1990 Wrangler - fuel pump & sending unit - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > YJ Jeep Wrangler Forum > YJ Tech Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 10-05-2006, 12:58 AM   #1
Newb
 
Join Date: Jun 2006
Posts: 5
1990 Wrangler - fuel pump & sending unit

After letting my 1990 Jeep Wrangler 2.5L sit up for a few years, I decided to charge the battery and fire it up. The starter was turning over, but I couldn't get it to crank unless someone was spraying a constant stream of starting fluid while I cranked away.

I traced the problem back to the rusty fuel pump. The soured gas had an awful smell. The rubber hoses on the fuel pump unit was cracked and mushy feeling. To my knowledge, I cannot take the easy way out and interchange the parts (fuel pump, sending unit, strainer, etc.) because the pump itself is rusty as you can see in the photos. I have the 15 gallon gas tank and the eletric pump. Strange how some are carbureted and some are electric in the same year.

Now for the fun part. I call a few parts stores and they cannot find one anywhere. Next, I make the dreaded call to the Jeep dealership and they quickly inform me that the part is no longer being made and I am out of luck, however, I eventually found one. I am forced to order it tomorrow, and it will cost $340.

Here are some pictures of my rusty 1990 fuel pump compared to a 1991. I bought the 1991 to see if I could get it to fit, but had no luck at doing so.

Any ideas would be appreciated. Enjoy the photos!

http://img.photobucket.com/albums/v5.../fuelpump1.jpg
http://img.photobucket.com/albums/v5.../fuelpump2.jpg
http://img.photobucket.com/albums/v5.../fuelpump3.jpg

93Gr is offline   Quote Quick Reply
Old 10-05-2006, 08:47 AM   #2
Hacks off Parts while Lit
 
whitebuffalo's Avatar
 
Join Date: May 2005
Location: The Sandhills of South Texas
Posts: 2,290
they have it for $94.50 here: http://collinsbros.stores.yahoo.net/fuelpumps.html

my understanding is that in 90, the 6 cylinders were carbed, and the 4 bangers were TBI

__________________
'90 YJ, ford 8.8, SOA, lincoln front, aussie rear, 4.88s, swampers.
whitebuffalo is offline   Quote Quick Reply
Old 10-05-2006, 01:38 PM   #3
Newb
 
Join Date: Jun 2006
Posts: 5
Thanks for the link.

I called them and this is only for the fuel pump itself and not the entire unit. I asked if they knew of anyone selling the units for 4-cylinders, and the reply was that there are not any being made aftermarket.
93Gr is offline   Quote Quick Reply
Old 10-05-2006, 04:17 PM   #4
Newb
 
Join Date: Jun 2006
Posts: 5
I just called to order the part. $345.

They called 30 minutes later and said that they could not find one after exhausting their resources.

I'll check to see if exxon makes one since it's a gas guzzler!
93Gr is offline   Quote Quick Reply
Old 10-05-2006, 04:58 PM   #5
Hacks off Parts while Lit
 
whitebuffalo's Avatar
 
Join Date: May 2005
Location: The Sandhills of South Texas
Posts: 2,290
doh! that sucks. Can you improvise using a new pump in the old setup? using your own hose etc? what else do you HAVE to have besides the pump to get back on the road?
__________________
'90 YJ, ford 8.8, SOA, lincoln front, aussie rear, 4.88s, swampers.
whitebuffalo is offline   Quote Quick Reply
Old 10-05-2006, 07:50 PM   #6
Newb
 
Join Date: Jun 2006
Posts: 5
That's all she needs. The fuel pump, sending unit, strainer, etc. The whole kit - exactly what is in the 3 photos in the previous post.

I'm not sure what will best interchange with it or if I can rig something. I'll ask around and see what I can find out. At least they still have some fuel filters on hand! ha
93Gr is offline   Quote Quick Reply
Old 10-05-2006, 08:59 PM   #7
Pushy, Loudmouthed, and Ballsy
 
Dare2BSquare's Avatar
 
Join Date: Jul 2006
Location: Driving Around Arkansas In My Black XJ
Posts: 6,177
Have you tried "recycled" parts. i.e. salvage yards?
__________________
99 XJ Sport
4.0l
AW4
NP231
d30/C8.25
3" Skyjacker lift
31 x 10.50 General Grabbers


http://i66.photobucket.com/albums/h2...are/TMLogo.gif Are all fishermen liars, or do only liars fish?
Dare2BSquare is offline   Quote Quick Reply
Old 10-06-2006, 07:27 PM   #8
Jeeper
 
timmy43410's Avatar
 
Join Date: Sep 2006
Location: Northwest Ohio
Posts: 32
Send a message via Yahoo to timmy43410
Junkyards...God's gift to jeep lovers!!! What about a set up for a xj cherokee?
__________________
"Man who stands on toliet is high on pot" TIMMY!!!!
timmy43410 is offline   Quote Quick Reply
Old 10-10-2006, 10:13 PM   #9
Jeeper
 
Join Date: Sep 2006
Posts: 31
have you thought about swapping to a 1991 feul tank?? you already have the feul pump for it.
cadamson is offline   Quote Quick Reply
Old 10-11-2006, 10:50 PM   #10
Newb
 
Join Date: Jun 2006
Posts: 5
Quote:
Originally Posted by Dare2BSquare
Have you tried "recycled" parts. i.e. salvage yards?
After calling close to 20 salvage yards, I located one and received the part yesterday. $55.
I stopped by a local parts store and picked up a new strainer for $5.50.
The part looks to be in good condition. I'll let you guys know the results.

If it won't work, I'll have to check out that XJ rig or look at swapping the '91 tank.
Fixing that up sounds like a weekend of absolute fun.

