I cannot find the other end of a vacuum-hose routing

i found this diagram....the only f-150 with a 4.2

this was the heading:


1998 ford pickup f150
fig. 7: vacuum diagram (f-150 & van - calibration no. 8-44r-r05 (nlt1) - 4.2l)
courtesy of ford motor co.

Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.

Engine Mechanical problem
1998 Ford F150 6 cyl Two Wheel Drive Automatic
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Where can I find diagrams for hoses and Vacuum lines? I'm replacing the engine and I'ts not in my Hanes manual.

I installed the top intake gasket. I have one vacuum hose I can’t find to reinstall. Could you send me a diagram please?

Your best bet now is to take your vehicle to your local mechanic or find another 1988 Ford like yours and note the location of the vacuum hoses or buy a shop manual. In the future, take a picture of your engine before starting the work to refer to later, as you need it.

i recently had to remove my carbeurator for repair and when i replaced it i think i have crossed some vacuum lines because now the engine idles rough especially after it warms up. how do i find out where i went wrong

vacuum line 1997 ford f150 very short elbow on top of intake

The one I think you are refering to you runs to the intake and is well know for dry rotting and causing an engine rough idle.

Can you please tell me where I can find the vacuum hoses on my 1990 Ford f-150 v6?

front of the hood usually is wehre the vacum canister is located. the lines come off of it

Engine Mechanical problem
1989 Ford F150 V8 Two Wheel Drive Manual
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I need a free downloadable diagram for a 5.0 e.f.i. vacum line diagram for whole engine Please help, HELP !!!thanks wendy

chances are your not going to find that for free.

https://www.2carpros.com/kpages/auto_repair_manuals.htm

would be yoru best bet or you could try a local library for diagrams, but they wont be as detailed.

I noticed a black vacuum type hose bundled with a red and green hose located to the left against the firewall.The red and green(maybe blue it's faded)connected to two connection points which also have electrical connections.the black hose is not connected to anything and I can't find anywhere it would go,doesn't seen to affect perfornance ,it has a sort of bend in the last couple of inches.I just replaced the upper vacuum tank as it was busted.I had been looking for any other possible leaks and noticed the hose,it is not connected to the vacuum side but goes downward on the left side of the engine.

Is thre any vacuum to it when the engine is running?

With the engine running it does not pull any vacuum.This is a plastic line,there is no swell near the end of it like the ones with rubber boots,just curved near the end .

If it is plastic, chances are it broke and the other end is hidden in a place you can't see it. Have you tried spraying starting fluid around the area where it may have been to see if the RPM's go up? If you do it, be careful. It could catch fire if it hits an area that is hot enough on the engine.

It doesn't appear broken and doesn't seem to have any effect on anything.I have an excellent picture of it but I can't get it to appear here.

I have replaced the DPFE Sensor, EGR Regulator, EGR Valve. Cleaned the intake EGR from the vacuum head checked the vacuum hoses. The only thing that I have noticed is that the green vacuum hose that comes off the EGR is that I can not feel a suction on the hose. Is this normal?

The green line wont have any vacuum until the PCM wants to apply EGR, usually at light throttle cruising.If yyou have access to a vacuum gauge , run a line to the green line (EGR disconnected) so that you can watch the gauge when driving to see if the EGR is being applied.This system also should have an EGR solenoid that could fail keeping it from applying vacuum to the valve

have fuel backfeeding through vacuum line directly into vacuum block

Check the fuel pressure regulator vacuum hose if it has fuel if so the regulator is ruptured.

Engine Performance problem
1985 Ford F150 6 cyl Two Wheel Drive Automatic
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My timing advance is going out or it is out. The truck's performance in town is normal, but no highway speeds. I have narrowed it down to the timing advance. My question is: do i have to replace the whole distributor or is there any other electrical component that regulates the timing advance? The truck has electric ingintion. No vacuum lines.

