Vacuum Pic 87 4.0 Auto 4Wd

[diablo8511]

Does anyone one have a good picture(s) of their vacuum lines. I'm having a hell of a time putting back together the vacuum system

[cruiser54]

Engine vacuum? I have a photo of a diagram but don't know how to post photos, or I would.

[diablo8511]

Yes engine vac

[diablo8511]

I was trying to compare on my 88 4.0 the guy I bought it from and made some adjustments I'm not sure about it. he removed the EGR valve and plug that port, removed the vacuum tree so that it goes from crankcase to air box . Is this a adjustment I should mimic on my 87

[ParadiseMJ]

These are not the greatest photos I just took them for my own reference when dismantling my engine bay...might give you a starting point.

 

Here's the main "harness"...I call it the spaghetti nest for a reason...

 

 

the smallest line goes from the intake manifold...

 

 

to the fuel press. regulator.

 

 

The two "bent" lines are for the EGR and EGR solenoid.

 

 

The CCV to the back of the VC. Make sure the metered orofice is in place inside the hose...or inside the VC, and make sure it's not kinked. the other end goes into the other forward port on the manifold.

 

 

goes to...

 

 

The "source" line for the cruise control, HVAC controls, and vac reservoir come from here...the larger hose on therear of the intake manifold. Lower right in this pic.

 

 

...and finally, the MAP sensor line goes from the MAP sensor to the rubber plug on the throttle body. One of the holes on the TB plug is a dummy with a rubber nipple on the TB side that serves as a "keeper" (no pic for that)

 

[diablo8511]

Awesome thanks

[codymanche]

i gotta do this too but from scratch haha i got new harnesses but i don't know what goes where and there? I'm trying my best a pic by pic works thanks hopefully there can be more pics for each line.

[ParadiseMJ]

Here you go Cruiser54

 

 

I PM'ed you back. If you have any questions about P'bucket, get back to me. I don't know if I'm much of an instructor.

 

To the OP & other vacuum posters, this is a schematic, your vac lines will be wiggly, not straight & square like this LOL. Just note to and from. Remember the single short little vac line twist tied to the new harness is for the fuel pressure regulator. The CCV hose is a separate part in a separate bag. Everything else goes thru the harness connector...don't break the big RIGID (and brittle) hose for the front of the valve cover.

 

Good Luck.

[cruiser54]

Here you go Cruiser54

 

 

I PM'ed you back. If you have any questions about P'bucket, get back to me. I don't know if I'm much of an instructor.

 

To the OP & other vacuum posters, this is a schematic, your vac lines will be wiggly, not straight & square like this LOL. Just note to and from. Remember the single short little vac line twist tied to the new harness is for the fuel pressure regulator. The CCV hose is a separate part in a separate bag. Everything else goes thru the harness connector...don't break the big RIGID (and brittle) hose for the front of the valve cover.

 

Good Luck.

 

Thanks. I'll mess with the photobucket stuff in the future.