Go Back   Ford F150 Forum - Community of Ford Truck Fans > Pre-1997 F150 > Pre- 1987 / Classic Corner
Sign in using an external account
Register Forgot Password?


Reply
 
 
 
 
Thread Tools Search this Thread Display Modes
Old 04-11-2009, 08:28 PM   #1
Junior Member
 
Join Date: Apr 2009
Posts: 17
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default identify this thing on my truck!

Click the image to open in full size.
What is that thing and where should the missing vacuum hose connect to?
BostonPerformance is offline   Reply With Quote
Old 04-11-2009, 08:42 PM   #2
We'd do it
 
Just call me Sean's Avatar
 
Join Date: May 2008
Location: Orlando,Fl.
Posts: 31,832
Mentioned: 2 Post(s)
Thanked 402 Times in 358 Posts
Feedback Score: 1 reviews
Send a message via Yahoo to Just call me Sean
Default

What year is the truck, and is it fuel injected? It looks like the MAP sensor, and the truck will run horrible if it isn't hooked up. It goes to a port on the vacuum tee on the intake manifold.
__________________
Quote:
Originally Posted by Early Cuyler
Fights begin, fingerprints are took, days is lost, bail is made, court dates are ignored, cycle is repeated.
Just call me Sean is offline   Reply With Quote
Old 04-11-2009, 11:45 PM   #3
Junior Member
 
Join Date: Apr 2009
Posts: 17
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default

I have a 1984 w/ the inline six. The picture is of an item on the passenger's side of the engine bay. there is also a piece below the carburator (did I mention the engine is carbed?) with a connection for a vacuum line that is missing the hose. those go together? the vacuum lines and wiring harness on my truck are ripped to hell.
Will the truck start without that connected?
Because I've not been able to get it to run for more than like ten seconds, and even that only happens 1/10 tries.
Anybody know how to set the idle screw and how to set up the choke (electric choke)
BostonPerformance is offline   Reply With Quote
Old 04-11-2009, 11:47 PM   #4
Senior Member
 
Ranger2F150's Avatar
 
Join Date: Mar 2008
Location: Riverside, OH
Posts: 567
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default

I might be way off base but it resembles a igniton module for the distributor.
Ranger2F150 is offline   Reply With Quote
Old 04-11-2009, 11:52 PM   #5
Junior Member
 
Join Date: Apr 2009
Posts: 17
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default

Anybody got pictures or descriptions of where it connects to and answers to the other questions about adjusting the carb and setting up the choke? I'd like to try to get it running by tomorrow.
BostonPerformance is offline   Reply With Quote
Old 04-12-2009, 01:23 AM   #6
We'd do it
 
Just call me Sean's Avatar
 
Join Date: May 2008
Location: Orlando,Fl.
Posts: 31,832
Mentioned: 2 Post(s)
Thanked 402 Times in 358 Posts
Feedback Score: 1 reviews
Send a message via Yahoo to Just call me Sean
Default

It looks like the MAP sensor to me, it should have 3 wires. Black with a white stripe, orange with a white stripe, and blue with a green stripe. Yes, the truck is carbureted but you have an electronic feedback carburetor, a predecessor to fuel injection. The truck still has a computer which aids the carburetor with information from other sensors. The carb should have a TPS also. The MAP will hook up as I said, but if the port on the carb is at the base that is the same as an intake vacuum port. The underhood vacuum diagram will show where it hooks up to if it's still there, but if it isn't then either area I said is fine. I've heard a good baseline setting for the carb mixture screw is 2 1/2 turns out (I've only done 4 barrels which have 2 mixture screws, so I don't know if the 1 barrel has 1 or 2 screws). Tighten the mixture screw until it bottoms out, but don't crank it in tight or it can be damaged. Count the turns in so you can return it back if it runs worse. Then back the screw out 2 1/2 turns.
__________________
Quote:
Originally Posted by Early Cuyler
Fights begin, fingerprints are took, days is lost, bail is made, court dates are ignored, cycle is repeated.
Just call me Sean is offline   Reply With Quote
Old 04-12-2009, 12:18 PM   #7
Junior Member
 
Join Date: Apr 2009
Posts: 17
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default

To be honest there are a couple of open ports on the carburator with no hoses connected. I was told that the smog system had been removed/bypassed. I've been able to get the truck to start a few times, but it just sputters for a few seconds then dies. i'm really getting frustrated because there's so many loose plugs on the wire harness and loose/missing vacuum hoses.
How do I set the choke up right?
*EDIT:
here's a pic of one of the open ports on the carb.
Click the image to open in full size.
BostonPerformance is offline   Reply With Quote
Old 04-12-2009, 01:13 PM   #8
We'd do it
 
Just call me Sean's Avatar
 
Join Date: May 2008
Location: Orlando,Fl.
Posts: 31,832
Mentioned: 2 Post(s)
Thanked 402 Times in 358 Posts
Feedback Score: 1 reviews
Send a message via Yahoo to Just call me Sean
Default

Cap off all unused open ports, it may help it start and will help how it runs. Make sure the electric choke has power, book says with the engine running. Have someone floor the pedal (engine not running and cold) and see if the choke closes completely. The choke has 3 screws that are loosened to rotate the choke housing to adjust, if it's adjustable. You set the housing to the specified mark as shown on the emissions label. If the choke doesn't work properly at the specified mark then the choke spring in the housing is bad or there are problems with the choke parts themselves.
__________________
Quote:
Originally Posted by Early Cuyler
Fights begin, fingerprints are took, days is lost, bail is made, court dates are ignored, cycle is repeated.
Just call me Sean is offline   Reply With Quote
Old 04-12-2009, 07:28 PM   #9
Junior Member
 
Join Date: Apr 2009
Posts: 17
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default

Problem is I can't find that "specified mark"
BostonPerformance is offline   Reply With Quote
Old 04-12-2009, 07:37 PM   #10
We'd do it
 
Just call me Sean's Avatar
 
Join Date: May 2008
Location: Orlando,Fl.
Posts: 31,832
Mentioned: 2 Post(s)
Thanked 402 Times in 358 Posts
Feedback Score: 1 reviews
Send a message via Yahoo to Just call me Sean
Default

I thought that might be a problem. You can try this, but the truck must be completely cold. I think you should probably pump the gas 3 times first since that usually engages the choke, then twist the housing until the choke just closes. Then start the truck and watch the choke to make sure it opens completely as the truck warms up.
__________________
Quote:
Originally Posted by Early Cuyler
Fights begin, fingerprints are took, days is lost, bail is made, court dates are ignored, cycle is repeated.
Just call me Sean is offline   Reply With Quote
Old 04-12-2009, 07:37 PM
 
 
 
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Help identify this connector Dominick 1987 - 1996 F150 6 01-17-2009 06:32 PM
F150í88: need to identify parts. mjlabas 1987 - 1996 F150 2 10-11-2008 08:03 PM
Can you identify these? iRmARK88 Super Duty Forum 10 02-26-2008 03:41 AM
Can't identify what I have chuckgardner General F150 Discussion 0 09-26-2007 09:51 AM
What embarassing thing has your spouse done with your truck? DiscountPowerParts General F150 Discussion 8 11-24-2006 06:19 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Join F150 Forum

 

The Mustang Source
All times are GMT -4. The time now is 09:15 PM.


Copyright © 2006 - 20011 F150forum.com
This site is in no way affiliated with the Ford Motor Company.