the square 4 pin connector) on pass side lower throttle body has not come loose.

If someone has adjusted the idle stop screw and removed the plug, you may need to set the base idle again.
Reply
Old Sep 2, 2020 | 12:03 AM
  #3  
65Z01's Avatar
65Z01
Team Owner
20 Year Member
 
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Default

What is the idle RPM in P and in D?
Reply

Get notified of new replies

To 85 Stalls when idling





All times are GMT -4. The time now is 10:07 PM.

story-0
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-1
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-2
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-3
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-4
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-5
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-6
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE
story-7
10 Things C8 Corvette Owners Hate (But Won't Tell You)

Slideshow: 10 things C8 Corvette owners hate, but won't tell you.

By Joe Kucinski | 2026-04-01 18:36:07


VIEW MORE
story-8
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

Slideshow: Should you add one of these incredible Corvettes to your garage?

By Brett Foote | 2026-04-01 18:14:05


VIEW MORE
story-9
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

Slideshow: Every Corvette Grand Sport explained

By Joe Kucinski | 2026-03-26 07:13:44


VIEW MORE