Pot Hole and Blown Fuel Pump Fuse - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Wrangler Forums > YJ Wrangler Technical Forum > Pot Hole and Blown Fuel Pump Fuse

Introducing MONSTALINER™ UV Permanent DIY Roll On Bed LineJeep speedometer gears at rockridge4wdTeraFlex Now at Rockridge 4WD! BEST DEALS around!

Reply
Unread 03-26-2013, 10:31 PM   #1
fishing2
Registered User
1992 YJ Wrangler 
 
Join Date: Mar 2013
Location: armstrong, bc
Posts: 8
Pot Hole and Blown Fuel Pump Fuse

.. Can anyone tell me why, when i pull out the Auto Shutdown Relay my Fuel Pump Fuse does not blow? I can hear the fuel pump prime , but does not start of course because the Auto Shutdown Relay is out. But as soon as i put Relay back in (new one) and try to start it, the Fuel Pump Fuse blows.

92/4.0 Litre


Last edited by fishing2; 03-27-2013 at 08:38 AM.. Reason: year and engine size
fishing2 is offline   Reply With Quote Quick reply to this message
Unread 03-26-2013, 11:39 PM   #2
Luuca
Professional Novice
 
Luuca's Avatar
2005 LJ Wrangler 
 
Join Date: Apr 2012
Location: Corona, CA
Posts: 2,681
Quote:
Originally Posted by fishing2
.. Can anyone tell me why, when i pull out the Auto Shutdown Relay my Fuel Pump Fuse does not blow? I can hear the fuel pump prime , but does not start of course because the Auto Shutdown Relay is out. But as soon as i put Relay back in (new one) and try to start it, the Fuel Pump Fuse blows.
I would leave the Auto Shut relay on, pull the fuel pump relay, and jump the fuel relay with a wire to see if you can get it to pump with the auto shut relay in. If it does, try the horn relay where your fuel relay is. You may have a bad relay.
__________________
91 YJ "Alice" 2.5L AX5 D30/35 -Busted Knuckles Yellow Jeep Club #91
05 LJ Rubicon "Ghost" 4" RE Lift 1" BL 33s

TJ FOR SALE
Luuca is offline   Reply With Quote Quick reply to this message
Unread 03-27-2013, 08:40 AM   #3
fishing2
Registered User
1992 YJ Wrangler 
 
Join Date: Mar 2013
Location: armstrong, bc
Posts: 8
Both relays are good. I put new ones in just in case! :-)
fishing2 is offline   Reply With Quote Quick reply to this message
Unread 03-27-2013, 08:51 AM   #4
Que89YJ
Web Wheeler
1989 YJ Wrangler 
 
Join Date: Apr 2008
Location: Detroit, Michigan
Posts: 15,608
That fuse supplies power to more then just the fuel pump. The ASD relay piggybacks it's coil feed off the fuel pump output feed to several other feeds. Your coil, injectors, heated O2 sensors and the alternator feed all get power though it. I would start by disconnecting the connectors to all of them and one by one connecting them until the fuse blows.
Que89YJ is offline   Reply With Quote Quick reply to this message
Unread 03-27-2013, 10:10 AM   #5
Luuca
Professional Novice
 
Luuca's Avatar
2005 LJ Wrangler 
 
Join Date: Apr 2012
Location: Corona, CA
Posts: 2,681
You won't find better diagnostic help than Que.
__________________
91 YJ "Alice" 2.5L AX5 D30/35 -Busted Knuckles Yellow Jeep Club #91
05 LJ Rubicon "Ghost" 4" RE Lift 1" BL 33s

TJ FOR SALE
Luuca is offline   Reply With Quote Quick reply to this message
Unread 03-29-2013, 11:25 PM   #6
fishing2
Registered User
1992 YJ Wrangler 
 
Join Date: Mar 2013
Location: armstrong, bc
Posts: 8
Thanks for the help. I found the problem to be a wire rubbing on the exhaust pipe. .... With this Auto Shut Down Relay wired to every god damn thing in the truck this was a ***** to find. Damn glad it didn`t fry the commuter.

The Princesses Chariot is now back on the road , the suns shining , the Jeep is dirty and she is smiling ! .... Now if she can only keep up with my /74 Land Crusier i would be smiling!
fishing2 is offline   Reply With Quote Quick reply to this message
Unread 03-30-2013, 12:14 AM   #7
Que89YJ
Web Wheeler
1989 YJ Wrangler 
 
Join Date: Apr 2008
Location: Detroit, Michigan
Posts: 15,608
Where was it running on the exhaust?
Que89YJ is offline   Reply With Quote Quick reply to this message
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.
Note: All free e-mails have been banned due to mis-use. (Yahoo, Gmail, Hotmail, etc.)
Don't have a non-free e-mail address? Click here for a solution: Manual Account Creation
Email Address:

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.


Thread Tools






Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.