I took the 1991 fuel pump back to the store.
93Gr is offline   Quote Quick Reply
Old 05-09-2009, 08:23 PM   #11
Newb
 
Join Date: May 2009
Location: Ontario, ca
Posts: 9
Photos are gone

Quote:
Originally Posted by 93Gr View Post
After letting my 1990 Jeep Wrangler 2.5L sit up for a few years, I decided to charge the battery and fire it up. The starter was turning over, but I couldn't get it to crank unless someone was spraying a constant stream of starting fluid while I cranked away.

I traced the problem back to the rusty fuel pump. The soured gas had an awful smell. The rubber hoses on the fuel pump unit was cracked and mushy feeling. To my knowledge, I cannot take the easy way out and interchange the parts (fuel pump, sending unit, strainer, etc.) because the pump itself is rusty as you can see in the photos. I have the 15 gallon gas tank and the eletric pump. Strange how some are carbureted and some are electric in the same year.

Now for the fun part. I call a few parts stores and they cannot find one anywhere. Next, I make the dreaded call to the Jeep dealership and they quickly inform me that the part is no longer being made and I am out of luck, however, I eventually found one. I am forced to order it tomorrow, and it will cost $340.

Here are some pictures of my rusty 1990 fuel pump compared to a 1991. I bought the 1991 to see if I could get it to fit, but had no luck at doing so.

Any ideas would be appreciated. Enjoy the photos!

http://img.photobucket.com/albums/v5.../fuelpump1.jpg
http://img.photobucket.com/albums/v5.../fuelpump2.jpg
http://img.photobucket.com/albums/v5.../fuelpump3.jpg
Hello

Thanks for the help, but the photos are gone. can you repost.
Thanks
Fastlaphoto is offline   Quote Quick Reply
Old 05-10-2009, 12:14 AM   #12
Hacks off Parts while Lit
 
whitebuffalo's Avatar
 
Join Date: May 2005
Location: The Sandhills of South Texas
Posts: 2,290
this thread is 2 and a half years old. what do you need pics of? i have my tank off right now and the pump out, since the asshat from ebay sent me ther wrong part and im still waiting for the right one....
__________________
'90 YJ, ford 8.8, SOA, lincoln front, aussie rear, 4.88s, swampers.
whitebuffalo is offline   Quote Quick Reply
Old 05-10-2009, 02:02 AM   #13
Newb
 
Join Date: May 2009
Location: Ontario, ca
Posts: 9
Smile

Quote:
Originally Posted by whitebuffalo View Post
this thread is 2 and a half years old. what do you need pics of? i have my tank off right now and the pump out, since the asshat from ebay sent me ther wrong part and im still waiting for the right one....
I like that the Asshat! I hope its ok to use it.
Sorry about the thread, I didn't realize that.
Any way. I am trying to figure out this piece of garbage of design in this Jeep.
I went threw the wire harness pulled all of the loom tubing off, checked to make sure no wires were broken or shorting Out. Took out the ECU it looked good along with the ECU plug. This thing turns over but it does not start. The fuel pump works when I bypass it at the relay. but it still doesn't start.
went threw all of the plugs underneath the dash to make sure all were clean and no wiring issues. I am going threw them again tomorrow.

Any ideas that can help me resolve this mess I would appreciate it.
Fastlaphoto is offline   Quote Quick Reply
Old 05-10-2009, 02:01 PM   #14
Hacks off Parts while Lit
 
whitebuffalo's Avatar
 
Join Date: May 2005
Location: The Sandhills of South Texas
Posts: 2,290
what year is it? is it throttle body injected? will it start on ether? have you replaced the fuel pump relays?
__________________
'90 YJ, ford 8.8, SOA, lincoln front, aussie rear, 4.88s, swampers.
whitebuffalo is offline   Quote Quick Reply
Old 05-10-2009, 03:45 PM   #15
Newb
 
Join Date: May 2009
Location: Ontario, ca
Posts: 9
Quote:
Originally Posted by whitebuffalo View Post
what year is it? is it throttle body injected? will it start on ether? have you replaced the fuel pump relays?
It is a 90. injected throttle body, I just got two new relays to try, I have to go to where the jeep is to put them in and see what happens.

if not the relays, what can you advise me to check. As in prior posts I have almost tore the whole thing appart with out any luck.
Fastlaphoto is offline   Quote Quick Reply
Old 05-11-2009, 09:47 AM   #16
Hacks off Parts while Lit
 
whitebuffalo's Avatar
 
Join Date: May 2005
Location: The Sandhills of South Texas
Posts: 2,290
you said it doesnt start even when you hotwire the fuel pump.

is your dash working?

will it start on ether?

do you have spark?

on mine, the prefilter/sock thing that goes on the pickup tune disintegrated and went into the pump, killing it. have you tried pulling the fuel lines, then hotwiring the pump to see if you're actually flowing fuel?

try to start it on ether first....that'll at least narrow it down to whether you're dealing with a fuel delivery problem or somehting else. if it wouldnt start even with the pump hot wired, i'd be concerned it might be something else.

__________________
'90 YJ, ford 8.8, SOA, lincoln front, aussie rear, 4.88s, swampers.
whitebuffalo is offline   Quote Quick Reply
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler Forum 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 email address for yourself.
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

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 Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Wrangler fuel pump not running on start captflyte YJ Tech Forum 2 05-09-2009 10:39 PM
fuel pump problem in jeep wrangler to chevy engine conversion guardian YJ Tech Forum 8 11-11-2008 03:44 PM
wtb sending unit and or fuel pump scooter18155 Classifieds Archive 4 01-03-2007 05:20 PM
Oil pump sending unit donald YJ Tech Forum 3 11-13-2006 07:23 PM



Download our Mobile App

» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 04:08 PM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC