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Jaguar XJ-Series Fuel System Questions

47 messages,  Last post on Feb 26, 2013 at 11:49 AM

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

Messages Page 5 of 5

#38 of 47 Re: 01 Jaguar XJ8 Code 1247? [Mr_Shiftright] by denham

Jan 23, 2012 (6:03 pm)

Replying to: MrShift@Edmunds (Jan 23, 2012 11:49 am)
Not intermittent anymore, can get no fuel pressure, have voltage at the tank plug and now pulling the fuel tank to install new pump. You were right about the second bank, and If you have not changed that sensor you do not want to as it was most difficult.
Dennis

#39 of 47 Re: 01 Jaguar XJ8 Code 1247? [denham] by MrShift@Edmunds HOST

Jan 23, 2012 (6:29 pm)

Replying to: denham (Jan 23, 2012 6:03 pm)
arghhh!

#40 of 47 XJ40 1990 Fuel Sys. by choquet

Jan 24, 2012 (11:09 am)

I have one too and have learned not to believe everyone on line so I'll tell you what I know for sure. There is a temp sensor next to the gauge temp sensor, it has an oval 2 prong socket. If this sensor is bad it will make engine run lean, too rich and incorrect timing. If this condition has persisted your plugs will be carbon fouled. Clean-up plugs re=gap (make sure they are right ones), then jump the two terminals on sensor plug and see if this helps performance. If it does replace the sensor if it doesn't you haven't wasted any money. Now will you tell me where the fuel filter is located, I don't feel like looking all over for it. TX Choquet

#41 of 47 Re: 1998 XJ VANDEN PLAIS [ksj] by choquet

Jan 24, 2012 (12:28 pm)

Replying to: ksj (Jan 22, 2007 4:49 am)
If you don't want it let me know. You NEED to find a good honest mechanic or someone is really dogging your car, anyway the repairs are priced too high. Jaguar made quality cars and if maintained properly will go a long way. Didn't see the "serviced timing chain/belt" which gets done 60K mi., if it fail severe engine damage is almost certain. Get a re-manufactured crank installed if its broken, don't be afraid of used jag parts. Keep it and fire your mech.

#42 of 47 Re: 01 Jaguar XJ8 Code 1247? [Mr_Shiftright] by denham

Jan 27, 2012 (9:37 am)

Replying to: MrShift@Edmunds (Jan 23, 2012 11:49 am)
Well Sir, Replaced the fuel pump. Found wire inside tank burned pump seemed ok. Replaced pump with new one ( AirTex brand) and now getting above 60psi before it was 35-40 with old pump, and now a leak at the tank fitting going in. Should I put old pump back in when I try and repair leak? Pulled tank with lines attached and not sure if these fitting have a "o ring" or what and if just maybe this high pressure is part to blame for this leak ? .
YOUR ADVICE!

#43 of 47 Re: 01 Jaguar XJ8 Code 1247? [denham] by MrShift@Edmunds HOST

Jan 28, 2012 (10:50 am)

Replying to: denham (Jan 27, 2012 9:37 am)
Too much pressure, yes. Should be 42 psi. I don't know this car at all, so I'm in the dark here. There IS a sealing ring for the evaporative loss flange at the tank.

#44 of 47 Need a XJ40 repair service manual download free by choquet

Feb 02, 2012 (2:05 pm)

I need a free download manual, for a 1990 Sovereign. Scope of service work requires exact info and pics, tired of slow dancing. I know there's a Haynes or Chilton out there, I got it and deleted it cause it was a lot on my computer.

#45 of 47 Re: Need a XJ40 repair service manual download free [choquet] by MrShift@Edmunds HOST

Feb 03, 2012 (10:25 am)

Replying to: choquet (Feb 02, 2012 2:05 pm)
you can buy one used for $8 bucks. Surely your baby is worth that?
 
used Haynes Manual for Jaguar on Amazon

#46 of 47 Re: Fuel Filter XJ8 [redrocketman] by gene37

Sep 09, 2012 (1:33 pm)

Replying to: redrocketman (Dec 27, 2006 4:48 am)
There is no question but that the early 90's Jags had lots of fuel supply, and consequent starting problems. I have been there (with a 92, XJ6). But, there is one possible fix that has worked for me a couple of times, when I thought I had a fuel starvation problem, and the engine would not hit a lick. Try re-setting the Computer. Disconnect the + battery side for 10 min. or so. Turn on the switch, then reconnect. Leave the switch on and disconnect the battery again. Turn off the switch. Re-connect and see it she won't crank up.
 
You may be getting fuel to the fuel manifold, but not past the injectors, if the computer is off-base (or shot).
 
Gene37

#47 of 47 Fuel Leak by neal36

Feb 26, 2013 (11:49 am)

I have an 84 XJS HE that has a fuel leak on the pressure side just after coming out of the pump on the wheel well side. A rubber hose is situated between the differential saddle and the frame. Does any one know how to replace this hose without having to remove the saddle?

Messages Page 5 of 5

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