need vacuum to start car?
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Joined: Nov 2009
Posts: 453
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From: Saint Louis, MO
Car: 86 Firebird LG4
Engine: 350
Transmission: 700r4
Axle/Gears: 3.23 limited slip
need vacuum to start car?
I don't know anything about the function of vacuum so I wanted to know what parts of the vacuum needs to be hooked up to start the car right.
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Joined: Jan 2000
Posts: 20,981
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: need vacuum to start car?
Vacuum is produced by the engine sucking air out of the manifold, so there isn't any vacuum until the engine starts.
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Joined: Jan 2000
Posts: 20,981
Likes: 11
From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: need vacuum to start car?
All of them? That's almost never a good idea. The brake booster and PCV need vacuum. So does the MAP sensor with computer-control, or the distributor on a non-computer car. Without vacuum you'll lose HVAC control on cars originally equipped with A/C.
That's not even counting the things that people traditionally eliminate out of ignorance.
That's not even counting the things that people traditionally eliminate out of ignorance.
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theshackle
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Mar 5, 2017 06:37 PM
