2003 Civic noise on overnight cold statup?

Discussion in 'Civic' started by CT, Sep 11, 2003.

  1. CT

    CT Guest

    Hi!
    I have a '03 civic that sounds like it has a slightly noisy valve train on
    startup when initially started in the morning. It goes like this: I start
    the car and the RPMs jump up and come down to rest around 1000 RPMs and this
    is when the noise is heard. The RPMs will SLOWLY get to about 800 RPMs all
    while the noise is still heard. Then suddenly RPMs jump a tiny bit, about 50
    RPMs, and the slight chatter noise from the engine is gone. Is this normal?
    Does it happen to anybody elses civic?

    Thanks in advance!
    Chris
     
    CT, Sep 11, 2003
    #1
  2. CT

    John Horner Guest

    I would try a different brand of oil filter. Yours might have a defective
    anti-drain back valve resulting in a dry start in the morning.

    John
     
    John Horner, Feb 6, 2004
    #2
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