Mystery Vacuum Line

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Jun 18, 2013 | 04:49 PM

joemccall86

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Joined: Nov 2007

Posts: 18

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Mystery Vacuum Line

The image says it all. '02 Chevrolet Monte Carlo LS. I have it plugged up right now since it was sucking in unfiltered air. I have the base model with no cruise control or anything.

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Jun 18, 2013 | 05:07 PM

03SSLE

Monte Of The Month -- August 2012

Joined: Apr 2011

Posts: 6,074

From: Seattle

It appears as though there should be a rubber 90° elbow on it. From the look of the hose, I'm thinking it may be a vacuum source for actuators in the dash to control flow for the heater/AC.

Last edited by 03SSLE; Jan 2, 2014 at 10:08 PM.

Jun 18, 2013 | 05:50 PM

The_Maniac

Monte Of The Month -- December 2011
Monte Of The Month -- September 2014

iTrader: (2)

Joined: Apr 2010

Posts: 12,601

From: Mentor, Ohio

Depends on the car. I've seen some 3100/3400 cars with a plug there and others with a line connected.

I just went and looked at my wife's '05 Impala (think of it as a 4 door Monte), that connection is plugged on her car. So, I would say pop a plug on it and don't think about it any further.