vacumm line question.
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Joined: Jun 2005
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From: Fairfield, CA
Car: 91camaro rs,2014 silverado 5.3L
Engine: 5.7Lcarb,5.3L
Transmission: 700-r4, 6L80
Axle/Gears: strange 3.73's
vacumm line question.
well i was wondering if anyone knows what this is for. it is located between the distributor and the egr, screws into the intake and has a vacuum line running off it it. (sorry i don't have a picture) when i remove the line it stumbles then the idle goes up. the reason i am asking is the intake i want to put on doesn't have a spot for this. my engine is a 91 305 tbi.
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ANY vacuum line will make the motor run terrible if you take it off. There's nothing unusual about that.
That particular one is the vacuum supply (
what a collection of words) to the HVAC system, so that it can route the air discharge to the floor or windshield or dash vents.
That particular one is the vacuum supply (
what a collection of words) to the HVAC system, so that it can route the air discharge to the floor or windshield or dash vents. 
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From: Calgary, AB, Canada
Car: 1982 Trans-Am
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you could "T" another vacuum line to use it, or drill your new intake manifold.
Thread Starter
Joined: Jun 2005
Posts: 1,245
Likes: 8
From: Fairfield, CA
Car: 91camaro rs,2014 silverado 5.3L
Engine: 5.7Lcarb,5.3L
Transmission: 700-r4, 6L80
Axle/Gears: strange 3.73's
Originally Posted by Sonix
you could "T" another vacuum line to use it, or drill your new intake manifold.
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