Recently rebuilt engine need help locating where a few things connect. - Ford Truck Enthusiasts Forums

Go Back  Ford Truck Enthusiasts Forums > Bronco > 1978 - 1996 Big Bronco
Reload this Page >

Recently rebuilt engine need help locating where a few things connect.

Notices
1978 - 1996 Big Bronco  
Sponsored by:
Sponsored by:

Recently rebuilt engine need help locating where a few things connect.

Reply

 
 
 
  #1  
Old 05-17-2018, 03:41 AM
CMcBreezy
CMcBreezy is offline
New User
Thread Starter
Join Date: May 2018
Posts: 5
CMcBreezy is starting off with a positive reputation.
Question Recently rebuilt engine need help locating where a few things connect.

I have a 1988 Ford Bronco with a 302 in it and recently just rebuilt the engine. I almost have it all together but am having a hard time locating where what seems to be a vacuum tube coming out of the purge tank connects to, as well as one of the wire connections. Any help would be greatly appreciated!

Have no idea where this cord goes. It is connected to the purge tank and looks like it just needs a vacuum, but I am not sure where it connects to.


This wire is at the top of the engine and has a negative wire connected to it and cant seem to find where it connects to.
 
Reply With Quote
  #2  
Old 05-18-2018, 07:17 PM
EllieMae94's Avatar
EllieMae94
EllieMae94 is offline
Senior User
Join Date: Dec 2016
Location: Bourbon, MO
Posts: 217
EllieMae94 is starting off with a positive reputation.
The first picture goes to the vapor canister purge valve, located on the square bracket right by the throttle body.
 
Reply With Quote
  #3  
Old 05-19-2018, 06:02 PM
vjsimone's Avatar
vjsimone
vjsimone is offline
Old-Timer
Join Date: Jun 2013
Location: Mall Bay, Newfoundland
Posts: 2,239
vjsimone is gaining momentum as a positive member of FTE.vjsimone is gaining momentum as a positive member of FTE.
Originally Posted by CMcBreezy View Post


This wire is at the top of the engine and has a negative wire connected to it and cant seem to find where it connects to.
What are the colors of the wires to the connector ?
 
Reply With Quote
  #4  
Old 05-20-2018, 07:12 PM
CMcBreezy
CMcBreezy is offline
New User
Thread Starter
Join Date: May 2018
Posts: 5
CMcBreezy is starting off with a positive reputation.
One of the wires is Green with two Black stripes, and the other wire is black with two white stripes.
 
Reply With Quote
  #5  
Old 05-20-2018, 07:14 PM
CMcBreezy
CMcBreezy is offline
New User
Thread Starter
Join Date: May 2018
Posts: 5
CMcBreezy is starting off with a positive reputation.
Originally Posted by vjsimone View Post
What are the colors of the wires to the connector ?
One of the wires is Green with two Black stripes, and the other wire is black with two white stripes.
 
Reply With Quote
  #6  
Old 05-20-2018, 07:19 PM
CMcBreezy
CMcBreezy is offline
New User
Thread Starter
Join Date: May 2018
Posts: 5
CMcBreezy is starting off with a positive reputation.
Originally Posted by EllieMae94 View Post
The first picture goes to the vapor canister purge valve, located on the square bracket right by the throttle body.
The vapor canister there but the check valve isn't on there. I just ran it straight to the vacuum tree, will that work?
 
Reply With Quote
  #7  
Old 05-20-2018, 07:32 PM
vjsimone's Avatar
vjsimone
vjsimone is offline
Old-Timer
Join Date: Jun 2013
Location: Mall Bay, Newfoundland
Posts: 2,239
vjsimone is gaining momentum as a positive member of FTE.vjsimone is gaining momentum as a positive member of FTE.
Originally Posted by CMcBreezy View Post
One of the wires is Green with two Black stripes, and the other wire is black with two white stripes.
I believe that is for your knock sensor.
And there is probably a stud near by for that ground lug.
there is usually a stud at the rear of the intake manifold, twards the drivers side.
This Orange wire lug is a ground for the ECA.... very important ground. This ECA computer has at the least 3 grounds, on of them connects to the battery, that one is important as well.



