1999 Cirrus LXI 2.5 6cyl rough Idling, 184,000 km , the dealer cannot fix it!

Discussion in 'Cirrus' started by Expo, Jul 9, 2007.

  1. Expo

    Expo Guest

    1999 Cirrus LXI 2.5 6cyl rough Idling, 184,000 km , the dealer cannot fix

    The car is in the dealer shop for over a week as I write this, the problem
    was some what intermittent, now it has become consistent.

    I had some prior work done days before this rough idle cam up, They
    connected the scanner while I was there, when it was idling rough, the
    scanner indicated nothing.

    The initial work was to replace 2 leaking frost plugs, purge fuel system.
    plugs wires, brakes, flush cooling system.

    No service light or error codes are indicated, The car runs great on th
    highway, drving, but if you stop for 10 seconds or so, the rough idling

    They have tried apparently, EGR, Fuel filter (my request), Cataylic
    converter (removed it ), disconnected A/C compressor, recheck hoses, recheck
    their previous work


    Expo, Jul 9, 2007
  2. Expo

    Expo Guest

    Forgot this the transmission had a filter chang aswell on the intial job
    Expo, Jul 9, 2007
  3. Expo

    Gyzmologist Guest

    It could be a bad O2 sensor showing a rich condition, or a leaking fuel
    injector. At an idle the exhaust shows rich causing the ECU/PCM to lean
    out the mixture to compensate.



    07 Saturn Sky
    98 Dodge Status ES
    94 Mitsubishi Eclipse GST
    Gyzmologist, Jul 15, 2007
  4. Expo

    Expo Guest

    Car is still in the garage, they think it is the Distributor.... they
    Expo, Jul 17, 2007
  5. Expo

    Expo Guest

    The distributor was replaced, so far so good

    Expo, Jul 25, 2007
  6. Expo

    Bob Shuman Guest

    Distributor? On a 1999? ... Me thinks not.

    Bob Shuman, Jul 25, 2007
  7. Expo

    Steve Guest

    99 Mitsubishi 2.5- could be. I've never worked on one, but I know that
    the Mitsushitsi 3.0 v6 kept a distributor years and years after the
    Chrysler v6 engines all went to distributorless ignition.
    Steve, Jul 25, 2007
  8. Expo

    Bob Shuman Guest

    Although just one data point, my 1991 3.0L V6 (Mitsubishi 3000GT) is

    The last vehicle I owned that had a distributor was a 1980 GM 231 V6 Chevy
    Monza. I've purchased 7 vehicles (that I can recall) since then, and none
    of these have had a distributor, condensor, or points!

    In my opinion elimination of a distributor and the move to electronic
    ignition, coupled with the move to fuel injection resulted in huge
    improvements in vehicle reliability and maintainability.

    Bob Shuman, Jul 25, 2007
  9. Expo

    Steve Guest

    Same block, but VERY different engine managment system from the 3.0 as
    used in Minivans through the mid 90s.

    I agree on the electronics- the last car I had with points was a '69
    model (and its been converted to electronic).

    But a lot of 90s and 2000s vehicles still had distributors that were
    PURELY distributors. No advance mechanism, no electronic trigger, just a
    trigger wheel to tell the computer which cylinder is coming up next for
    the sequential fuel injection. Electrically they're just a cap and rotor
    to aim the fire at the correct cylinder. Those are a zero-maintenance
    item. My father has a Dakota with a 5.2 Magnum, 15 years old and 220,000
    miles and the distributor cap has never even been off of the distributor.
    Steve, Jul 25, 2007
  10. Expo

    maxpower Guest

    That application still uses a distributor

    maxpower, Jul 25, 2007
  11. Expo

    Bob Shuman Guest

    thx. Amazing.
    Bob Shuman, Jul 26, 2007
  12. Expo

    Expo Guest

    well now a CHECK ENGINE , apparently it is related to the
    Catalytic convertor, go figure, it cam on 1 week later, the dealer showed me
    the error, then reset it. @ 2 weeks went by it came back on, and is still

    Expo, Aug 15, 2007
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