When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
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.
It's the A/C reserve canister. It hooks to a check valve with a hose that runs to the dist block behind the intake and to the Vac line that runs into the passenger compartment.
Both spots on there are taken. One is going into the passenger compartment, and the other one's connected to this thing? What's this? Where's it's vacuum line supposed to go?
Actually the round ball is the A/C Vac canister. I knew it was under the right fender but Ive never had one out. I'm not sitting at my shops computer so I don't have a Vac diagram handy. I can't tell you for sure what it is. I blow it out of my azz from time to time.