The vacuum pump was Seized at the valve cover opening. That is why I removed the valve cover. Once removed, one side of the slotted connector on the vacuum pump was broken off. Looked and looked for that piece with no result, Awaiting new vacuum pump.
Seal to install the new OEM pump. Thanks for the pics however, the vacuum pump on 2018 Colorado is on the back of the valve cove next to the firewall with about 3 inches of working room. That is the reason for removing the valve cover. Lol. Will follow up once new pump is installed. Again, thanks for your help!
Monday, July 24th, 2023 AT 2:10 AM