What is underneath the ignition coil ?

[gilly]

Ok here's the red vac lines I think you are referring to and some general shots of the engine bay for those US guys to see the differences. I'm sure someone will be able to identify where these lead to from the pics for you...

 

[gilly]

One is obviously the fuel pressure reg, not sure where the other leads to

 

[2000StreetRod]

Vacuum lines

The photos were a big help Gilly! I wish that my engine looked as clean as yours! I should order some powder coated valve covers to dress mine up a little.

I believe that the photo below identifies the vacuum lines in question.

Red arrow: Connection to upper intake manifold port located at right rear. Single large hose connection actually has three internal semi-rigid hoses.

Green arrow: One of the three lines is divided into two lines making a total of 4 lines in the bundle

Yellow arrow: Two vacuum lines turn toward left side of engine compartment joining the one from the EVR to the EGR valve. One goes to the fuel pressure damper (regulator in your case). The other goes to the lower left front of vehicle below the battery. I think it is connected to the fuel vapor management valve. Two vacuum lines turn toward the right side of engine compartment. One goes to the EVR. The other goes to the lower right front of vehicle below the air filter enclosure mount. I think it is connected to a metal bulb that acts as a vacuum reservoir.

Blue arrow: The connections to the EVR

Black arrow: The line going to the vacuum reservoir bulb

The EVR electrical connector is above and left of the blue arrow in the photo.

Let me know what else you need. My engine will probably be apart for the next few weeks while I assess and correct my timing chain issues.

 

[2000StreetRod]

VIS control

I forgot that your 1997 model also has a variable induction system. Somewhere under your intake manifold there will be an inlet air control valve with an electrical connection to the PCM, a vacuum connection to a vacuum source and a vacuum connection to the vacuum motor that actuates the variable intake runners. I haven't been able to find a photo of either component.

 

[2000StreetRod]

VIS photos

I found a photo of the inlet air control valve. It is located aft of the EVR shown in the photo below.

I still have not found a photo showing the location and routing of the vacuum source.
The photo below shows the VIS motor located aft of the IAC valve.

The disconnected vacuum line from the inlet air control valve is shown in the photo.

Either of the above components may be hard to obtain since they were only used on 1997 and 1998 models in the U.S.A.

 

[norimus]

Bloody awesome gilly.. Thanks mate ! and thanks street.. the pics are worth a million.. now i can see pretty well what burned and what needs to be replaced. One question though.. the red vacuum tubes .. ( i know it sounds silly) are they Ford genuine parts or what sort of tube should I use if a couple (the one to the EVR and the one to the vacuum reservoir) got affected ?

 

[2000StreetRod]

flexible vs semi-rigid vacuum lines

I believe that the semi-rigid vacuum lines are less apt to crack with age, less susceptible to heat and take up less room than the flexible lines. Here in the states we can buy the semi-rigid tube by the foot and cut to the desired length. However, either type would be functional. You'll also need some adapters to get port and tube diameters to match. I have no experience with ordering such things from Ford but I suspect they are available and relatively expensive.

 

[gilly]

I'm not sure where you would buy those - I would start with a visit to Repco or Bursons as they supply the auto trade, I've also found Bursons the cheapest for new parts for the Explorer too, without buying online. Ford - I don't even bother calling any more. They wanted about $800 for an IAC valve last time we spoke.

 

[norimus]

I'll try Repco because we don't have Burson in WA.. there other shops too but damn expensive.. anyway.. I looked closer and I found another gizmo underneath the coil.. unfortunatelly affected by fire too so it is hard to say what it is.. For some reason I cannot attach pictures to my posts so I have put the pics on a different website: www.largotech.com.au. There you can see two pics of the gizmo with one clearer.. it looks like something with a thread and a screwing cap which was supposed to be connected to something which now is no longer connected.. Any ideas ?

Thanks a lot ! N

 

[2000StreetRod]

Corrugated housing

You have to be a paid member (elite) in order to post attachments.

The photos were not very clear but it may be what is left of the corrugated housing for the vacuum lines. See the photo in my post #23. The end identified with the red arrow attaches to the upper intake manifold and contains three vacuum lines. On mine one of the lines splits into 2 lines where the green arrow is. Since you have VIS, you may have another split from one to two lines with a total of 5 vacuum lines in the housing.

I can't tell for sure but it looks like you need a new fuel rail and injectors on that side.

 

[norimus]

Hi Street !

I'll try to take some more clear pics ..I have already ordered two injectors and few other things. Do you know an online shop that sells the vacuum tubing in US ? What I wanted to show there is a little gizmo that looks like a threaded end with a screwing cap on it which has and a T-shaped end. I'll take some more pics and send them to you this evening (here).