EEC IV THEORY/OPERATION -1985 Ford Pickup F150
Page 1 of 1
DESCRIPTION
The center of the EEC-IV system is the Electronic Control Assembly (ECA). The ECA receives information from various sensors and switches. Based on information received and the operation program in the ECA's memory, the ECA generates output signals to control engine operation. The calibration module for EEC-IV system is mounted inside the ECA. The ECA is located in the passenger compartment, in one of the following locations: under the center console, under dash on left side of steering column, under passenger seat, or under dash behind right kick panel.
The 2.3L and 5.0L EFI models use the Bosch/Ford Electronic Fuel Injection system (EFI). The EFI system is classified as a multi point, pulse time, speed density, fuel injection system. The EEC-IV computer accepts inputs from various engine sensors to compute the required fuel flow rate necessary to maintain a prescribed air/fuel ratio throughout the entire engine operational range. The computer then outputs a command to the fuel injectors to meter the appropriate quantity of fuel.
The EEC-IV system controls 3 major areas of engine operation: Air/fuel mixture, ignition, and emission control. Additionally the system can control A/C compressor clutch operation and idle speed. The system provides self-diagnostic capabilities.
On all other models, the air/fuel mixture control is accomplished by use of a feedback carburetor (FBC). The ignition system is controlled by the ECA through a Thick Film Ignition (TFI-IV) module. Ignition timing (advance or retard) and dwell are controlled with this system to improve ignition system performance.
Emission control components controlled by this system include EGR and canister purge. These systems are normally off, but are turned on when the engine is ready to operate with the mixture change caused by EGR and canister purge operation.

Be sure to follow the procedure below to make sure your base timing is set correctly, if not performance will suffer greatly

90ford27 ENGINE/ EMISSIONS DIAGNOSIS SHOP MANUAL- 1983-1990---NOTE ADDED TO UPDATE INITIAL TIMING PROCEDURE
Article No. 90-18B-2
FORD: 1983 EXP 1984-86 LTD 1984-90 CROWN VICTORIA, MUSTANG, TEMPO, THUNDERBIRD 1986-90 TAURUS

LINCOLN-MERCURY: 1983 LN7
1983-84 LYNX 1984-86 MARQUIS 1984-90 CONTINENTAL, COUGAR, GRAND MARQUIS, MARK VII, TOPAZ, TOWN CAR 1986-90 SABLE

LIGHT TRUCK: 1984-90 BRONCO II, BRONCO, ECONOLINE, F-150, F-250, F-350, RANGER 1986-90 AEROSTAR

ISSUE: All 1983 through 1990 vehicles with TFI-IV ignition systems may exhibit spark knock/ping if base ignition timing was set after starting the engine with a remote starter. If the engine is started with a remote starter (start wire "S" terminal disconnected at the starter relay) the ignition module will remain in the start mode (timing retarded). Ignition timing will be incorrectly advanced if base timing is set while the module is in the start mode. The engine must be started with the start wire connected, using the ignition switch to correctly set the base ignition timing. The following Shop Manuals and pages are affected:


See attachment below

have a 93 f150 that keeps losing vacuum to the vent controls inside i tried pluging all the vacuum lines individualy made no difference sprayed around the intake for leaks found none its got 18lbs at idle but soon as you get the motor on a little pull in loses vacuum any ideas

It's common to lose vacuum to the heater controls when under acceleration. The mode doors are typically spring-loaded to default to the defrost position so even though your feet might freeze, the windshield will be clear. First check to see if there is any type of storage canister that may have a leaking check valve. The valve / canister will be in the small hose going to the heater controls. If all you find is a tiny check valve, replace it with a larger one with a built-in storage canister. I know you can get them at the Chrysler dealer's parts department for the same symptom. Their original valve was about the size of a stack of three nickels. The replacement is about 1 1/2" in diameter and about 2" long. You can probably find them in salvage yards too.

Can I buy A Vacuum harness for my truck. a squirell got under my hood and had his/her way with my wiring harness and some other important wires as well as three vacuum lines that are incased in a loom, two of them are red and one is white in color. does it matter which one i connect them to or can i buy another vacuum harness

You may find it in a junk yard...follow the vacuum diagram under the hood to install new hoses if need be.

1989 Ford F150 6 cyl Four Wheel Drive Automatic

I am overhauling my truck and have forgotten to label the all vacum hoses. I have forgotten where to coneect them, I just need to know where I can find a diagram to just connect them back in their proper place, without paying for alldata.com.

See and process my profile......They are available at most parts stores. Keepers for ever!

Love, Turddog