Caravan rough idle

Discussion in 'General Motoring' started by John61, Jun 4, 2006.

  1. John61

    John61 Guest

    Hi,

    My 94 Caravan 3.3 (180K Miles) recently started rough idle in all gears. But
    seems ok when the car is moving. It shakes a lot with the rough engine
    anytime even in Parking and Neutral. At red lights I often feel it's going
    to stall, but release the brake, it runs fine.
    Any advice is appreciated.

    John
     
    John61, Jun 4, 2006
    #1
  2. John61

    Bob Shuman Guest

    If plugs and wires are known good, then thoroughly clean the throttle body
    and choke plate to solve your problem. A can of good fuel injector cleaner
    (Dupont Techron) in the tank won't hurt either.

    Bob
     
    Bob Shuman, Jun 5, 2006
    #2
  3. John61

    jdoe Guest

    VAcum leak or egr valve. If egr it will not throw a mil like the newer (96
    on) will.
     
    jdoe, Jun 21, 2006
    #3
  4. John61

    FLY135 Guest

    Have the vacuum check. Look around for cracked or broken vacuum hoses.
    An engine will idle rough and/or die at idle if there is a serious
    vacuum leak. Do you have any trouble with the A/C vent changing
    between floor/dash/defogger? That's usually controlled by vacuum. I'm
    not familiar with the caravan, but thsi is common with cars.
     
    FLY135, Jun 21, 2006
    #4
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