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Revs dropping

  • 09-04-2011 5:03pm
    #1
    Sparkie93
    Registered Users, Registered Users 2 Posts: 101 ✭✭


    a few times now when ive been driving along the revs on my opel zafira start dropping and the car starts jerking it does it for a minute or so and then it stops it also switched off when i was slowing down at traffic lights
    it only seems to do it when im driving for a while its fine on short trips
    does anyone know whats wrong with it ?:confused:


Comments

  • #2
    Seth Brundle
    Moderators, Politics Moderators Posts: 42,146 Mod ✭✭✭✭Seth Brundle


    It could be some sensor busted. I would get her hooked up to a diagnosis machine and take it from there.


  • #3
    Nissan doctor
    Closed Accounts Posts: 8,223 ✭✭✭Nissan doctor


    Is there an engine warning light coming on? If not then the Opels are prone to the crank breathers and throttle body getting clogged up, especially if it does alot of short trips.


  • #4
    LookBehindYou
    Registered Users, Registered Users 2 Posts: 961 ✭✭✭LookBehindYou


    Sparkie93 wrote: »
    a few times now when ive been driving along the revs on my opel zafira start dropping and the car starts jerking it does it for a minute or so and then it stops it also switched off when i was slowing down at traffic lights
    it only seems to do it when im driving for a while its fine on short trips
    does anyone know whats wrong with it ?:confused:

    1 : Coil pack ( fits on top of spark plugs ) known to go faulty.
    2 ; Throttle Body (Back of engine) You need to clean out your throttle body. Particularly the 2 breather holes under the butterfly valve from the inside. One hole is tiny and makes all the difference. There is a small hose going in to the bottom of it and it is usually full of gunky oil, so just take it off and put a paperclip through the small hole to clear it.
    3 : You may be advised that it is the Mass Air Flow sensor, but in most cases its not the problem.


  • #5
    Sparkie93
    Registered Users, Registered Users 2 Posts: 101 ✭✭Sparkie93


    thanks for the replies i guess ill have to bring it to the garage its due an nct in a few weeks:(


  • #6
    Sparkie93
    Registered Users, Registered Users 2 Posts: 101 ✭✭Sparkie93


    i was driving it today and it started doing the same thing again and a warning light came on the one with a spanner on top of the car


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  • #7
    shamwari
    Closed Accounts Posts: 2,142 ✭✭✭shamwari


    Sparkie93 wrote: »
    i was driving it today and it started doing the same thing again and a warning light came on the one with a spanner on top of the car

    There will almost certainly be a fault code logged. You can try cleaning out the breathers and throttle body as advised, and failing that, the car will need to be scanned.


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