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NCT Failure - Suspension - Front Axle Imbalance

  • 12-01-2022 9:23am
    #1
    Poulgorm
    Registered Users, Registered Users 2 Posts: 813 ✭✭✭


    My daughter's car (Honda CRV, 2.0 petrol - 2012): It has just failed its NCT - front axle imbalance of 48% - only 30% allowed. Nearside was 25mm, offside was 13mm. The rear axle was almost perfect - imbalance of just 3%.

    I phoned my garage and they immediately said that it needs new front shock absorbers. However, they fitted new shocks only 2 years ago and the car has done only 6,000 km since.

    Could it be something else is causing the problem, other than the shock absorbers?

    Thanks, in advance.



Comments

  • #2
    Toyotafanboi
    Registered Users, Registered Users 2 Posts: 12,917 ✭✭✭✭Toyotafanboi


    It definitely could be something else but the best place to start will be a visual check of the front shocks.



  • #3
    Atlantic Dawn
    Registered Users, Registered Users 2 Posts: 84,761 ✭✭✭✭Atlantic Dawn
    M


    Could still be, do you know for the 2 years was it parked up on a flat surface or could it have been parked on a kerb or slopped surface meaning car wasn't on the level and so more weight was on one side than the other?



  • #4
    Neilw
    Registered Users, Registered Users 2 Posts: 3,795 ✭✭✭Neilw


    Check the tyre pressures, I go through this every year with my fathers Subaru.

    It failed on an imbalance, fitted a pair of shocks, failed again, tried on a different lane, failed again.

    Brought it to a cvrt centre and it passed on their equipment, back to the NCT with that information and they passed it.


    Last year it failed because of a soft front tyre, I was livid as it was the only thing I forgot to check.



  • #5
    BrianD3
    Registered Users, Registered Users 2 Posts: 8,513 ✭✭✭BrianD3


    It looks like the offside is the problem. It is generally thought that the lower the Mm reading, the better and that bad shocks result in high readings. However, 13 seems unusually low. The spring, top mount etc. need to be examined as well as the shock.

    I had a look online for info on how the test is done but could only find info in German. The equipment used by the NCT is Maha brand.



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