93 LeBaron driveability

Discussion in 'LeBaron' started by Dave Archambault, Oct 20, 2005.

  1. Dave Archambault

    Dave Archambault Guest

    I have a 1993 Chrysler LeBaron, 3.0, 4 spd auto...

    While cruising - not accelerating or decelerating - just feathering
    throttle... engine skips and bucks and seems to misfire... seems ok
    when accel or decel. After a brief (5-10 seconds) wide-open throttle
    burst, the problem seems to clear up for awhile, but returns later.

    Any ideas?

    Fuel filter has been changed.
    Plugs have been changed
    Replaced cracked vacuum line near EGR
     
    Dave Archambault, Oct 20, 2005
    #1
  2. Dave Archambault

    Bob Shuman Guest

    Ignition wires?
     
    Bob Shuman, Oct 20, 2005
    #2
  3. Dave Archambault

    Daniel J. Stern Guest

    First things first, check for diagnostic flash codes.

    To check the computer codes:

    With the engine off, switch the ignition key on-off-on-off-on,
    leaving it "ON". Do not
    go to "start", just "on" during this procedure.

    Watch the "Check Engine" or "Power Loss" light. It will turn on, then go
    off, then will begin to flash-out any trouble codes that have been stored.
    For instance, if it flashes:

    flash <pause> flash flash
    <long pause>
    flash flash flash <pause> flash flash flash flash flash
    <long pause>
    flash flash flash flash flash <pause> flash flash flash flash flash

    Then you have a 12 (one flash followed by two) a 35 (three and five) and a
    55 (five and five). 55 means "end of codes" or, if by itself, "No codes
    stored. Check the codes and report what you find.
     
    Daniel J. Stern, Oct 20, 2005
    #3
  4. Dave Archambault

    Dave Archambault Guest

    Checked the codes and got only a "55"
    No codes are stored.
     
    Dave Archambault, Oct 21, 2005
    #4
  5. Dave Archambault

    maxpower Guest

    Try disconnecting the EGR valve vacuum line to see if that takes care of the
    problem. If it does, replace the EGR valve.

    Glenn Beasley
    Chrysler Tech
     
    maxpower, Oct 21, 2005
    #5
  6. Dave Archambault

    maxpower Guest

    Try disconnecting the EGR valve vacuum line to see if that takes care of the
    problem. If it does, replace the EGR valve.

    Glenn Beasley
    Chrysler Tech
     
    maxpower, Oct 21, 2005
    #6
  7. Dave Archambault

    Daniel J. Stern Guest

    OK. How long since the throttle body was cleaned and the *complete*
    crankcase ventillation system (PCV) was serviced? Not just the PCV valve,
    but also the filters changed, (there are several), the lines checked and
    cleaned, etc? How long since the basic tune-up stuff was done? (Cap,
    rotor, ignition wires, spark plugs)? When was the O2 sensor last replaced,
    and what brand was used?
     
    Daniel J. Stern, Oct 21, 2005
    #7
  8. Dave Archambault

    Dave Archambault Guest

    I will do all of the things listed... plugs changed about 6 mo ago.
    I'll let you know... THANKS
     
    Dave Archambault, Oct 22, 2005
    #8
  9. Dave Archambault

    Ted Mittelstaedt Guest

    How is the idle?

    Ted
     
    Ted Mittelstaedt, Oct 23, 2005
    #9
  10. Dave Archambault

    Dave Archambault Guest

    When the problem is there... idle can be rough and varying. When
    running correctly, it seems ok... though never "perfectly" smooth.
     
    Dave Archambault, Oct 24, 2005
    #10
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