89 2.8 mpfi vac hose?
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Junior Member
Joined: Jul 2014
Posts: 55
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Car: 89 RSt-top
Engine: 2.8 mpfi
Transmission: auto
89 2.8 mpfi vac hose?
Hey everyone..
Been pluggin away at the car in some spare time.. Got it runnin alot better still missing the vac controller. But may have a line on new ones.. (may)..
But my issue is the vac line that goes to the back of the intake manifold (passenger side) has been disconected and plugged with a screw..lol..not sure where it is supposed to go.. If some one can post a pic of there vac hose routeing it would be a huge help to me..cant figure out for the life of me where it goes to
Been pluggin away at the car in some spare time.. Got it runnin alot better still missing the vac controller. But may have a line on new ones.. (may)..
But my issue is the vac line that goes to the back of the intake manifold (passenger side) has been disconected and plugged with a screw..lol..not sure where it is supposed to go.. If some one can post a pic of there vac hose routeing it would be a huge help to me..cant figure out for the life of me where it goes to
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Joined: Nov 2008
Posts: 2,435
Likes: 1
From: Central Florida
Car: 89 Camaro RS running MS2X
Engine: .48/.60AR T3/T4 2.8L V6
Transmission: Rebuilt 700R4 2500 stall
Axle/Gears: Next to break...
Hey everyone..
Been pluggin away at the car in some spare time.. Got it runnin alot better still missing the vac controller. But may have a line on new ones.. (may)..
But my issue is the vac line that goes to the back of the intake manifold (passenger side) has been disconected and plugged with a screw..lol..not sure where it is supposed to go.. If some one can post a pic of there vac hose routeing it would be a huge help to me..cant figure out for the life of me where it goes to
Been pluggin away at the car in some spare time.. Got it runnin alot better still missing the vac controller. But may have a line on new ones.. (may)..
But my issue is the vac line that goes to the back of the intake manifold (passenger side) has been disconected and plugged with a screw..lol..not sure where it is supposed to go.. If some one can post a pic of there vac hose routeing it would be a huge help to me..cant figure out for the life of me where it goes to
Also
If I recall, there have been numerous threads here on the V6 boards asking the very same question. Member

Joined: Jun 2012
Posts: 231
Likes: 1
From: Fl
Car: Sport Coupe
Engine: 3.4 MPFI
Transmission: WC T5
Axle/Gears: 3.42
Re: 89 2.8 mpfi vac hose?
if you are talking about the vac's on the upper plenum, the passenger one goes to the hvac, the driver side (the big one) goes to the brake booster. The one that comes off of your actual lower intake manifold goes into a tree kind of thing that goes all over the place. When you look at the vac diagram, it doesn't include the two that are on the top of the upper plenum.
Banned
Joined: Nov 2008
Posts: 2,435
Likes: 1
From: Central Florida
Car: 89 Camaro RS running MS2X
Engine: .48/.60AR T3/T4 2.8L V6
Transmission: Rebuilt 700R4 2500 stall
Axle/Gears: Next to break...
Just figured I would throw this up here for you. Don't know if it helps but its the factory vacuum diagram for the 2.8 on my hood.
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