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Jaguar XJ-Series Fuel System Questions

19 messages,  Last post on Aug 08, 2008 at 12:05 PM

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What is this discussion about? Jaguar XJ-Series, Fuel System, Sedan

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#13 of 19 Re: 1999 JX8 fuel filter replacement [nancyisenberg] by jag21 May 17, 2007 (1:18 pm)
Replying to: nancyisenberg (Nov 27, 2006 8:12 am) Can someone please advise the location of my fuel filter on my 1999Jaguar xj8 -- thank you --stu - Replies to this message: myusername2 (May 15, 2008 3:22 pm) Mr_Shiftright (May 15, 2008 7:13 pm)
#14 of 19 94 xj12 extended cranking condition by myusername2 May 15, 2008 (3:21 pm)
I have been trying to resolve a long cranking condition on a 94 xj12 I have had to replace the fuel filter about 1500 miles ago because it was almost completely restricted-vehicle would not rev up beyond 2000 rpm's That worked great for about a month but it has started taking 15-20 seconds of cranking before it slowly comes to life it runs fine out on the road no miss or hesitation I replaced the fuel pressure regulator after reading about a tsb pertaining to what sounded like this exact scenario did not change anything I did insert a fuel pressure gauge in place of the fuel filter and watched 85 psi of fuel pressure but noticed it falls off as soon as the pump quits running I went ahead and replaced the fuel filter again as a precaution I then replaced the primary fuel pump with an oem bosch pump not the housing just the pump still not getting anywhere I am starting to go bald on the right side from pulling my hair out is there anyone who has walked this road before or seen this scenario play out? Thanks! ">
#15 of 19 Re: 1999 JX8 fuel filter replacement [jag21] by myusername2 May 15, 2008 (3:22 pm)
Replying to: jag21 (May 17, 2007 1:18 pm) Coupe convertible or sedan?
#16 of 19 talking to myself apparently by myusername2 May 15, 2008 (3:31 pm)
it has just come to my attention that I just responded to a post that has been here for almost a year...somewhat of a ghost town in here Replies to this message: pat (May 15, 2008 4:12 pm)
#17 of 19 Re: talking to myself apparently [myusername2] by pat HOST May 15, 2008 (4:12 pm)
Replying to: myusername2 (May 15, 2008 3:31 pm) Yeah, you're right, there haven't been a lot of posts here lately. But oftentimes a new post (or three ) will attract other posters who are waiting for something new to read.   However, if no one shows up soon, try posting in our Answers section over there on the right sidebar.   Good luck - hope we can help one way or the other!
#18 of 19 Re: 1999 JX8 fuel filter replacement [jag21] by Mr_Shiftright HOST May 15, 2008 (7:13 pm)
Replying to: jag21 (May 17, 2007 1:18 pm) The Fuel Filter is located along the frame rail, next to the fuel tank, and near the driver side rear wheel.
#19 of 19 Re: Update on my 1998 XJ problem [pat] by poetlorryit Aug 08, 2008 (12:05 pm)
Replying to: pat (Jan 25, 2007 5:46 am) Just been reading Sep 08 issue of Jaguar World and it has an article about changing the timing chain tensioners. Any 4.0 AJ-V8 built before 21st Oct '98 will have a plastic bodied TCT which fails and causes catastrophic engine damage the valves and pistons unite in unholy matrimony. If your engine number is 9810210599 or less then it will have the bad tensioner if it has the original factory one still fitted. You need the newer 4.2 spec ones fitted real soon, it says if you can hear any chain rattle from the front end switch it off and tow it to nearest garage before it die$$$. Added to that this engine has a $3k throttle body mod that needs to have been done or it stalls a lot and those cylinder liners are nickasil if manufactured before sep '99 which can fail causing low compression.

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