- May 9, 2022
- Reaction score
Yes pump was replaced, technically twice, once alone, and then again with pump filter ( not the canister though). Also, see above comment as I added some new info in response to Michael. I can afford a new cannister atm, and could probably get it installed this week, but I was still holding off a bit to see if I saw any other advice or suggestions. I don't want to spend more money guess and check testing, at the same time, if I got it, it would either fix the issue or rule it out as part of the problem.I'm not sure it works that way on the lib as the OP said his mechanic replaced a leak detection pump. Detection pumps provide plenum (or positive air pressure) to the system- as opposed to engine vacuum as in your scenario.
A look on the bottom side of the hood might provide a diagram of the EVAP system and show the presence- or lack of- a pump. The service manual would also show it: http://www.colorado4wheel.com/manuals/Jeep/KJ/