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Thread: STYPE V8 4,2L 2002 Fuel Pump No Power

  1. #11
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    Thanks guys !

    Well, it's not the Supercharged model...

    It's the classic 4,2L V8.

    I'm quite familiar with Jaguar, I'm the proud owner of a 1991 Daimler and a 1988 Sovereign both XJ40 !

    So about this S-TYPE I've spent 2h30 on it today !

    The PATS anti theft is working fine, the red light works as it should.

    There's no spark while ignition, the fuel pump stays quiet, and there's no pressure into the fuel injectors...

    Can it be the ECU ??
    Geoffrey, French Jaguarist, Private pilot and trail runner !
    22 years old / Owner of Two Jags !
    Daimler XJ40 4,0L from 1991 (70 000 miles)
    Sovereign XJ40 3,6L from 1988 (118 000 miles)

  2. #12
    Senior Member Jim_S-V6_2004's Avatar
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    Check Andy's suggestion.

  3. #13
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    Well, to tell the truth, I must fix it before Friday, it's impossible, I leave my workplace at 06:00pm, starting at 09:00am...

    The engine cranks good, battery is good ! (I charged it at home)

    My bad !!! By "blasted" i wanted to say that the car will be compacted (destruction) and will go to car's graveyard

    I think it was my last try today, i will call back the actual owner tomorrow to try to save few parts (such as owner book, leather Jaguar case and the wood gear knobe)
    Geoffrey, French Jaguarist, Private pilot and trail runner !
    22 years old / Owner of Two Jags !
    Daimler XJ40 4,0L from 1991 (70 000 miles)
    Sovereign XJ40 3,6L from 1988 (118 000 miles)

  4. #14
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    How can I check the crank sensor ?

    Trying to disconnect and reconnect ?

    How can this sensor can affect the fuel pump and the ignition coil ??
    Geoffrey, French Jaguarist, Private pilot and trail runner !
    22 years old / Owner of Two Jags !
    Daimler XJ40 4,0L from 1991 (70 000 miles)
    Sovereign XJ40 3,6L from 1988 (118 000 miles)

  5. #15
    Senior Member Andy K's Avatar
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    This sensor triggers spark and fuel.

    Not easy to check. U could check the plug.

  6. #16
    Senior Member Andy K's Avatar
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    Can’t you tow the car somewhere ?
    Has it been parked a while ?

  7. #17
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    The easiest way to check the crank sensor is.

    When you try to start the engine does the rev counter needle move, if the sensor is working you should see it going up.

    This is no perfect but it is a start.

    To work on any modern car you need a scantool.

    A cheap tool like this would be enough.

    https://www.amazon.de/JDiag-Diagnose...s%2C214&sr=8-5


    Don't worry about your dad he is just jealous. 😎😎

  8. #18
    Senior Member Jim_S-V6_2004's Avatar
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    It's such a shame Geoffrey, they are great cars and we don't think it's a difficult fix but needs time.

    Can you have the car taken to a safe location, or can you get the scrap dealer to let you work on it there in his yard and fix it? Maybe he has other S Types for spare parts there?

    .

  9. #19
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    Ahahahaha !!

    I go back to the car at the end of the day !

    You guys are very very nice to help me a lot and so quickly ! A big thanks !!!

    About the ECU it's the last component we would suspect, so.

    For the cranckshaft with a voltmeter I can already check if there is a tension, it could advise me if it works or not ?

    Even if it was late yesterday, I called the owner and she decides to give me a bit more time (to next week)

    The car is parked there since a month and half.

    I know there are great cars, I love my two XJ40 and when I sat for the first time on that JAg S-TYPE I had the same feelings !!!

    When I try to start tge engine nothing is moving on the dashboard, the rev counter needle stays at 0 RMP

    Unfortunatly, there's no other S-TYPE parked nearby the garage, it's a small garage, fixing few cars...

    I'll call one of my friend to see if he has got a scantool
    Geoffrey, French Jaguarist, Private pilot and trail runner !
    22 years old / Owner of Two Jags !
    Daimler XJ40 4,0L from 1991 (70 000 miles)
    Sovereign XJ40 3,6L from 1988 (118 000 miles)

  10. #20
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    As the tachometer is not moving.

    You could now try this test. It only takes a few minutes.


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