1992 Vacuum line on air box 4L | Ford Explorer - Ford Ranger Forums - Serious Explorations

  • Register Today It's free! This box and some ads will disappear once registered!

1992 Vacuum line on air box 4L

Rogue1987

Member
Joined
January 24, 2008
Messages
30
Reaction score
0
City, State
St. Louis, Missouri
Year, Model & Trim Level
1992 Explorer Eddie Bauer
Howdy all. i have a 1992 explorer with the 4.0L engine. On the filterbox there are two lines which I believe to be vacuum lines. One goes down between the filter box and the frame, the other of which has broken off and for the life of me I cannot find where it went. based on the way the line was prebent, it goes towards the drivers side and towards the engine. Can anyone give me an idea of where it should connect to? I don't have any problems with the truck running, but I am trying to straighten this stuff out before I get into anything bigger.


Thanks!
 
<

Join the Elite Explorers $20 Gets rid of the ads!

Elite Explorer members see no advertisements, no banner ads, no double underlined links, can add their own profile photo, upload photo attachments in all forums, and Media Gallery, create and save more private conversations, and more. Join Today. Your support is greatly appreciated.




BP_93explorer

Well-Known Member
Joined
March 2, 2006
Messages
224
Reaction score
0
City, State
Bedford, Tx
Year, Model & Trim Level
1993 Sport 2wd (GONE)
like this? the one with the yellow strip goes down somewhere. The other one connects to the gaggle of lines circled in red. Mine's a '93 though
PICT0539-1.jpg
 
<



Blacksheep Josh

Slinky+Escalator=Fun
Joined
July 31, 2006
Messages
3,676
Reaction score
13
City, State
Statesboro, GA
Year, Model & Trim Level
'01 Ford Ranger, RIP 93 X
i have the lines coming off the airbox plugged, as i have a conical air filter. i can tell no difference with them plugged. i know only one of them is connected to the vaccuum, the other isn't. so if your engine isn't idling to wildly, i woudlnt' worry about it.
 
<



Rogue1987

Member
Joined
January 24, 2008
Messages
30
Reaction score
0
City, State
St. Louis, Missouri
Year, Model & Trim Level
1992 Explorer Eddie Bauer




This is your picture, I hope you don't mind me editing it. I have that vacuum line, I just don't know where its supposed to connect to. I have the hose...just no idea where it goes.
 
<



ParkerRocker

Well-Known Member
Joined
March 9, 2008
Messages
182
Reaction score
0
City, State
Hayden, ID
Year, Model & Trim Level
92 Explorer Sport
i too was curious about what these are for. What is the vacume line for? what about the other one? it looks like there might be a sensor in the air box?
 
<



Willard

Explorer Addict
Joined
March 16, 2007
Messages
3,175
Reaction score
4
City, State
Bloomington, Indiana
Year, Model & Trim Level
04 Ranger Edge
Those are for warm-air intake when it's cold outside. There is a sensor in the airbox that breaks the connection between the two lines. When the incoming air is excessively cold, that sensor opens up, and drives a vacuum motor down in the intake, and it takes air from right next to the exhaust manifold until it warms up some.
 
<



BP_93explorer

Well-Known Member
Joined
March 2, 2006
Messages
224
Reaction score
0
City, State
Bedford, Tx
Year, Model & Trim Level
1993 Sport 2wd (GONE)
Yeah, that one on the left connects to the gaggle of lines that I circled.
 
<



MrShorty

Explorer Addict
Joined
December 27, 2001
Messages
5,078
Reaction score
16
City, State
Spanish Fork, UT
Year, Model & Trim Level
92 XLT and '87 Bronco II
On my '92, the one from vacuum to the airbox tees into the vacuum line going to the fuel pressure regulator.
 
<



Top