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2005 mk2 Ford Focus, rattling/knocking sound on acceleration

  • 30-10-2016 8:35pm
    #1
    Ush1
    Registered Users, Registered Users 2 Posts: 11,482 ✭✭✭✭


    As the title, I've got a 2005 mk2 Ford Focus that is giving a rattling or kinda knocking sound when accelerating. It's definitely louder at lower revs.

    Any ideas?


Comments

  • #2
    racinggreen
    Registered Users, Registered Users 2 Posts: 14 ✭racinggreen


    Which engine?


  • #3
    Ush1
    Registered Users, Registered Users 2 Posts: 11,482 ✭✭✭✭Ush1


    racinggreen wrote: »
    Which engine?

    1.4 petrol.


  • #4
    JP 1800
    Registered Users, Registered Users 2 Posts: 389 ✭✭JP 1800


    It could be a misfire, those cars give issues with the coil pack and also water leaking into the cam cover filling the spark plug wells with water. Is the check engine light on?


  • #5
    Ush1
    Registered Users, Registered Users 2 Posts: 11,482 ✭✭✭✭Ush1


    JP 1800 wrote: »
    It could be a misfire, those cars give issues with the coil pack and also water leaking into the cam cover filling the spark plug wells with water. Is the check engine light on?

    No it isn't. I changed the spark plugs last week, no signs of wet or anything on them.


  • #6
    Ush1
    Registered Users, Registered Users 2 Posts: 11,482 ✭✭✭✭Ush1


    Anybody else have any ideas?


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  • #7
    Hal1
    Registered Users, Registered Users 2 Posts: 8,720 ✭✭✭Hal1


    Try changing the oil if you haven't done it recently. In the cold older oil will take longer to heat up to be fluid enough between valves etc, so it will be noisier inside the cylinder head.


  • #8
    Ush1
    Registered Users, Registered Users 2 Posts: 11,482 ✭✭✭✭Ush1


    Hal1 wrote: »
    Try changing the oil if you haven't done it recently. In the cold older oil will take longer to heat up to be fluid enough between valves etc, so it will be noisier inside the cylinder head.

    Was hoping you'd come along Hal!

    I did change the oil a few months back with semi synthetic oil but it didn't seem to make much difference.


  • #9
    mullingar
    Registered Users, Registered Users 2 Posts: 5,340 ✭✭✭mullingar


    Engine mount???


  • #10
    Hal1
    Registered Users, Registered Users 2 Posts: 8,720 ✭✭✭Hal1


    Could well be an engine mount, and there easy enough to check with a pry bar (passenger/gearbox). The driver side is easy to check, it has a cap which can be removed, inside is a cushion check it for rips or it might be leaking grease. The other thing I would say about the rattle is check the heat shield under neath the car around the exhaust. All this can be checked in a local garage on a lift if your not equipped to do so yourself.


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