Question about 2001 Jaguar S-Type

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S Type Jaguar 3.0 Air leak somewhere in the engine.

Air leak somewhere in the engine. Car is idling up and down and starts to studder. Engine light comes on.

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It sounds like the classic symptoms of air leaking into the engine after air flow sensor. check the hoses on top of the engine. Also spray detector spray around the inlet manifold this will get dragged into the engine at the leak and will make a noticeable affect on the engine note/smoothness. Leaks around the inlet manifold is quite a common fault on s type. see other posts with similar symptons earlier in jaguar fixya.
Good luck. Please let me know if you find the fault.

Posted on Apr 23, 2009

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Posted on Jan 02, 2017

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Jaguar s type 3.0 v6 2001 unevan tick over and cuts out when in traffic will tickover at750 revs then drops to 500 and cuts out otherwise car runs fine and performance is as normal


sounds like classic symptoms of air leaking into engine after air meter, check air hoses to engine then when engine at idle - spray detector spray around the inlet manifold and if this is leaking at its gasket (very common problem on V6 at the rear of the engine) the engine note will change. see earlier posts with similar problems. hope this helps - good luck.

Apr 30, 2010 | 2001 Jaguar S-Type

1 Answer

2000 Jaguar S-type. Changed passenger side ignition coils and broken exhaust tube on manifold. Now vehicle studders when starting and immediatly turn off. Can you help with this issue.


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1 Answer

My jaguar 2001 s-type cuts off when I sit at a stop light.


If the car starts again without trouble - it is probably an air leak on the inlet manifold or associated pipework. If the car is very 'lumpy'' then stops it could be a coil-pack or mass airflow assembly - also this fault sometimes triggers a gearbox fault warning as the engine and gearbox become out of sync. due to engine misfires.
The air leak fault will not always register in the fault code memory of the car whilst in its early stages. As the fault becomes greater - the engine will become hesitant - then stop. This is the time to spray leak detector spray around the pipes or manifold joints, as the spray gets 'sucked' into the leak and the engine note will change noticeably.
Hope this helps - good luck.

Oct 04, 2009 | 2000 Jaguar S-Type

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