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Thread: Noise from ACE?

  1. 10th August 2013, 09:47 AM #1
    CraigH
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    Noise from ACE?

    Today I took a D2a equipped with ACE for a test drive and on the drive there were a number of round-a-bouts to navigate. When we were cornering you could hear a mild moan in the car not uncommon to a power steering pump noise. I'm guessing its ACE making the noise and not the power steering, is this normal for there to be some noise from the ACE pump?

    Cheers, Craig
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  2. 10th August 2013, 10:10 AM #2
    Graeme
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    From where is the noise originating? The pump can prduce a low frequency moan which is more pronunced in a manual when operating at very low engine revs. If the noise is coming from below the driver's feet then there could be a small pebble lodged between the valve block and the chassis.
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  3. 10th August 2013, 10:18 AM #3
    CraigH
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    It's sounds as you described a low frequency moan. We were swinging around small roundabouts and that's when you could hear it. It didn't sound bad, just you were aware it was working.
    Last one I drove was on a freeway do no real chance to here it working I guess..
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  4. 10th August 2013, 10:25 AM #4
    CraigH
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    O and it seems to be coming from within the engine bay.
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  5. 10th August 2013, 08:59 PM #5
    Road Stone Guest
    Both my Discos have ACE and make no noise, but I have heard of people getting some sort of sound.

    Cheers Jerry
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  6. 11th August 2013, 06:59 AM #6
    lewy
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    Mine makes that noise all the time when cornering.I assume it is normal.you could possibly pull a fuse somewere to confirm.
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  7. 11th August 2013, 07:24 AM #7
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    Pedro_The_Swift
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    both mine have been noiseless,,
    having said that,
    a lot of pumps were replaced under warranty because of noise.
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  8. 11th August 2013, 09:39 PM #8
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    simonl8353
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    I would suggest its the power steering pump, not the ACE.
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  9. 12th August 2013, 06:30 AM #9
    lewy
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    Possibly power steering pump,However i replaced my power steering pump 2 weeks ago and the noise is still there.Is the ace system speed reliant ie does the vehicle have to be at a certain speed to activate i thought 40km.If so do you go around roundabouts at more than 40km.
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  10. 12th August 2013, 07:39 PM #10
    Graeme
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    ACE is active above about 4 kph. ACE pressure resonance is engine speed related.
    MY21.5 L405 D350 Vogue SE with 19s. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
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