Ball Like Vacuum Canister

[lazer2463]

1997 GP SE 3800 - Under the left side front fender there is a round ball-like container with at least 1 vacuum line attached to it. This was damaged in a minor accident. What is this? Is this a necessary component to replace? Or can the vacuum line(s) be plugged and everything will run ok? I'm thinking it has to do with the emission system. Thanks.......

[troy1]

replace it. it serves a reserve.

[BNaylor]

Originally Posted by lazer2463

I'm thinking it has to do with the emission system. Thanks.......

Mainly, it is used to provide a vacuum source to the HVAC system to control the actuators under the dash and keep vacuum up to accessories during low engine vacuum periods like when going up a long steep grade. Around '98 and up the ball reservoir under the fender was eliminated and the reservoir was moved to under the dashboard.