Should my smog pump be this loud?

Question

So I replaced my smog pump yesterday. Sure enough, the old one is all siezed up. Now, when I start my car, I hear the pump revving like crazy. Is this normal? Is this just the difference between a $400 factory pump and my $130 Autozone pump? I don't remember the old pump every making that noise, but then again, I've needed to replace it for a while now.

Answer 1

It should be no louder than the OEM unit that was installed on your car originally. It may take a little time to breakin if the carbon vains were not seated in at the overhaul facility. Go back to Autozone and discuss this with them. Also, is the air intake hooked up. Noise can also come from the intake side if it isn't connected to the air cleaner.