Only the "Required" Vacuum components/Lines
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Trailering
Joined: Nov 2022
Posts: 16
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Only the "Required" Vacuum components/Lines
I bought a 1979 F150, 351m, 4wd, auto, ac, ps. The prev owner hired a master mechanic (well he claimed he was anyway), to swap out the carb with a TBI, they installed a brand called Affordable Fuel Injection. It came with complete electric fuel pump, TBI, electronics, ignition as a complete kit.
The engine runs rough when in gear, but idles and revs up great.
I'm now thinking its a vacuum issue, because the so called master mechanic removed several vacuum components, I assume it for the emissions.
So my questions, I'm okay with bypassing the emissions because those components are old anyway and may the issue with vacuum leaks.
My question:
Does anyone have a diagram of only the "Required" components and vacuum lines I would need to get my truck running smooth again?
Thanks in advance
David
The engine runs rough when in gear, but idles and revs up great.
I'm now thinking its a vacuum issue, because the so called master mechanic removed several vacuum components, I assume it for the emissions.
So my questions, I'm okay with bypassing the emissions because those components are old anyway and may the issue with vacuum leaks.
My question:
Does anyone have a diagram of only the "Required" components and vacuum lines I would need to get my truck running smooth again?
Thanks in advance
David
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Joined: Feb 2004
Posts: 10,856
Likes: 2,621
From: The Shenandoah Valley
A/C if present on truck
Distributor if it has a vacuum advance canister ... uses ported vacuum normally
PCV in valve cover
P/B booster if equiped
C/C if equiped
VAC Gauge in cab for monitoring manifold vacuum as you drive
Distributor if it has a vacuum advance canister ... uses ported vacuum normally
PCV in valve cover
P/B booster if equiped
C/C if equiped
VAC Gauge in cab for monitoring manifold vacuum as you drive
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