Question about 1990 Jaguar XJ6

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I have a 1990 jaguar xj6 and vehicle will turn on but wont crank on like it is not getting enough fuel only when after it has been running. it will sit overnight and then turn on in the morning like nothing is wrong with it.

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  • mendozafamil May 22, 2009

    i had the same issue short on ground under dash 7 days 600 later and the mec refused to show me affected area


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Willing to bet it is a fuel pump and or fuel filter...your symptoms were solved when I changed both on mine...

Posted on Aug 16, 2009

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The 1990 XJ6 has been sitting for the last 2 years and now won't start. The engine turns over fine. The dash gages don't seem to operate. I filled the gas tank with 5 gallons of premium gas. HELP!!!

I wish I could give you an instant fix, but I can't. Do you have spark? If so then its either your fuel pump or the CPS, crank position sensor. If no spark then it could be your coil.

Nov 12, 2011 | 1990 Jaguar XJ6

1 Answer

Engine turns over wont start

I take it your vehicle is fuel injected, if so you might need to run a diagnostic on your car to make sure there are no fault codes registering that might prevent the vehicle from starting.

Oct 23, 2011 | 1995 Jaguar XJ6

1 Answer

Friend has a jaguar 1993 xj6 3.2 s auto petrol. sometimes runs for 5 mins then stalls, mostly wont start at all. have replaced most of the ignition system, from coil all the way through to plugs, and most...

Have you checked the fuel pressure? If the car runs as you put fuel in the throttle then I would suspect the fuel pump is bad. Sounds like you covered everything else.

Aug 26, 2011 | 1997 Jaguar XJ6

1 Answer

1990 jag xj6, 4.0 eng, 114k, plugs, wires,cap&roter, fuel pump, oil&filters changed. car runs fine but fails to start at times for several days then will start on first crank and run like a top;...

under the coil is mounted a bosch ignition module with seven connections on it ,renew this module thats all it needs ,if that doesnt work change the front crank sensor ,one 10mm headed bolt holds it it on ,either one of these could have a intermittant fault ,the front crank sensor is a jaguar only part and costs about 50 euros the ignition module is a standard type and is available from a auto factor if its in your hand as it doesnt show in the catalogue but its the same as a vw golf ,vw transporter and some citreons and peugeots as well ,should not cost more than 35 euros

Dec 07, 2010 | 1990 Jaguar XJ6

1 Answer

Replaced the ignition amplifier and coil and purchased new computer for 1990 Jaguar XJ6 and the car still does not want to start. First I had no fuel now I seem to have to much fuel.

You can't clean a CPS, it is either bad or good. Replace it. Also, if there was any water in that gas tank you can crank it till the cows come home.

May 17, 2010 | 1990 Jaguar XJ6

1 Answer

Engine starts for a few seconds then seems to run backwards.

This definitely sounds like an ignition and/or timing issue. If car hasn't been tuned up lately (plugs, cap, rotor, etc) that would be the first thing I would try. Although the crank sensor is critical to proper operation of timing and fuel delivery, these usually just quit and car will not start. Would be worth it to check the crank sensor wiring and connections though as a dirty or loose connection could certainly cause problems.

Apr 07, 2009 | 1994 Jaguar XJ6

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