Question about 1998 Jaguar XJ8L

2 Answers

Wont start, no faults on ecu,keeps flooding,

Parked car in garage, next day wont start, showing 17v plus on batterrie,no faults come up on dyno scan,took plugs out wet,(petrol) dried them put them back next day. tried again still will not start, turns over.when i turn ignition key theres a wurring under bonnet which is continuous. could it be a fuel pump relay not shutting off, and flooding the engine,

Posted by on

  • yugo2224 Oct 13, 2008

    super flooding, was the problem, the cold start, stuck on, so i removed the plugs squirted oil down each bore,pulled out the fuel pump relay,turned it over a few times, then put the relay back replaced the plugs, cranked it over and voila thankyou thedonne most helpfull.

  • mjmmb2000 Oct 27, 2008

    02 XJ-8 4.0L, turns over, seems flodded. had same problem 1 year ago when weather turned cold. Will waiting a day help?

×

2 Answers

  • Level 1:

    An expert who has achieved level 1.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 3 Answers

Sounds like the old nikasil problem.Remove all of the spark plugs and squirt oil down each bore,replace plugs and she should fire up.

Posted on Oct 12, 2008

  • thedonne Oct 13, 2008

    Happy to help, safe motoring

  • thedonne Oct 29, 2008

    The 02 xj8 should have steel liners and not nikasil coated ones.It would be prudent to remove and clean plugs.When you start the car dont touch the accelerator while the engine is cranking, if by chance you do flood the engine leave it alone for an hour or two then push the accelerator to the floor while starting. This stops fuel being pumped into the engine and any existing fuel should fire, once this has happened again leave the gas alone until she fires up

×

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 2 Answers

Both the 3.2 and 4.0 V8 engines with steel liners, post '02 suffer
cold re-start flooding and Jaguar don't have a fix and will not recognisethe problem,
try asking a main dealer!

My own '04 3.2 would never fail to start from ice cold but if it was switched off
within 30 seconds, or so, a normal restart was impossible. Over fueling was the
cause and, whilst not a solution, a way around the problem is to floor the
accelerator (cutting off all injectors) and crank until it restarts. A word of caution:
Make sure your battery is in good shape and don't over heat the starter motor for cranking for more than 15 seconds, with a 30 second break. As soon as a refire is noted, back off the accelerator and 'nurse' the engine into life.

It amazes me that a luxury car like this can have such a fault and yet no fix!

Posted on Jan 21, 2012

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Why my car stopped running and wont start?


no man on earth can answer this, nobody.

engine stalled, will not restart. even next day?

2005 caddy, engine not stated, even though its engine related.



so, what are the, why not post them?

its like telling Doctor im sick and hurt 14 places but refusing to point.

post the DTCs, please. or its all a crap shoot.



Generic answer for no starts. but cranks over fast.



  1. out of fuel.


  2. battery weak. (not charged to 12.6vdc rested and parked)


  3. Fuses blown. test them.


  4. cluster CEL lamp out key on, ECU dead, check fuses.


  5. Engine flooding, may start next day. (crank WOT to clear it)


  6. lost engine compression.


  7. lost spark. to any or all cylinders (tune ups skipped)


  8. Lost fueling


  9. each of above have simple tests. ask if want to learn them.


post the codes, and engine type,size.

and watch scotty and take 2 aspirin





http://www.youtube.com/watch?v=064Ilsz8Fzg&NR=1&feature=fvwp





.

Jun 18, 2014 | 2006 Cadillac SRX

1 Answer

Duramax will not start plugged in ran then died wont start again. any ideas?


I take it that your engine is a diesel (glo-plugs) in which case the pumping of the accelerator is just good exercise for your leg but does nothing for the engine as it does not have an accelerator pump. faulty glo plugs will only make for hard starting on cold mornings so that will be out also. So the next ting that will give some idea as to the problem will be to have the fault codes read and that will show up the area and sensors that are causing your faults.

Jan 25, 2014 | Chevrolet Silverado 2500HD Cars & Trucks

1 Answer

2004 corsa c auto wont start when warm fault codes u2103 u2104 u2105 u2107


i have a meriva and battery light comes on and spedometer drops to zero then flickers i have changed alternator and still same problem sometimes car wont start fault codes are u2105 u2103 b1484 u2104 i have been told i need repair done on ecu

Nov 20, 2013 | Vauxhall Cars & Trucks

1 Answer

My car wont start i installed new batterry but it wont start when i clicking ignition key


Does the new battery turn the motor over? Sounds like bad/dirty cable connections...

Jan 28, 2013 | 2008 Pontiac G5

1 Answer

Intermitant electrical faults


some lose connection at dashboard instrument cluster -ve earthing point is lose, so it is happening , or any socket is lose.

Jan 27, 2010 | 2001 Volkswagen new Passat

1 Answer

2003 Jaguar s-type Transmission fault car wont move


First off check the battery. Try and jump start it. If that does not get the vehicle running you may have a problem with your J gate as it will not start unless in park or neutral. If an internal electrical fault has happened then the micro swith may not send a signal to the ecu to allow the car to start. the J gate is the gear selector by the way

Jan 25, 2010 | 2003 Jaguar S-Type

1 Answer

Our renault megane scenic which is 1998 keeps not starting sometimes it does and othertimes it just wont start for ages. we got aa out one time and they thought it might of been the key. its getting...


if the red light flashes on the dash its going to be an immobiliser fault, normally it is the key that is at fault, the keys are pricey about £80 plus programmimg, but you can manually override the immobiliser on the early scenics, just pop into your renault dealer and ask for your immobilser code, normally charge a tenner or so, and ask if someone can show you how to put it in.

Sep 21, 2009 | 2000 Renault 181

1 Answer

2005 mazda rx-8 automatic will not start


Does it actually crank? If so and doesnt start then its probably flooded. Been a problem with those cars since they came out but not to feel bad theres quite a few cars that flood easy do to certain sensors. If not turning over but just clicks then battery issue just keep in mind every time try to start and it doesnt that more fuel enters the system and doesnt burn off which means more flooding (to much fuel)

Sep 13, 2009 | 2005 Mazda RX-8

1 Answer

XJR 2004 showing warning on dash engine fault, parking brake fault, DSC not available and no power to engine can not accelrate


That's 3 different ECU's. So look for a common fault. Have you had reason to jump start it before this happened? If the leads were inadvertently put on the wrong way round, this could cause permanent damage to the ECU's. If not, then I would go for an earthing fault. The engine ECU is under the passenger's footwell, trace the black cables to the earthing point, I know the earthing point for the ABS unit is right next to it on top of the chassis rail. Failing any of this, I would then get the fault codes pulled at least for the engine ECU and see what it has to say.

Jul 10, 2009 | 2004 Jaguar XJR-Series

1 Answer

2003 XK8 won't start


Remove plugs, clean and dry(warm) them and try again-common fault
John

Jan 03, 2009 | 2005 Jaguar XK8

Not finding what you are looking for?
1998 Jaguar XJ8L Logo

601 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jaguar Experts

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Raygin
Raygin

Level 2 Expert

322 Answers

yadayada
yadayada

Level 3 Expert

61037 Answers

Are you a Jaguar Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...