406 idle problem

Discussion in 'Peugeot 406' started by fsonnlei, Nov 16, 2006.

  1. fsonnlei

    fsonnlei Guest

    Hi all.

    My car (PUG 406 2.0 2000, RFR engine) has a weird problem: the Idle
    speed fluctuates +/- 50rpm (you can feel the vibration, and is very
    irritating). But some times, the idle is perfect.

    My mechanic suspect on the coil pack. The dealer (actually I've sent
    the car to 2 different dealers) hasn't found any error code. And the
    last one, told me that vibration "is normal".

    The mechanic has already change/clean TPS, stepper motor, spark plugs.
    The car feels normal on speed, so the problem is only when idle.

    Any suggestion? Thanks on advance.
     
    fsonnlei, Nov 16, 2006
    #1
  2. fsonnlei

    G Cadman Guest

    Look at the vacumm lines for a leak.
     
    G Cadman, Nov 17, 2006
    #2
  3. fsonnlei

    fsonnlei Guest

    Hi. Thanks for the suggestion.
    I've looked for a leak and it looks fine. This vibration could be the
    injectors or a bad spark plug? (already changed)
     
    fsonnlei, Nov 20, 2006
    #3
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