03-14-2011, 09:01 PM | #1 |
Iroc-Z <3'r
Drives: '87 5.7L Iroc-Z Join Date: May 2008
Location: Modesto, CA
Posts: 392
|
IAC or EGR Valve?...
87 5.7L V8 camaro:
Just wondering which itd be per the issues I'm having...any help is appreciated!, I believe it to be the IAC but friend says it's the EGR. problems: rare, but occasional rough idle at stop lights. (idle fluctuates) car dies when switching from Drive to Reverse (completely dies, have to redraft car afterward) idle while in reverse is VERY rough. (car vibrates hard) yesterday the idle was at about 1k rpm after a 1 hour drive..normally it's about 6-700 when the engine is warmed up/been driven.
__________________
"Camaro Z/28 is back. Gentlemen, Don't even bother to start your engines." |
03-14-2011, 09:14 PM | #2 |
|
Check for vac leaks also...poss carbon fouling of egr...it gets stuck and holds egr open and then blows through..they have gaskets with screens to help stop the carbon fouling
__________________
THE "MENACE"
|
03-14-2011, 09:16 PM | #3 |
|
the harsh vib can be caused by mounts and the torque rod bushins on the drivshaft...
__________________
THE "MENACE"
|
|
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
DIY: LS3 Camshaft Install (a lot of pictures, may take a moment to load) | robertway | Camaro DIY & HOW-TO instructions & discussions | 313 | 12-16-2023 06:53 PM |
What do all the abbreviations mean? | CrzyGamr2 | 5th Gen Camaro SS LS LT General Discussions | 77 | 12-07-2012 04:34 AM |
Acronyms? | KEEP RT | Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons | 20 | 03-11-2011 08:57 PM |
EGR Valve Replacement - Help Appreciated | ss ZHO | 4th Generation Camaros | 4 | 07-26-2010 08:31 PM |
AFM: how does it works? | tommygun6644 | 5th Gen Camaro SS LS LT General Discussions | 9 | 02-28-2010 03:36 PM |