JHZR2
Staff member
I cleaned my EGR valve on my 98 S10 ZR2. It has around 55k on it... definitely not needed.
I bought a replacement gasket. Far softer (mica or vermiculite perhaps) than the OE one, and this one has a screen on the exhaust port side.
I took pictures, but somehow they didnt save... dont know why. I was suprised at this, but oh well... wasnt much to see.
I cleaned the EGR and the intake side and exhaust side with both throttle body cleaner and seafoam deep creep. I put deep creep into the EGR, so that whatever moving parts are inside are lubricated.
After all this, still slight engine shake... but the engine did seem to idle a tiny bit higher. Still, suprised that there were no deposits, nothing dirty, and the surface black coating was effectively non-existent - ultra thin and just surface staining.
So, my question is, how often does one actually clean an EGR? Im sure many do it never, but if it is done, are there typically solids present? Does a lot of carbon typically come out?
I wonder if the consistent use of fuel adds helped in any way...
I bought a replacement gasket. Far softer (mica or vermiculite perhaps) than the OE one, and this one has a screen on the exhaust port side.
I took pictures, but somehow they didnt save... dont know why. I was suprised at this, but oh well... wasnt much to see.
I cleaned the EGR and the intake side and exhaust side with both throttle body cleaner and seafoam deep creep. I put deep creep into the EGR, so that whatever moving parts are inside are lubricated.
After all this, still slight engine shake... but the engine did seem to idle a tiny bit higher. Still, suprised that there were no deposits, nothing dirty, and the surface black coating was effectively non-existent - ultra thin and just surface staining.
So, my question is, how often does one actually clean an EGR? Im sure many do it never, but if it is done, are there typically solids present? Does a lot of carbon typically come out?
I wonder if the consistent use of fuel adds helped in any way...