Starting issues!!! - JeepForum.com
Reply
 
LinkBack Thread Tools
post #1 of 17 Old 08-02-2011, 10:27 AM Thread Starter
TeeJay00
Registered User
2000 TJ Wrangler 
 
Join Date: Nov 2009
Location: Kuwait
Posts: 1,547
Starting issues!!!

So my recently bought '04 4.7L WJ started to give me some trouble starting up in the past couple of days.

The jeep was in the dealership two months ago before I bought it for a complete check up and tune up by the previous owner. The starter works fine but the engine just keeps cranking and doesn't start untill I turn off the ignition and try it a second time then it starts normally with no problems at all... It appears to be a fuel pump failure symptoms!!!

What do you guys think???

TeeJay00 is offline  
Sponsored Links
Advertisement
 
post #2 of 17 Old 08-02-2011, 10:31 AM
WiCkeDuDe
Registered User
2002 WJ 
 
Join Date: Dec 2007
Location: Utah
Posts: 3,166
Classic fuel pump issue. Try the fuel pump ring first before replacing the whole pump if the pump doesnt have too many miles on it.
WiCkeDuDe is offline  
post #3 of 17 Old 08-02-2011, 10:35 AM Thread Starter
TeeJay00
Registered User
2000 TJ Wrangler 
 
Join Date: Nov 2009
Location: Kuwait
Posts: 1,547
Quote:
Originally Posted by WiCkeDuDe View Post
Classic fuel pump issue. Try the fuel pump ring first before replacing the whole pump if the pump doesnt have too many miles on it.
What's the fuel pump ring???

Oh and I just remembered... One of the things I replaced when I first bought it was the fuel filler cap!!! It had a TJ filler cap which did not seal up at all !!! Now I'm thinking dirt, sand or who knows what might have gotten into the tank
TeeJay00 is offline  
post #4 of 17 Old 08-02-2011, 08:09 PM
seankeenan
Registered User
2004 TJ Wrangler 
 
Join Date: Nov 2010
Location: Johns Creek
Posts: 341
i have the same problem. can someone help me locate the fuel filter. is it under the rear bumper? could this problem possibly be the o rings?... which i also know nothing about

my shop told me it is either a bad pump, bad filter, or bad o rings

Dang, I finally have a TJ.
seankeenan is offline  
post #5 of 17 Old 08-03-2011, 06:27 AM Thread Starter
TeeJay00
Registered User
2000 TJ Wrangler 
 
Join Date: Nov 2009
Location: Kuwait
Posts: 1,547
What o rings???
TeeJay00 is offline  
post #6 of 17 Old 08-03-2011, 12:40 PM
seankeenan
Registered User
2004 TJ Wrangler 
 
Join Date: Nov 2010
Location: Johns Creek
Posts: 341
Quote:
Originally Posted by TeeJay00 View Post
What o rings???
I honestly have no idea. my mech told me it could be the o rings and they sell a kit at part stores.

Dang, I finally have a TJ.
seankeenan is offline  
post #7 of 17 Old 08-03-2011, 01:57 PM
ChiliPalmer
This is Ames Mister...
 
ChiliPalmer's Avatar
1992 XJ Cherokee 
 
Join Date: Dec 2006
Location: Coeur d'Alene
Posts: 3,320
What's happening is you're losing pressure when it sits, if it's similar to the TJ then the fuel is simply flowing back into the tank so you have to crank on it to build pressure and refill the lines. On the TJ it's the anti drain back valve that goes bad so fuel pump replacement is needed but what I've read about the WJ's is that the o-ring goes bad and replacing it usually fixes the problem.

Here's a pic from the following thread that may help. It's the o-ring located inside the spring.

http://www.jeepforum.com/forum/f310/...ranks-1208967/
Attached Thumbnails
093.jpg  


COTM - October 2012!

If you want to help the sport of offroading visit the EnviroBeat Forum!


Quote:
Originally Posted by Sparrows View Post
Oh man Chili. I feel like a recovering addict that just had a bag of blow, a bottle of Jameson, and a sack dropped in his lap. You screwed me man!
ChiliPalmer is offline  
post #8 of 17 Old 08-04-2011, 10:04 AM Thread Starter
TeeJay00
Registered User
2000 TJ Wrangler 
 
Join Date: Nov 2009
Location: Kuwait
Posts: 1,547
Quote:
Originally Posted by ChiliPalmer View Post
What's happening is you're losing pressure when it sits, if it's similar to the TJ then the fuel is simply flowing back into the tank so you have to crank on it to build pressure and refill the lines. On the TJ it's the anti drain back valve that goes bad so fuel pump replacement is needed but what I've read about the WJ's is that the o-ring goes bad and replacing it usually fixes the problem.

