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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 4 of 5

#27 of 47 1994 Jaguar XJ6 by rhemcomm

May 05, 2010 (12:37 pm)

Transmission Dash Light Comes on at times which makes the Transmission Shift Hard. I can sometimes Turn off ignition and then Restart Car and Dash Transmission Light goes off. Manual says take it to the Dealer. Any suggestions besides that?

#28 of 47 1990 XJ6 acceleration problem by barnstormer1

Jun 26, 2010 (9:37 am)

I have a 1990 XJ6 that will start right up and drive slowly, but when you push down the accelerator it starts slowing down. Parked with the engine running you can rev it up and it seems just fine. Start down the road and if it is flat you can gradually get up to 60mph , but as soon as you push down on the pedal it starts slowing down. The fuel filter has been replaced. There is a backfire through the intake if at speed you hold down the accelerator as the engine slows down.HELP!!!

#29 of 47 Engine Light On? by denham

Dec 24, 2011 (8:02 am)

2001 Jaguar XJ8 Engine Light came on and after car sets for a few day at times difficult to get started. Once started runs fine and restarts with no problem. Changed fuel filter, new spark plugs and air filter and this did not help. Car runs fine just this engine light and difficult getting started only at times? This car has 81,000milesw and often sets for weeks before driven.

#30 of 47 Re: 1990 XJ6 acceleration problem [barnstormer1] by Mr_Shiftright HOST

Dec 24, 2011 (8:34 am)

Replying to: barnstormer1 (Jun 26, 2010 9:37 am)
Sounds like a fuel delivery issue and a leanness condition, but from what, it's hard to say without pulling codes and further diagnosis. Also another wild guess, these cars have been known to stall or move off slowly when transmission fluid is very low.

#31 of 47 01 Jaguar XJ8 Code 1247? by denham

Jan 16, 2012 (5:38 pm)

Car will not start at times and has no fuel pressure, try later and may get fuel pressure and starts and runs fine. Get Code P1247 02 sensor control chip bank 2 and not sure this is my problem or if this sensor can now and then cut off all fuel? Before getting this code got code P1230 fuel relay that I changed and now this code P1247?
NEED ADVICE!
Dennis

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

Jan 16, 2012 (7:09 pm)

Replying to: denham (Jan 16, 2012 5:38 pm)
are you sure the number isn't 1647?

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

Jan 19, 2012 (12:05 pm)

Replying to: Mr_Shiftright (Jan 16, 2012 7:09 pm)
The code is P1647 and I have changed out the 02 sensor bank 2 and still get the same code P1647. At one time I was getting code P1230 fuel relay, changed this out and now get code P1647 only. At times you may not get fuel pressure, and go back and all is fine with exception of engine light on? The fuel relay picks up but no voltage for the pump and later voltage and all is fine?
Dennis

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

Jan 19, 2012 (12:53 pm)

Replying to: denham (Jan 19, 2012 12:05 pm)
are your sure you replaced bank 2 sensor, which is on your right as you face the car, and is placed before the catalytics?

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

Jan 19, 2012 (2:18 pm)

Replying to: Mr_Shiftright (Jan 19, 2012 12:53 pm)
I will check but replaced the sensor on the right setting in the car? From in front of the car is not bank 2 on the left?
Dennis

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

Jan 23, 2012 (8:25 am)

Replying to: denham (Jan 19, 2012 2:18 pm)
I have now replaced both 02 sensors and now can not get fuel pressure. The relay picks up but no voltage at the fuel fuse?

Messages Page 4 of 5

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