Aug 21, 2005 · Assuming you know for sure that the valve isn't leaking and causing the engine to idle rough or die if whatever issue you're having changes when you disconnect the EGR then you …

Jun 16, 2006 · The EGR system on early models (1988 through 1995) consists of an EGR valve, an EGR solenoid valve, and the engine's ECM (electronic control module). Under certain operating …

Oct 14, 2004 · The EGR valve should not be removed or disconnected either--it does affect performance slightly,but disabling it can make the engine start pinging or spark knocking,that leads to piston …

Jan 2, 2005 · I replaced the exhaust on my '91 V2500 Suburban a couple of years ago. The original large pancake cat is gone and replaced with a high-flow cat. If I cap the vacuum port on the EGR …

Dec 30, 2009 · I finally deleted the EGR valve and EGR solenoid. Because my Blazer is TBI - I had a hard time finding a Block Off Plate that lined up with the bolt holes in the GM TBI manifold (Ya, the …

Jun 15, 2021 · I have had the egr system do those kinds of things. I found out that a genuine GM EGR valve is the only way to go on these engines.

Nov 29, 2004 · UPDATE: I found a very small vacuum leak at the EGR base gasket. Replaced the gasket and that got rid of the last bit of hesitation. The leak was small enough that it would not …

Feb 6, 2013 · But if you want to know if the EGR is causing your issues, plug off the EGR and see if it runs better. You will get a CEL light to tell you that your EGR isn't hooked up but it won't hurt to run …

Mar 23, 2000 · I might want to see if the ign module is bad, or your torque lockup which is on the trans, if you have a front wheel drive. Im positive you dont have a fuel problem if your car does fine after …

Aug 21, 2002 · Sounds like a sensor is giving a bad reading, causing the computer to try to compensate. EVERYONE with FI needs some kind of scanner - like one I have from www.autoxray.com - to read …