Quote Originally Posted by tom4bren View Post
Don't know about the brown ones but the blue ones now have a spring in them so they don't rattle ... even when they are working properly. Why oh why can't the enginerds leave well enough alone. It worked without the spring ... didn't need to 'fix' it.
I just changed mine yesterday - pulled the brown and blue one (Napa brand), replaced it with this BLACK Purolator. The used brown/blue one had a type of garbled rattle, I could definitely still hear "something" rattling inside, but like it was full of oil and muffled.