Bad erg valve? - CamaroZ28.Com Message Board

Go Back   CamaroZ28.Com Message Board > 1967-2002 F-Body Technical Discussion > General 1967-2002 F-Body Tech

Reply Post New Thread
LinkBack Thread Tools Search this Thread
Old 12-17-2013, 12:32 PM   #1
Registered User
Join Date: May 2013
Location: Dallas,GA.
Posts: 18
Bad erg valve?

I had someone tell me a bad erg valve on a lt-1 could cause combustion gases to enter the cooling system, I haven't heard of this but I'm not a mechanic, is this true?
dallasz2876 is offline   Reply With Quote
Old 12-17-2013, 03:45 PM   #2
Super Moderator
Injuneer's Avatar
Join Date: Nov 1998
Location: Hell was full so they sent me to NJ
Posts: 44,866
Re: Bad erg valve?

Incorrect. The EGR valve is bolted to the intake manifold, and the exhaust gas path flows directly into the intake manifold, using the same holes in the intake runners as the idle air. The LT1 intake manifold is totally "dry" and has no coolant passages at all. No way the exhuast gas could get in the coolant, even if the valve is faulty.

94 Formula A3+1: 381ci all-forged stroker - Callies Stealth, Oliver 5.85 billet rods, BME nitrous pistons / CNC LT4 heads / Comp Cams custom solid roller / TH400 + GearVendors OD / Strange 12-bolt - 4.11's / 300-shot N2O / Spohn suspension / 6-pt roll bar with integrated SFC's / AutoMeter instrumentation / MoTeC M48Pro engine management system / a few other odds 'n ends. 800HP/800LB-FT at the flywheel.
Injuneer is offline   Reply With Quote
Old 12-24-2013, 10:34 PM   #3
Registered User
Join Date: Nov 2013
Location: Flint, MI
Posts: 30
Send a message via Yahoo to Dennyj1992
Re: Bad erg valve?

I'm about to change the gasket on mine here on Thursday evening.

Quick question on that. Could a bad gasket or the part itself cause the car to idle rough?
1993 Grey Camaro. 3.4 SFI, 4 speed automatic with O/D. All stock with 175,000.
Dennyj1992 is offline   Reply With Quote
Old 01-05-2014, 12:08 PM   #4
Registered User
Join Date: May 2013
Location: Dallas,GA.
Posts: 18
Re: Bad erg valve?

Yes a bad egr valve could cause rough idle.
dallasz2876 is offline   Reply With Quote
Reply Post New Thread

Similar Threads
Thread Thread Starter Forum Replies Last Post
Getting Out of the LT1 Game - LT1 Engine Parts HectorM52 Parts For Sale 25 09-06-2016 07:44 AM
1996 Formula M6, Hardtop, Black 71K original miles Jazsun Cars For Sale 0 12-29-2014 01:14 PM
6.2 ls3 parts and LS3 cnc heads BIGCOWL-IMP Parts For Sale 0 12-19-2014 07:59 AM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -5. The time now is 09:04 AM.


Copyright © 1996-2013 CamaroZ28.Com. All rights reserved.