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Thread: D2 Diesel Knock

  1. 11th October 2009, 01:03 PM #1
    thorby
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    D2 Diesel Knock

    My D2 has this extremly loud diesel knock I know diesels do knock but mine is excessive and I have listened to other D2's and they arnt any near as loud as mine. any idears as to why the excessive noise
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  2. 11th October 2009, 01:40 PM #2
    Graeme
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    At idle? Otherwise, at what revs & load?
    MY21.5 L405 D350 Vogue SE with 19s. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
    VK2HFG and APRS W1 digi, RTK base station using LoRa
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  3. 11th October 2009, 06:16 PM #3
    thorby
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    D2 diesel knock

    Its noisey at idle but much more prounounced as you take off and with normal town driving the knock is very prounounced I have had many diesels over my life and have never found one so noisey I have heard quieter old trucks
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  4. 11th October 2009, 08:24 PM #4
    Graeme
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    The TD5 is noisier at and just above idle if the EGR system is not operational, eg it may have been removed (getting more common) or just disconnected. It is noisier when cold until the coolant temp sensor signals it's warmed-up and the ecu changes its operating parameters. If the MAF is not functional (disconnected or not operational due to such things as a blown fuse from a shorted wiring harness across the front of the engine) then the engine can be noisy up to at least 1800 rpm.
    MY21.5 L405 D350 Vogue SE with 19s. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
    VK2HFG and APRS W1 digi, RTK base station using LoRa
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  5. 13th October 2009, 12:38 AM #5
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    2 rocks
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    This might sound silly and not very technical...but are all the bolts present and tight on the acoustic shell?
    I had a missing and now a loose one (must fix that ) and you'd be amazed the difference it can make...
    Cheers
    Mike
    '00 D2 Td5 'Alice'
    '03 V6 Freelander 'Phoebe'
    '04 Td4 Freelander 'Harry'
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