 
Reply With Quote
  #8  
Old 05-20-2018, 10:35 PM
vjsimone's Avatar
vjsimone
vjsimone is offline
Old-Timer
Join Date: Jun 2013
Location: Mall Bay, Newfoundland
Posts: 2,239
vjsimone is gaining momentum as a positive member of FTE.vjsimone is gaining momentum as a positive member of FTE.
Originally Posted by CMcBreezy View Post
The vapor canister there but the check valve isn't on there. I just ran it straight to the vacuum tree, will that work?
You may have 2 small ports under your Throttle Body, these are for the lines to your Charcoal Canister, those 2 "Y" together into one line going to the Canister. Some have 2 ports on the Canister, then 2 lines would go from the Canister to the Thottle Body ports.

Probably not a good idea to run a line from the Canister to the vacuum tree.

The Canister vent hoses are not actually vacuum lines.

Is your vacuum diagram still visable under the hood somewhere ?
 
Reply With Quote
  #9  
Old 05-20-2018, 10:55 PM
vjsimone's Avatar
vjsimone
vjsimone is offline
Old-Timer
Join Date: Jun 2013
Location: Mall Bay, Newfoundland
Posts: 2,239
vjsimone is gaining momentum as a positive member of FTE.vjsimone is gaining momentum as a positive member of FTE.
You can see the two ports on this Trottle Body, bottom of photo.

 
Reply With Quote
  #10  
Old 05-20-2018, 10:59 PM
vjsimone's Avatar
vjsimone
vjsimone is offline
Old-Timer
Join Date: Jun 2013
Location: Mall Bay, Newfoundland
Posts: 2,239
vjsimone is gaining momentum as a positive member of FTE.vjsimone is gaining momentum as a positive member of FTE.
Originally Posted by EllieMae94 View Post
The first picture goes to the vapor canister purge valve, located on the square bracket right by the throttle body.
I don't believe the 5.0L had a Canister Purge Solenoid, just the 5.8L & 7.5L.
 
Reply With Quote
  #11  
Old 05-20-2018, 11:05 PM
EllieMae94's Avatar
EllieMae94
EllieMae94 is offline
Senior User
Join Date: Dec 2016
Location: Bourbon, MO
Posts: 217
EllieMae94 is starting off with a positive reputation.
I agree, I wouldn't hook it up to the vacuum tree. My '94 5.0 had the solenoid, perhaps not all years had one.
 
Reply With Quote
  #12  
Old 05-20-2018, 11:46 PM
vjsimone's Avatar
vjsimone
vjsimone is offline
Old-Timer
Join Date: Jun 2013
Location: Mall Bay, Newfoundland
Posts: 2,239
vjsimone is gaining momentum as a positive member of FTE.vjsimone is gaining momentum as a positive member of FTE.
Originally Posted by EllieMae94 View Post
I agree, I wouldn't hook it up to the vacuum tree. My '94 5.0 had the solenoid, perhaps not all years had one.
The 5.0L used them from 1991 on. The 90, 89, 88, 87, 86, & 85 EFI 5.0L did not.
 
Reply With Quote
  #13  
Old 05-28-2018, 09:59 PM
CMcBreezy
CMcBreezy is offline
New User
Thread Starter
Join Date: May 2018
Posts: 5
CMcBreezy is starting off with a positive reputation.
Thanks everyone for their replies, it's up and running correctly now! Locating that knock sensor was a bit of trouble since the location is in the back of the engine, but finally found it.
 
Reply With Quote
 
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
1986F150six
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
6
10-11-2014 01:41 PM
sr23
Excursion - King of SUVs
24
06-05-2014 09:23 PM
Bigjht
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
3
04-20-2007 05:00 PM
greenexplorer
2.6, 2.8, 2.9, 4.0 & SOHC 4.0 V6
0
11-03-2003 10:00 PM
jowilker
1967 - 1972 F-100 & Larger F-Series Trucks
6
11-09-2002 09:50 PM


Thread Tools
Search this Thread
Quick Reply: Recently rebuilt engine need help locating where a few things connect.


Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.