![]() | Home > Technical (L322) > 2010 L322 Supercharged - Armchair Diagnosis? |
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garyRR Member Since: 13 Mar 2021 Location: Hampshire Posts: 1480 ![]() ![]() |
Your head gasket seals the channels between oil, combustion and cooling. Depending on where your head gasket has blown, you'd either get water in your oil or if it's blown between combustion and cooling, you'd most likely be getting exhaust gases in your expansion bottle.
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tino04 Member Since: 03 Oct 2020 Location: glasgow Posts: 32 ![]() ![]() |
..... |
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garyRR Member Since: 13 Mar 2021 Location: Hampshire Posts: 1480 ![]() ![]() |
In which case this would lead me to think it's your head gasket.
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tino04 Member Since: 03 Oct 2020 Location: glasgow Posts: 32 ![]() ![]() |
Ah well. Thanks Gary.
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dingg1 Member Since: 29 Jun 2013 Location: PORTUGAL Posts: 1351 ![]() ![]() |
First step
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tino04 Member Since: 03 Oct 2020 Location: glasgow Posts: 32 ![]() ![]() |
Cheers Dingg. This was more where my head had been, particularly your last sentence. It's the same cylinder that's flagged this time too. |
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garyRR Member Since: 13 Mar 2021 Location: Hampshire Posts: 1480 ![]() ![]() |
A sniff tester is cheap so, for the sake of £12, you can confirm or rule out in your mind before embarking on a job for £xxxx which may not be the culprit so, well worth having! You also get enough fluid for around 20 tests so, good to keep safe somewhere and test any car you need to in future. 2015 Range Rover Autobiography 4.4 SDV8 |
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tino04 Member Since: 03 Oct 2020 Location: glasgow Posts: 32 ![]() ![]() |
Ordering now! |
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jagracer Member Since: 14 Aug 2021 Location: Norfolk Posts: 113 ![]() ![]() ![]() |
I believe that there is a small pipe under the Supercharger that perishes with heat. Worth checking the Jaguar forums for information on service and faults and fixes. |
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beeza Member Since: 20 Oct 2021 Location: Dominican Republic Posts: 24 ![]() ![]() ![]() |
I have exactly the same engine with exactly the same fault. Loosing coolant, 'restricted performance' msg, running rough and steam out of the exhaust.
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