Go Back   Jaguar Forums - Jaguar Enthusiasts Forum > Jaguar Models ( Modern ) > XJ ( X308 ) XJ8 / XJR
Sign in using an external account
Register Forgot Password?
Search

XJ ( X308 ) XJ8 / XJR 1997 - 2003

Welcome to Jaguar Forums!
Welcome to JaguarForums.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Jaguar Forums community today!


Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 04-08-2008, 07:34 PM
 
Join Date: Apr 2008
Posts: 23
Thanks: 0
Thanked 0 Times in 0 Posts
Default 98 XJ8 Fuel Pump Question

Hey guys, New to the forum and Jag world. Just got my 98 xj8 Jag with 57k miles. Now at 62K it would not start. I changed the battery for fear of voltage (stupid me). A friend told me to check the schrader (sp) valve and no fuel was spitting out. He told me it was probaly a faulty fuel pump. Anything else I should check? Also I found the fuel pump in the trunk does not look that bad but I am not sure if I am not seeing the big picture. Any help would be greatly appreciated. Any one know where to go from a forum sponsor for this?
Thanks
Reply With Quote
  #2  
Old 04-08-2008, 07:40 PM
Photobucket
 
Join Date: Jan 2008
Location: 33498
Posts: 2,961
Thanks: 0
Thanked 36 Times in 28 Posts
Send a message via AIM to FactoryJaguarTech
Default RE: 98 XJ8 Fuel Pump Question

I would check the relay first. Early Js and Ks had terrible relays. It is in the trunk fuse box... Picture a T on its side. Where the long part would meet the short part, that is the relay....lol. Sorry I can't put it better. Top of the long part where it joins the short part?
Anyway, swap that with another one temporarily. See if car starts then. Does it crank well? Does it drag when it cranks? Sound choked up at all?
Let us know.
__________________
If it ain't broke, don't fix it!!!
Reply With Quote
  #3  
Old 04-08-2008, 07:44 PM
 
Join Date: Apr 2008
Posts: 23
Thanks: 0
Thanked 0 Times in 0 Posts
Default RE: 98 XJ8 Fuel Pump Question

The car wants to start but it just does not kick over. No choking to my knowledgeIt just cranks but does not go over. My wife drove it on Saturday and then on Sunday dead. I checked the fuses in the trunk and they all seemed ok. How would I check the relays? Do i need to buy some or can i unplug one?
Reply With Quote
  #4  
Old 04-08-2008, 08:03 PM
Photobucket
 
Join Date: Jan 2008
Location: 33498
Posts: 2,961
Thanks: 0
Thanked 36 Times in 28 Posts
Send a message via AIM to FactoryJaguarTech
Default RE: 98 XJ8 Fuel Pump Question

Just swap with one next to it. Sounds though lime it is flooded. There was a post on that. Let me findit.

Here http://www.jaguarforums.com/m_36376/tm.htm
__________________
If it ain't broke, don't fix it!!!
Reply With Quote
  #5  
Old 04-08-2008, 08:17 PM
 
Join Date: Apr 2008
Posts: 23
Thanks: 0
Thanked 0 Times in 0 Posts
Default RE: 98 XJ8 Fuel Pump Question

Just went outside and checked the relays in the trunk. Looks like one has been replaced.
{
{{{{

The relays looked like this above and I swapped out the first two in the second row. The car did not start. It is still wanting to crank but nothing.

I really do appreciate your help. My buddy called his mechanic and he is the one that told us to check the fuel pump out. I really dont want to replace if it is something simple. I thought I would ask here. thanks
Reply With Quote
  #6  
Old 04-08-2008, 08:21 PM
Photobucket
 
Join Date: Jan 2008
Location: 33498
Posts: 2,961
Thanks: 0
Thanked 36 Times in 28 Posts
Send a message via AIM to FactoryJaguarTech
Default RE: 98 XJ8 Fuel Pump Question

Did you read the thread for which i posted link above? It sounds like you may have same problem. Try that first. If not, then I would look at the fuel pump. They do go bad and kind of a pain to replace. Gotta pull the tank to do it.
__________________
If it ain't broke, don't fix it!!!
Reply With Quote
  #7  
Old 04-08-2008, 08:24 PM
 
Join Date: Apr 2008
Posts: 23
Thanks: 0
Thanked 0 Times in 0 Posts
Default RE: 98 XJ8 Fuel Pump Question

I just read your thread posting. The one thing is when we checked the schrader valve there was no pressure on it. What do I do from that point. I may have misread the thread posting but I thought he had pressure on that valve. Where is my next step from there?

