How can I tell if my fuel pump has been updated?

[Billy7871]

(11-01-2019 )Unilevers Wrote:  you could always just take it apart and look - takes less than a hour and the pump gasket is less than 50 bucks.... you can tell right away by looking at the internals if its been done.

Are you talking a hour to get it out and a hour back in or a hour to do the whole job?