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Need vacuum diagram for 1986 T-Bird hot air intake exchanger. Repairman lost several hoses from intake to air filter canister.

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  • brianmmilles Sep 19, 2010

    sorry. It is a 3.8 L V6 TBI

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Need to know the size of engine ??

Posted on Sep 13, 2010

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I need the vacuum diagram for 1986 ford truck with a300 6cil


Short of a Haynes or Chilton repair manual for pickups covering your year's truck, I don't know if you could find a vacuum diagram easily on the internet. However a google search might give you a strand of hope. That was about the year that ford (and all of them to be sure, to some extent or another) went crazy with vacuum controlled emissions and operations. As soon as they grudgingly accepted fuel injection over carburetors as the reality, all those crazy vacuum diagrams disappeared. They met emission regulations through better computer management operations. Sigh, I'm still reliving the nightmare of electronically controlled carburetors (feedback carburetors, as your ford is called-works real good when it is working good) via my 1987 sentra with two solenoids in the carburetor for fuel-air mixture control- now I'm looking for a replacement carburetor. You would not believe the virtual array of vacuum lines on my sentra. They even included a long stack of metal tubes across the top of the engine, lol.

Anyway, by now that truck is so old, what do you need beyond the brake booster hose, the vacuum advance to the distributor, if you have a MAP sensor equipped, that is a straight manifold tap, and then a tap for the egr valve, maybe controlled by a thermal switching valve-you know, when the coolant is hot, the valve switches air, or vacuum really, to the egr valve. Your charcoal canister would have, I think, a manifold vacuum hose. I might be missing a few, but you might be able to struggle through it. If you have a working smog pump, maybe called an air pump, you will really need a vacuum diagram. There should be several older ford truck enthusiasts forums that you could join. Somebody would surely have it.

Mar 06, 2015 | Ford Cars & Trucks

1 Answer

Need Vacuum Hose diagram for 1986 Celica GTS


I found lots of info for you, hope it helps, you will probably like the last one the best:

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Dec 07, 2013 | Cars & Trucks

1 Answer

How to connect vacuum hose from/to air filter - Camry 2003


Usually you wouldn't connect a vacuum hose to the air filter, but if its a DIY job your after you would need to get the male connectors and some other hardware to do a custom job (drilling required) otherwise to have the same effect you could just connect a vacuum hose to the Intake Manifold or throttle body.

The Intake manifold usually has some spare slots for small vacuum hoses.

To locate follow the air filter box tube back to the throttle body, the throttle body, the intake is directly off this and connects to the engine. see diagram

Oct 24, 2012 | 1992 Toyota Paseo

1 Answer

I need a secondary air management system diagram for an 87 cadillac deville. the diagram i need is the one where there is a filter gm pn:a224c is located in the fresh air inlet hose going to the air pump.


The A.I.R. (Air Injection Reaction) System was included on California-emission equipped vehicles. The system is designed to provide additional oxygen to continue the combustion process after the exhaust gases leave the combustion chamber. The system begins with the outside air inlet, which is a short, L-shaped open-ended rubber hose running from the lower front passenger fender well into the canister. The black plastic round canister is located in the front passenger-side engine compartment, adjacent to the EECS (Evaporative Emission Control System) canister, which looks similiar, but the EECS canister has electrical connectors on the top. While the charcoal canister of the EECS is a sealed unit, the A.I.R. canister has a twist-off lid to access the disposable filter. The inlet hose goes into the canister, air then passes through the charcoal filter, and travels into the outlet hose (also made of black rubber), which then connects directly to a metal tube coming up the front of the engine. Please contact me if you need a diagram or photos.

Apr 06, 2012 | Cars & Trucks

1 Answer

My 1987 deville has been missing the intake hose that brings fresh air into the air pump. the hose before the inline filter is the part i need but can't determine if anything else is missing as w


The A.I.R. (Air Injection Reaction) System was included on California-emission equipped vehicles. The system is designed to provide additional oxygen to continue the combustion process after the exhaust gases leave the combustion chamber. The system begins with the outside air inlet, which is a short, L-shaped open-ended rubber hose running from the lower front passenger fender well into the canister. The black plastic round canister is located in the front passenger-side engine compartment, adjacent to the EECS (Evaporative Emission Control System) canister, which looks similiar, but the EECS canister has electrical connectors on the top. While the charcoal canister of the EECS is a sealed unit, the A.I.R. canister has a twist-off lid to access the disposable filter. The inlet hose goes into the canister, air then passes through the charcoal filter, and travels into the outlet hose (also made of black rubber), which then connects directly to a metal tube coming up the front of the engine. Please contact me if you need a diagram or photos.

Mar 13, 2012 | Cars & Trucks

1 Answer

I need a vacuum line diagram fo a 1996 Chevy Lumina, 3.1. One line that is not connected to anything, is located at the top of the engine.


Sorry I don't have the diagram, but I do have a diagram of the engine and component locations. Your vacuum system is fairly simple. You have a MAP sensor attached to the air cleaner. I have pasted a picture below. It has one electrical connector and one vacuum hose that goes to the intake manifold or the throttle body.
Behind the right headlight is your evap canister. This will have a hose or line running to the fuel tank. Then it will have another hose going to the purge valve. The purge valve should be close by and it has a connector plus another hose that goes to the intake manifold.
Then you have the PCV hose that goes from the PCV valve in the valve cover to the air cleaner or intake manifold. I think yours just has a hose from the air cleaner and the rest is internal.
There is one more vacuum hose, and that is the bog one that goes from the intake manifold (or throttle body--looks to me like there are a couple of vacuum ports on the back side of the throttle body, and there may be a "T" on one of the hoses) to the brake booster. It this one was off, the engine would not run, as the vacuum draw is large. Please let me know if you cannot figure it out from these instructions and provide a picture, if you can.

MAP sensor:
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purge valve:
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Oct 30, 2011 | 1996 Chevrolet Lumina Mini

1 Answer

1986 fiero 2.8l vacuum line diagram


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Hope this helps. A note though, the forward-most valve cover gets fresh, filtered air from the snorkel tube that comes from the air cleaner to the throttle body. A recall changed the source of this fresh air from the pipe along the firewall to the air cleaner, instead sourcing it from the snorkel tube in a futile attempt to prevent engine fires. The rear-most valve cover contains the PCV valve and goes directly to the bottom of the intake plenum.
The "Elek Vac Reg" in the picture is actually called the EGR vacuum control solenoid and it's 'diagnostic' switch. the hose that looks like it goes nowhere should actually be attached to the smaller pipe that runs along the firewall with the 'old, pre-recall' PCV fresh air pipe to the sir cleaner. This hose was left intact after the recall.
If you have cruise control, I believe it just has one line that gets hooked into a Tee that was installed in the canister's constant vacuum supply.

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Oct 15, 2011 | 1986 Pontiac Fiero

2 Answers

My 1995 subaru legacy lsi cuts out when I rev the engine around 1 rpm. Plus the check engine light is on. I took it to the dealership and they couldn't fix it, but they got a code from the check engine...


code p 0441 refers to evaporative emission (EVAP) system --incorrect flow detected ==== causes --- hose connection/s--- intake leak---EVAP canister purge valve replace the purge valve

May 21, 2017 | 1995 Subaru Legacy

1 Answer

Vacuum Hose


i think that one goes under the air filter cover look under it to see if theres a stem for a hose.

May 07, 2010 | 1996 Chevrolet S-10 Pickup

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