definitely yes to the first one, coming down windy hills can be agonizing with an exhaust leak. only sometimes for killing the engine, and as for flub-flubbing... i assume you mean the pfft-pffting.
I think it was the air pump manifold rail. The pump had been disconnected for years. I actually bought the car and brought it home, but ended up giving it back to the seller after some "issues" were discovered.
Hi Wayne, Drop me an email: [email protected]. Have a full write-up on how to remove air injection check valves (w/pictures & part #'s) for 328 you might find useful. Can email it (about 1MB) to you or send you out a CD. Carl
