90 YJ back with the gremlins. - JeepForum.com

Reply
 
LinkBack Thread Tools
post #1 of 26 Old 11-05-2013, 07:08 PM Thread Starter
boatsandhose
Registered User
1990 YJ Wrangler 
 
Join Date: Jan 2013
Location: North Logan
Posts: 136
90 YJ back with the gremlins.

Had some troubles before, thought it was good, but now I'm back scratching my head.

There are 3 wires that fried when I tried to start it the other day:
-One underneath the battery tray that got trail repaired with the only wire we had; 18 gauge speaker wire. I've already replaced that one with 12 gauge.
-One that goes from the ECU, out the firewall, along the harness and down under the battery tray and I believe connects to the starter solenoid.
-One that goes from the junk under the battery tray along the harness and clear over to a pin on the bulkhead connector.

Having troubles diagnosing this one. I have a hunch it was one of the wires on the solenoid that wasn't connected all the way and was arcing. The nut on the wire wasn't super loose, but wasn't very tight.

Right now I'm attempting to replace these wires but am having trouble pulling the pin out of the bulkhead. Is there a special tool for this?

Here are some pics:












Any help is appreciated, thanks!


90 YJ locked f/r 37s d30 F8.8
boatsandhose is offline  
Sponsored Links
Advertisement
 
post #2 of 26 Old 11-06-2013, 03:02 AM Thread Starter
boatsandhose
Registered User
1990 YJ Wrangler 
 
Join Date: Jan 2013
Location: North Logan
Posts: 136
Bump

Sent from my Galaxy Nexus

90 YJ locked f/r 37s d30 F8.8
boatsandhose is offline  
post #3 of 26 Old 11-06-2013, 05:52 AM
Que89YJ
Web Wheeler
1989 YJ Wrangler 
 
Join Date: Apr 2008
Location: Detroit
Posts: 21,400
I think this is what you are looking for:
http://www.jeepforum.com/forum/f12/r...d-pins-940109/

I would make sure you have the problem nailed down. That is because of a dead short not a loose terminal.
Que89YJ is offline  
post #4 of 26 Old 11-06-2013, 07:53 AM Thread Starter
boatsandhose
Registered User
1990 YJ Wrangler 
 
Join Date: Jan 2013
Location: North Logan
Posts: 136
Thanks. I do have that blue "lock" thing on mine so I'll play with that. What is the best way to find the dead short?

Sent from my Galaxy Nexus

90 YJ locked f/r 37s d30 F8.8
boatsandhose is offline  
post #5 of 26 Old 11-06-2013, 09:01 AM
Que89YJ
Web Wheeler
1989 YJ Wrangler 
 
Join Date: Apr 2008
Location: Detroit
Posts: 21,400
Do you have a multimeter? You need to be able to measure resistance to find out what went wrong. If you dont have one they are cheap enough. HF and Radio Shack have them for $20 or so.
Que89YJ is offline  
post #6 of 26 Old 11-06-2013, 09:22 AM Thread Starter
boatsandhose
Registered User
1990 YJ Wrangler 
 
Join Date: Jan 2013
Location: North Logan
Posts: 136
I do have a multimeter. Should I check it at the bulkhead?

Sent from my Galaxy Nexus

90 YJ locked f/r 37s d30 F8.8
boatsandhose is offline  
post #7 of 26 Old 11-06-2013, 09:52 AM
Que89YJ
Web Wheeler
1989 YJ Wrangler 
 
Join Date: Apr 2008
Location: Detroit
Posts: 21,400
Yes. Disconnect the battery lead and see if you have a short from that line.
Que89YJ is offline  
post #8 of 26 Old 11-06-2013, 11:38 AM Thread Starter
boatsandhose
Registered User
1990 YJ Wrangler 
 
Join Date: Jan 2013
Location: North Logan
Posts: 136
Ok thanks I'll go at it today and post what I find out.

Sent from my Galaxy Nexus

90 YJ locked f/r 37s d30 F8.8
boatsandhose is offline  
post #9 of 26 Old 11-06-2013, 04:03 PM Thread Starter
boatsandhose
Registered User
1990 YJ Wrangler 
 
Join Date: Jan 2013
Location: North Logan
Posts: 136
Was able to get the lock out, but I can't get the pin out. Pushing down on the top of the pin and pull the wire right?

90 YJ locked f/r 37s d30 F8.8
boatsandhose is offline  
post #10 of 26 Old 11-06-2013, 05:44 PM
Que89YJ
Web Wheeler
1989 YJ Wrangler 
 
Join Date: Apr 2008
Location: Detroit
Posts: 21,400
Yes
Que89YJ is offline  
post #11 of 26 Old 11-06-2013, 05:45 PM
Que89YJ
Web Wheeler
1989 YJ Wrangler 
 
Join Date: Apr 2008
Location: Detroit
Posts: 21,400
You have to disconnect it from the firewall
Que89YJ is offline  
post #12 of 26 Old 11-06-2013, 05:56 PM Thread Starter
boatsandhose
Registered User
1990 YJ Wrangler 
 
Join Date: Jan 2013
Location: North Logan
Posts: 136
The bulkhead is disconnected from the firewall.

Sent from my Galaxy Nexus

90 YJ locked f/r 37s d30 F8.8
boatsandhose is offline  
post #13 of 26 Old 11-06-2013, 07:11 PM
Que89YJ
Web Wheeler
1989 YJ Wrangler 
 
Join Date: Apr 2008
Location: Detroit
Posts: 21,400
Then it should pull out of the back of the detent is being pushed back when you are pulling on it.
Que89YJ is offline  
post #14 of 26 Old 11-10-2013, 09:41 AM Thread Starter
boatsandhose
Registered User
1990 YJ Wrangler 
 
Join Date: Jan 2013
Location: North Logan
Posts: 136
Anybody know how to remove the harness from the ECU? I've removed the glovebox and the two mounting screws for the ECU.

90 YJ locked f/r 37s d30 F8.8
boatsandhose is offline  
post #15 of 26 Old 11-11-2013, 05:44 PM Thread Starter
boatsandhose
Registered User
1990 YJ Wrangler 
 
Join Date: Jan 2013
Location: North Logan
Posts: 136
Okay got the 3 burnt wires rewired, turned the key and it fired right up. It doesn't turn off when I turn the key and the blower motor runs whenever the negative cable is connected. After it ran for maybe 15 seconds I disconnected the negative cable and it won't start anymore. There are a couple of wires that got burnt that are underneath the dash that I need to replace and am having a hard time tracing them home. My FSM isn't telling me much. Near the mess underneath the battery tray there is a red wire with a white tracer that goes into a fusible link and comes out green on the other side. I can't figure out where it is supposed to go to as it is all melted away. Anyone have any idea?

90 YJ locked f/r 37s d30 F8.8
boatsandhose is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.



Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may 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 On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome