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I have a 3.8L Buick motor in my 1985 Regal, which was an old lady's car. It wasn't driven much, and sat for a while. I've tuned it all up with fresh everything, but there is still some vibration at low idle, and I notice the idle surging slightly, also at low idle. I guess I'm just picky, but I want to smooth it out completely.
My buddy suggested taking off the carburetor to clean the carbon off the bottom side, but another friend suggested the EGR could cause that problem too, as he learned from his Chevy 400. Now I always thought EGR didn't bother Chevy engines too much, but I know with Oldsmobile engines, a clogged EGR can be the difference between that sucker being a complete dog and running like a raped ape. I've been unable to find anything about these Buick motors other than Turbo hi-po info. Does anyone know if these EGRs like to clog up and make the car run kinda crappy, like in the Oldsmobile engines?
Thanks!
Jeff
My buddy suggested taking off the carburetor to clean the carbon off the bottom side, but another friend suggested the EGR could cause that problem too, as he learned from his Chevy 400. Now I always thought EGR didn't bother Chevy engines too much, but I know with Oldsmobile engines, a clogged EGR can be the difference between that sucker being a complete dog and running like a raped ape. I've been unable to find anything about these Buick motors other than Turbo hi-po info. Does anyone know if these EGRs like to clog up and make the car run kinda crappy, like in the Oldsmobile engines?
Thanks!
Jeff