Vibrating/jumping accelerator

  1. Newbie Joined: Sep 2012 Posts: 16
    #1
    I'm back again with another problem, sorry

    My car is a 1.1 2002 desire with less than 35,500 miles done... FSH and only 2 owners (family friend, and family friend's Gran).

    The issue is that it seems that whatever gear I'm in, as soon as it hits around the 3/3.5 revs, the accelerator jumps//bounces/vibrates as if to tell me to change gear, when I change, it seems to stop until again I get to roughly the same rev mark. This is on any type of road, motorway, smooth road, country roads, in case that changes anything.

    I suppose that's relatively normal, however when I'm in 5th gear and accelerating, unless I gain speed really, really slowly, it seems to vibrate almost as if to say "ouch, too hard!"

    Is it a fact of me accelerating to harshly, or might there be something wrong?

    My grandad used to be a grease monkey working in a garage, and has offered to just have a look at my spark plugs and all that basic servicing stuff, but I'm not sure I'd be able to let him have a proper look at anything else, if anything is wrong... Although I'm sure he could, I'm not betting much on his replacement hips holding him up doing anything too manual on a car!

    Am I just being overly paranoid?!

    Thanks for any help in advance!
  2. Super Moderator Joined: Nov 2009 Cambridge(ish), UK. Posts: 10581 BMW 5x M50d.
    #2
    could be something as simple as the throttle cable is routed poorly, allowing it to vibrate at certain revs against the engine or something. This vibration is passed down the cable into the pedal and you feel it. I've had the issue I just described, and it's surprising how much vibration the pedal gets like this.
    1 user thanked this post:
  3. Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.
    #3
    Air filter housing can sometimes vibrate on either the bulkhead or slam panel.
    1 user thanked this post:
  4. Newbie Joined: Sep 2012 Posts: 16
    #4
    Quote:
    Originally Posted by Ross View Post
    could be something as simple as the throttle cable is routed poorly, allowing it to vibrate at certain revs against the engine or something. This vibration is passed down the cable into the pedal and you feel it. I've had the issue I just described, and it's surprising how much vibration the pedal gets like this.
    Quote:
    Originally Posted by stevo67 View Post
    Air filter housing can sometimes vibrate on either the bulkhead or slam panel.
    Thanks for the replies, could this damage the car in any way, or cause problems other than the vibrating? I don't want to ignore it and to be an issue, but I also don't want to pay extortionate amounts getting it checked if it will be fine!