EGR blowout? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 02-12-2005, 08:32 PM   #1
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Default EGR blowout?

I swapped the EGR from my 93 SE parts car because it seemed mine leaked. Soot was building up around the outside of it, like on the side of the valve cover, etc. It'* not coming from the gasket, but between the solenoids and the base of the EGR.

So I put the other one in, I noticed an extra growl near redline. I guess this one does it even worse. It didn't leak at all on the other car.

Am I moving so much air that it'* blowing out the EGR? Do I need a high flow muffler to possibly remedy the situation? I already have a high flow cat.
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Old 02-13-2005, 01:05 PM   #2
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Anyone have a similar type leak?
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Old 02-16-2005, 12:01 AM   #3
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Anyone...


Beuler?
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Old 02-17-2005, 01:45 PM   #4
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Leaky EGR? Anyone?
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Old 02-17-2005, 01:47 PM   #5
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Mine leaks reall good right now. It'* in day 2 of the ultrasonic cleaner.
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Old 02-17-2005, 01:51 PM   #6
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Well this one worked fine on the 93 L27, now it leaks like a bitch from between the actuators and the base. Is my backpressure too high for it?
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Old 02-17-2005, 04:40 PM   #7
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Exact same part? New gasket? Wiring/codes clean?
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Old 02-17-2005, 04:58 PM   #8
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The 92 has springs you can see. The 93 has metal collars that cover them. New gasket, even though I could have reused the old one. No codes. Haven't seen anything wrong with the wires. Could a short cause them to open too far?
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Old 05-04-2005, 11:00 PM   #9
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Well, after the new Magnaflow, there is no more growl from the EGR. I need to clean off the areas around it to see if it still leaks.
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Old 05-05-2005, 12:42 AM   #10
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John, your PCM may have needed time to learn the new (better or proper) flow from the EGR.
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