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    • Kennyn1980
    • By Kennyn1980 28th Feb 18, 4:50 PM
    • 6Posts
    • 2Thanks
    Unidentifiable knocking on 58 Mitsubishi Lancer
    • #1
    • 28th Feb 18, 4:50 PM
    Unidentifiable knocking on 58 Mitsubishi Lancer 28th Feb 18 at 4:50 PM
    ***Title should have read 58 plate Mitsubishi Lancer!***

    I was just wondering if anyone could give any thoughts on this.

    I have a 58 plate Mitsubishi Lancer GS3 petrol (not an Evo - just a bog standard Lancer). It has 100k miles on the clock, and so far it has been bulletproof during the several years I've had it. It's been regularly serviced and well maintained.

    Around August 2017, it started to develop a knocking underneath, which was generally worse when driving on uneven roads and turning corners. I had it looked at shortly after this and no issues could be found. It passed it's MOT without any issues two months later. I had the knocking investigated again in December, but no issues found. The knocking has been getting gradually worse, and I took it to a garage last week to be checked over again when it also required new front discs and pads. Again, they couldn't identify the cause, even though the mechanic could clearly hear the knocking when he took the car out for a test after replacing the brakes.

    My concern is that some big expensive problem is brewing and I can't seem to get it identified and fixed before anything happens. Three separate garages haven't been able to pin down the cause (four if you include the MOT test center) , yet the knocking is so loud you can clearly hear it over the radio, even if it is turned up quite loud.

    I'm starting to wonder if I should think about trading the car in for something else, or cough up the money to get the local Mitsubishi dealer to investigate.
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    • marlot
    • By marlot 28th Feb 18, 4:55 PM
    • 3,317 Posts
    • 2,417 Thanks
    • #2
    • 28th Feb 18, 4:55 PM
    • #2
    • 28th Feb 18, 4:55 PM
    It sounds like the suspension has been checked a few times. Hopefully they also checked the exhaust, engine and gearbox mounts? Have you checked the spare wheel and anything else that might be loose in the boot? It wouldn't be the first time that a mysterious knock turned out to be something inside the car.
    • n217970
    • By n217970 28th Feb 18, 4:55 PM
    • 292 Posts
    • 225 Thanks
    • #3
    • 28th Feb 18, 4:55 PM
    • #3
    • 28th Feb 18, 4:55 PM
    Anyone checked the top mounts? My (Volvo) recently passed an MOT while knocking badly but had no advisories. When I finally got round to fixing it last month the top mounts were completely knackered.
    • EdGasketTheSecond
    • By EdGasketTheSecond 28th Feb 18, 7:30 PM
    • 487 Posts
    • 271 Thanks
    • #4
    • 28th Feb 18, 7:30 PM
    • #4
    • 28th Feb 18, 7:30 PM
    It can be drop links; they can knock without play being detectable; very cheap fix. You need to identify where the noise is coming from; i.e. front or back and then which side. Try bouncing the suspension when its stationary and see if that makes it knock.
    • sleepyjones
    • By sleepyjones 11th Mar 18, 10:55 AM
    • 3,760 Posts
    • 294,009 Thanks
    • #5
    • 11th Mar 18, 10:55 AM
    • #5
    • 11th Mar 18, 10:55 AM
    First up, I don't know a thing about cars (So a lot of people will probably do the whole "What tf is this guy on about?" but last year I noticed my Jeep had a similar problem, when turning it would make a knocking noise ... I just kinda ignored it, to be honest, as at the time I was really driving much, a few months prior I got a flat on the motorway so put the doughnut on, then had to get a new tyre fitted, I assumed the knocking noise was the tracking or something and when the wheel was replaced something was "off", so when it went in for it's MOT I mentioned it to the mechanic when I took it in, asking him to check the tracking.

    Passed it's MOT, I can't remember what he told me was making the knocking noise, but he welded something and it fixed it. Sorry, that probably doesn't help much, but might be a simple weld job (I think he charged me £50 on top of the MOT, so not overly expensive). I'm not saying it's something to do with the tracking, that's just what I thought in my "I don't know a thing about cars" mentality.
    *Good Luck * Be Lucky * Stay Lucky*
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