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5.0L (1979-1995) MustangTechnical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.
The smog pump basically helps recycle gasses through your motor because it is better for the environment... Don't know where you're located, ubt mosst places it is not legal to take this off. I personally live in Oklahoma and we do not have inspectiosn here anymore, so it's ok. Getting rid of it is very easy. You literally unbolt the pump (it will be on the pass side of the motor, the lower pulley... the alternator is over it. Once you pull it off, follow the lines that are connected to it, and cut them where you feel is out of site, and plug them. There's also the charcoal box on the pass framerail under your mass air meter. You'll take this off also. Then all you have to do is buy a shorter belt, and you are set.