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LR4 SCV6 Engine noise (and Fan problems)

Discussion in 'LR4' started by Arman, Apr 3, 2020.

  1. Arman

    Arman New Member

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    Hello everyone!

    Recently my LR4 started to throw Engine Fan errors, and low frequency repetitive ticking noise appeared (when idling and warmed up).

    The engine also sounds similar to diesel and vibrates at idle, however it is a petrol engine, and it's been like this since I bought it 3,000 miles ago. There is no knocking at High RPM and it pulls well. Is this noise normal for SCV6?

    I am going to replace the fan/clutch unit, but I was wondering if the rattling noise could be caused by a worn pulley?

    Car is 2015 LR4, SCV6 3.0 petrol engine ~80,000 miles

    Maybe it is time to do waterpump, cooling houses, belt and pulleys service? (since I am going to remove the fan anyway). Does anyone has recommended service intervals for SCV6?

    This is video of warmed up engine, ticking noise sounds like it is coming from the fan (which it seems having troubles to spin?). But I am mostly worried about the engine noise itself (doesn't sound as bad as many timing chain videos)
     
    Last edited: Apr 3, 2020
  2. Strizzo

    Strizzo Active Member

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    Looks like the fan clutch has let go, the rattling sound could be the supercharger coupler but would be unrelated to the codes you’ve been getting.
    The couplers usually start making noise around 75k miles.
     
  3. Red Top Engine

    Red Top Engine Member

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    My LR4 (with no supercharger) started making same ticking noise. It's not the pulley nor the water-pump as I've replaced all of those. Curious what this is, but I suspect the fan clutch as well.
     
  4. Arman

    Arman New Member

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    Thank you everyone for replies!
    I can confirm that the fan and supercharger were source of both noises (low frequency clicking noise is from fan, high frequency knocking noise is from supercharger).
    I plan to do complete maintenance (since I have to remove a lot of parts anyway).

    Does anyone know where can I find maintenance schedule for SCV6 Discovery 4 (LR4)?

    Engine to do list so far:
    1. Fan: LR012644 (Hella)
    2. Supercharger isolator/coupler: EAT-361506a (http://superchargerparts.com/index....r-isolator-coupling-ls9-lsa-engine-09-53.html)
    3. Intake Manifold Gasket: x2 LR041681
    4. Throttle Body gasket: LR048165
    5. Intercooler To Manifold gasket: LR041680
    6. Waterpump kit: LR097165 + LR030593 + LR028136
    7. Primary and Secondary Serpentine Belts: LR051263 and LR011327

    Questions:
    1. Does anyone has (or know where to get) dealership level service manual for 2015 LR4? (primarily for torque values and assembly/disassembly order)
    2. What part number, where and how much oil should I get for the supercharger?
    3. Are there any pulleys that should also be replaced (together with betls and water pump?)
    4. Do I need to replace any of the cooling hoses? (if they are prone to fail I will rather replace them now)

    Few links on relevant threads:
    1. Supercharger isolator replacement: https://www.landroverworld.org/threads/supercharger-rattle.40684/page-3
    2. Waterpump replacement: https://www.landroverworld.org/threads/diy-water-pump-and-crossover-pipe-video.30519/
     
    Last edited: Apr 19, 2020
  5. Fuji4

    Fuji4 Full Access Member

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    2. 3.4 oz. don’t overfill. I made that mistake. Available on eBay. Or Eaton suppliers like superchargersonline.
    3. Replace the tensioner pulley. Preferably with a metal wheel. Plastic one broke on me.
    You should do the crossovers if you have the old style. I don’t know when they switched to the bettor molds but it was around 15-16.
     

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