Here's a pic from the following thread that may help. It's the o-ring located inside the spring.

http://www.jeepforum.com/forum/f310/...ranks-1208967/
Ok I've tried trning the key on and off to build the pressure again but it's the same thing
TeeJay00 is offline  
post #9 of 17 Old 08-04-2011, 10:08 AM Thread Starter
TeeJay00
Registered User
2000 TJ Wrangler 
 
Join Date: Nov 2009
Location: Kuwait
Posts: 1,547
I have been reading abot this issue which seems to be a common one in WJ's... So here is what I'm gonna do. I will replace the o ring and the fuel filter first and see where that takes me ! What do you guys think??
TeeJay00 is offline  
post #10 of 17 Old 08-04-2011, 07:56 PM
ChiliPalmer
This is Ames Mister...
 
ChiliPalmer's Avatar
1992 XJ Cherokee 
 
Join Date: Dec 2006
Location: Coeur d'Alene
Posts: 3,320
That's where I would start.


COTM - October 2012!

If you want to help the sport of offroading visit the EnviroBeat Forum!


Quote:
Originally Posted by Sparrows View Post
Oh man Chili. I feel like a recovering addict that just had a bag of blow, a bottle of Jameson, and a sack dropped in his lap. You screwed me man!
ChiliPalmer is offline  
post #11 of 17 Old 05-05-2012, 06:01 AM Thread Starter
TeeJay00
Registered User
2000 TJ Wrangler 
 
Join Date: Nov 2009
Location: Kuwait
Posts: 1,547
I'm sorry guys but I just have to bring this thread back from the grave

I still have the same long crank problem!!! I changed the O ring at first. Didn't work so i changed the whole fuel pump assembly and the fuel filter. Worked for one week and then it started to act up again

So now what??? I know it has been months since I had this problem. But I didn't have time to look into it. Now I really must fix it.

-2000 Jeep Wrangler TJ Sahara - 4" lift and 33's- Built Not Bought
-2003 Jeep Liberty KJ Limited - Stock
-2004 Jeep Grand Cherokee WG Limited - Stock
TeeJay00 is offline  
post #12 of 17 Old 05-05-2012, 06:12 AM
joze
Registered User
 
Join Date: Mar 2011
Posts: 295
Is the problem there all the time? Because mine does it too, but only when it's warmed up and sitting for about 30 minutes or more. In the morning it starts right up, the colder the better, and if i turn it off and start it again in like 5-10 minutes it also starts without problem.

My non-build thread| Black Jeep Society member
Quote:
Originally Posted by Ljohn221 View Post
You can't start a new civilization without jeeps
Quote:
Originally Posted by dukie564 View Post
Epic boobs saving threads since 1978
joze is offline  
post #13 of 17 Old 05-05-2012, 07:05 AM Thread Starter
TeeJay00
Registered User
2000 TJ Wrangler 
 
Join Date: Nov 2009
Location: Kuwait
Posts: 1,547
Quote:
Originally Posted by joze
Is the problem there all the time? Because mine does it too, but only when it's warmed up and sitting for about 30 minutes or more. In the morning it starts right up, the colder the better, and if i turn it off and start it again in like 5-10 minutes it also starts without problem.
The problem is there all the time. After I park it for 30min or more the fuel pressure in the lines seems to drop. Then I have to turn it on and off a couple of times until the fuel fills the lines for the engine to start normally.

-2000 Jeep Wrangler TJ Sahara - 4" lift and 33's- Built Not Bought
-2003 Jeep Liberty KJ Limited - Stock
-2004 Jeep Grand Cherokee WG Limited - Stock
TeeJay00 is offline  
post #14 of 17 Old 05-06-2012, 01:29 PM Thread Starter
TeeJay00
Registered User
2000 TJ Wrangler 
 
Join Date: Nov 2009
Location: Kuwait
Posts: 1,547
Within the process of isolating the cause. Is there a fuel regulator other than the external filter in a 4.7L? Because I already replaced that when I changed the fuel filter.

-2000 Jeep Wrangler TJ Sahara - 4" lift and 33's- Built Not Bought
-2003 Jeep Liberty KJ Limited - Stock
-2004 Jeep Grand Cherokee WG Limited - Stock
TeeJay00 is offline  
post #15 of 17 Old 05-06-2012, 02:05 PM
metalhead
Registered User
2011 WK 
 
Join Date: Nov 2008
Location: southampton, Pa
Posts: 1,229
First off you need to check the residual fuel pressure with a fuel pressure gauge. If the system does not hold pressure with the engine off then there is a problem with a leaking injector fuel pump connectors, hoses or pressure regulator. This will cause hard starting issues.
metalhead 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



Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
Jeep Starting Issues mrddye WJ Grand Cherokee Forum 0 12-15-2010 02:17 PM
Issues with starting Sublme437 WJ Grand Cherokee Forum 0 10-01-2010 08:06 PM
Starting issues... ct290 WJ Grand Cherokee Forum 2 09-14-2010 04:39 PM
02 Wj starting and electrical issues Scjeepwj02 WJ Grand Cherokee Forum 4 08-25-2010 10:24 AM
still starting issues, tried everything, what did i miss?! paroxysym WJ Grand Cherokee Forum 1 03-24-2010 04:44 PM

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