I hope not to seem to ingnorant, I really do appreciate the help. Im a science guy but no auto science so all your help is very appreciated
Reply With Quote
  #8  
Old 04-08-2008, 08:30 PM
Photobucket
 
Join Date: Jan 2008
Location: 33498
Posts: 2,961
Thanks: 0
Thanked 36 Times in 28 Posts
Send a message via AIM to FactoryJaguarTech
Default RE: 98 XJ8 Fuel Pump Question

Sorry I missed the part where you said no pressure on the valve. You really need to do fuel pressure test. I have seen the schraders stick so even when depressed, no fuel comes out.
From what you describe though, likely your friend is right and you need pump.
__________________
If it ain't broke, don't fix it!!!
Reply With Quote
  #9  
Old 04-08-2008, 08:35 PM
 
Join Date: Apr 2008
Posts: 23
Thanks: 0
Thanked 0 Times in 0 Posts
Default RE: 98 XJ8 Fuel Pump Question

The no pressure on that valve is what worried me. Is dropping the tank that complicated. If I can do it myself I will. My friends buddy said he would charge me three hours of labor for it but I like to get my hands dirty but I also know my limitations.

His mechanic did say to go and but the part but I do not want to tow it to him if I can do this with a friend. Any good places to get the fuel pump at? I am all about supporting the forums. What part of southern florida im near savannah ga (Bluffton SC).

Thanks Bud glad this forum has people whom want to help each other.
Reply With Quote
  #10  
Old 04-08-2008, 08:39 PM
Photobucket
 
Join Date: Jan 2008
Location: 33498
Posts: 2,961
Thanks: 0
Thanked 36 Times in 28 Posts
Send a message via AIM to FactoryJaguarTech
Default RE: 98 XJ8 Fuel Pump Question

The tank is in the trunk behind the carpet. Is not hard to get out, just hard to get the lines off from underneath, above the diff. If he only going to charge you 3 hours, I would say have him do it. Hard without a lift. Plus, the edges of tank are like razor blades. Easy to slice into the harness without you knowing it.
__________________
If it ain't broke, don't fix it!!!
Reply With Quote
  #11  
Old 04-08-2008, 08:44 PM
 
Join Date: Apr 2008
Posts: 23
Thanks: 0
Thanked 0 Times in 0 Posts
Default RE: 98 XJ8 Fuel Pump Question

any good place to buy the pump at? i found the gas tank through the back panel like you said. The jag amazes me with how easy some of the things are to get to. Thanks Bud
Reply With Quote
  #12  
Old 04-08-2008, 08:47 PM
Photobucket
 
Join Date: Jan 2008
Location: 33498
Posts: 2,961
Thanks: 0
Thanked 36 Times in 28 Posts
Send a message via AIM to FactoryJaguarTech
Default RE: 98 XJ8 Fuel Pump Question

lol....finding the tank was easy.....the pump is on top....not so easy.
__________________
If it ain't broke, don't fix it!!!
Reply With Quote
  #13  
Old 04-08-2008, 08:52 PM
 
Join Date: Apr 2008
Posts: 23
Thanks: 0
Thanked 0 Times in 0 Posts
Default RE: 98 XJ8 Fuel Pump Question

LOL yea it was actually not easy for us. Removed the seats first lol. Then we traced it back to the trunk. Very interesting.

Now it is time to go find the fuel pump online. I will let you know how it all works out. Beleive me I will be asking if I have questions.

Thanks again
Reply With Quote
  #14  
Old 04-08-2008, 08:55 PM
Photobucket
 
Join Date: Jan 2008
Location: 33498
Posts: 2,961
Thanks: 0
Thanked 36 Times in 28 Posts
Send a message via AIM to FactoryJaguarTech
Default RE: 98 XJ8 Fuel Pump Question

Jag Genius or ken@britishparts.com??
__________________
If it ain't broke, don't fix it!!!
Reply With Quote
Old 04-08-2008, 08:55 PM
 
 
 
Reply



Tags
2008, 98, fuel, fuse, jag, jaguar, labor, location, power, pump, relay, removal, replace, xj8, xjr



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not 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 On
Pingbacks are On
Refbacks are On


Advertising

Featured Sponsors
Vendor Directory
Our Sponsors
All times are GMT -5. The time now is 12:58 AM.

Copyright © 2010 Internet Brands, Inc. All rights reserved.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014 vBulletin Solutions, Inc. All rights reserved.
JAGUAR and its logo are the registered trademarks of Jaguar Cars Limited. Jaguar Cars Limited is not affiliated with JaguarForums.com.