please help - JeepForum.com

 
LinkBack Thread Tools
post #1 of 15 Old 04-26-2013, 08:53 PM Thread Starter
jmet87yj
Registered User
1987 YJ Wrangler 
 
Join Date: Apr 2013
Location: fort smith
Posts: 24
please help

i drove my jeep this morning and ran fine went to start it this evening an it won't start checked fire timing etc..but noticed i could not hear the fuel pump kick on as i did this mornin can the fuel pump just quit like that..

jmet87yj is offline  
Sponsored Links
Advertisement
 
post #2 of 15 Old 04-26-2013, 09:08 PM
Joe Dillard
Electric Chair Operator
 
Joe Dillard's Avatar
1991 YJ Wrangler 
 
Join Date: May 2004
Location: Lexington Park
Posts: 13,208
Have you checked fuses?
Joe Dillard is offline  
post #3 of 15 Old 04-27-2013, 03:03 AM
JeepingJustin
Registered User
1990 YJ Wrangler 
 
Join Date: Mar 2013
Location: Sylvia
Posts: 104
Yea they can quit without notice. But check your fuse an check the fuel pump relay. If those are good then it's probably the pump. Hope it's not a full tank. They get heavy quick.
JeepingJustin is offline  
post #4 of 15 Old 04-27-2013, 08:12 AM
Que89YJ
Web Wheeler
1989 YJ Wrangler 
 
Join Date: Apr 2008
Location: Detroit
Posts: 21,932
Check your fault codes and post what you find:
http://www.jeepforum.com/forum/f12/h...codes-1257145/
Que89YJ is offline  
post #5 of 15 Old 04-27-2013, 09:24 PM Thread Starter
jmet87yj
Registered User
1987 YJ Wrangler 
 
Join Date: Apr 2013
Location: fort smith
Posts: 24
Well haven't had chance to check codes yet but fuses an relays are good weird thing is after i checked them it started fine an now its back to not starting so i guess ill be dropping the tank..good thing it only has 1/4 of a tank.. thanks for the help!!
jmet87yj is offline  
post #6 of 15 Old 04-28-2013, 07:08 AM
Que89YJ
Web Wheeler
1989 YJ Wrangler 
 
Join Date: Apr 2008
Location: Detroit
Posts: 21,932
You need to check the codes. There it's an important issue that relates to the codes. You might be making more work and not solving your issue if you don't check them first.
Que89YJ is offline  
post #7 of 15 Old 04-28-2013, 01:26 PM Thread Starter
jmet87yj
Registered User
1987 YJ Wrangler 
 
Join Date: Apr 2013
Location: fort smith
Posts: 24
Well went to check codes check engine light isn't on bulb blown so i put new one in an check engine light still ain't on any advice
jmet87yj is offline  
post #8 of 15 Old 04-28-2013, 01:49 PM
Que89YJ
Web Wheeler
1989 YJ Wrangler 
 
Join Date: Apr 2008
Location: Detroit
Posts: 21,932
that is exactly what I was looking for. There is a problem with the ecu. The input power caps blow and the ecu lite not coming on is the indicator. You have 2 choises. Either replace the input caps or buy a replacement ecu. You don't have an issue with your fuel pump. It its controlled by the ecu and the ecu is bad.
Que89YJ is offline  
post #9 of 15 Old 04-28-2013, 02:27 PM Thread Starter
jmet87yj
Registered User
1987 YJ Wrangler 
 
Join Date: Apr 2013
Location: fort smith
Posts: 24
Would that explain why it will start up just fine one time an then not start the next and also were can i find pics or diagram of end caps your talking about..an thanks alot for help im learning alot .
jmet87yj is offline  
post #10 of 15 Old 04-28-2013, 03:10 PM Thread Starter
jmet87yj
Registered User
1987 YJ Wrangler 
 
Join Date: Apr 2013
Location: fort smith
Posts: 24
And also were is the ecu located
jmet87yj is offline  
post #11 of 15 Old 04-28-2013, 04:02 PM
Que89YJ
Web Wheeler
1989 YJ Wrangler 
 
Join Date: Apr 2008
Location: Detroit
Posts: 21,932
I'm on my cell but I think you can find it by searching the forum for brain surgery. It is the engine controller on the drivers side of the engine compartment.
Que89YJ is offline  
post #12 of 15 Old 04-28-2013, 04:35 PM Thread Starter
jmet87yj
Registered User
1987 YJ Wrangler 
 
Join Date: Apr 2013
Location: fort smith
Posts: 24
The only thing i can find on driver side is were the fuse box comes through..is that what i need to replace or the computer.that is above the heater box.
jmet87yj is offline  
post #13 of 15 Old 04-28-2013, 05:11 PM
Que89YJ
Web Wheeler
1989 YJ Wrangler 
 
Join Date: Apr 2008
Location: Detroit
Posts: 21,932
http://www.jeepforum.com/forum/f12/c...rs-ecu-492597/

It looks like this:
Attached Thumbnails
DSCF0478.jpg  
Que89YJ is offline  
post #14 of 15 Old 04-30-2013, 11:49 AM
JeepingJustin
Registered User
1990 YJ Wrangler 
 
Join Date: Mar 2013
Location: Sylvia
Posts: 104
Yeah if it was just a fuel pump issue it would never start back up. Ecu is probably dead.
JeepingJustin is offline  
post #15 of 15 Old 04-30-2013, 08:09 PM Thread Starter
jmet87yj
Registered User
1987 YJ Wrangler 
 
Join Date: Apr 2013
Location: fort smith
Posts: 24
Well i got computer out an apart can't seem to find the caps. on it. Does any body have pics of of them out of a 87 2.5.thanks
jmet87yj 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