1997 Chrysler LHS Check Engine light

Discussion in 'General Motoring' started by toth.zoltan, Mar 28, 2006.

  1. toth.zoltan

    toth.zoltan Guest

    Hi All!

    I have a '97 Chrysler LHS.
    When i stop at a traffic light and the transmission is in "D", i push
    the brake. The "Check engine" light is coming on for a second with the
    oil lamp and
    after off. If the lamps is on and i turn the transmission to "N" the
    lamps will off.
    When the car is going the light is off. Light only when i'm stop and
    the transmission is in "D" (or "3").
    What is the bug? Any idea?
    That possible the oil pump become wrong?
    What should i do?

    Thanks!
     
    toth.zoltan, Mar 28, 2006
    #1
  2. toth.zoltan

    maxpower Guest

    --

    I would start with reading what you posted and seeing if you can understand
    what you wrote.

    Glenn Beasley
    Chrysler Tech
     
    maxpower, Mar 28, 2006
    #2
  3. toth.zoltan

    toth.zoltan Guest

    Sorry...My english is poor. I'm just learning it!
    I'm Hungarian!
    Should i try again...?!?!
     
    toth.zoltan, Mar 28, 2006
    #3
  4. toth.zoltan

    maxpower Guest

    --

    Sure.
     
    maxpower, Mar 28, 2006
    #4
  5. toth.zoltan

    Bill Putney Guest

    Your post made perfect sense to me.

    It is almost certainly a bad oil pressure switch - a very common
    problem, and what you describe is exactly how they behave. You should
    replace the switch and also have the pressure read by a real pressure
    gage temporarily hooked up, or check pressure first, then replace switch
    only if necessary, but 99% of the time with the Chryslers it is the
    switch going out of calibration due to internal seepage (minor leaking)
    and building up of pressure in the selaed connector cavity. The
    pressure check is just to confirm that there is not a real pressure problem.

    Bill Putney
    (To reply by e-mail, replace the last letter of the alphabet in my
    address with the letter 'x')
     
    Bill Putney, Mar 28, 2006
    #5
  6. toth.zoltan

    toth.zoltan Guest

    Thanks!
    I will see that...
     
    toth.zoltan, Mar 28, 2006
    #6
  7. toth.zoltan

    maxpower Guest

    --



    What does the check engine lite have to do with the oil lite Bill? How did
    that part make perfect sense to you? You never answered it.
     
    maxpower, Mar 28, 2006
    #7
  8. toth.zoltan

    Bill Putney Guest

    It appears that you did in fact understand his post.

    Frankly, I missed the part about the CEL - in too much of a hurry
    getting ready for work. The oil pressure light has no connection to the
    computer that turns on the CEL - it is a dumb contact closure pressure
    switch, so the two are likely not related (except maybe a low idle speed
    condition).

    Bill Putney
    (To reply by e-mail, replace the last letter of the alphabet in my
    address with the letter 'x')
     
    Bill Putney, Mar 29, 2006
    #8
  9. toth.zoltan

    philthy Guest

    do u have a check engine lite on at all other than u stated???
    sounds like there is a vac. issue and the engine drops rpms to the point of
    stalling but recovers sound like that might be it???
     
    philthy, Mar 29, 2006
    #9
  10. toth.zoltan

    Joe Guest

    Don't type in AOLese, man. The poor guy is having to translate.

    Here's something for toth: Have you checked the oil level? On the dipstick,
    I mean. If it's low, stopping could be causing low oil pressure, and the
    lights could be working correctly.
     
    Joe, Mar 29, 2006
    #10
  11. toth.zoltan

    maxpower Guest

    --


    Thats the part that made no sense
     
    maxpower, Mar 29, 2006
    #11
  12. toth.zoltan

    Bill Putney Guest

    maxpower wrote:
    Bill? How

    did
    OK - I understood you to mean it was a language problem.

    Is this maybe a power drop at worst-case (warm engine, in gear at idle)
    low idle conditions - CEL lights don't usually go back out like that do
    they?

    Bill Putney
    (To reply by e-mail, replace the last letter of the alphabet in my
    address with the letter 'x')
     
    Bill Putney, Mar 29, 2006
    #12
  13. toth.zoltan

    Steve Guest

    maxpower wrote:



    I assume he meant the Check GAUGES light, which IIRC comes on whenever
    either the oil pressure light comes on or an overheat occurs.
     
    Steve, Mar 29, 2006
    #13
  14. toth.zoltan

    maxpower Guest

    --

    That's why I advised to proof read and try again, I got a brain cramp right
    now and cant for the life of me remember if this vehicle has a check gauge
    lite, I don't think the LH does. Bill????
     
    maxpower, Mar 29, 2006
    #14
  15. toth.zoltan

    Steve Guest

    I assume he meant the Check GAUGES light, which IIRC comes on whenever

    First-gen LH cars do. Trust me, I'm eternally thankful for it! My wife
    was driving our '93 years ago when a cheap-sh*t aftermarket waterpump
    decided to shed its pulley right off its shaft. The timing belt didn't
    jump and was sliding around the pulley which was wedged in the little
    bulge in the timing cover, miraculously. Wife didn't notice the climbing
    temp gauge until the "check gauges" light came on and the chime started
    dinging at her. She pulled over before the aluminum heads curled up like
    newspaper in a bonfire, so the only damage was a smoking (but still
    working!) timing belt and a new waterpump. I credit that little light
    with saving me a LOT of money and cusswords.

    Now what I *don't* know for sure is if it also pops on when the oil
    pressure light does. I thought it did, but now that Bill said he thought
    that it doesn't get routed through the computer, I'm not so sure.
     
    Steve, Mar 29, 2006
    #15
  16. toth.zoltan

    Bill Putney Guest

    2nd gen does not have Check Gauge light. But Stever says 1st gen does
    not (below), and that's all that matters for this thread.
    I should have kept out of this since I only know 2nd gen, and this is
    first gen. I will say that on second gen, the wiring between oil
    pressure switch and the low pressure light has absolutely no connection
    to anything else - no computers, nothing - apparently not the case in
    1st gen (with Check Gauge light). What you guys say ebout the OP
    probably meaning Check Gauge light (which instantaneously turns on and
    off with the problem) instead of CEL (which latches) makes sense. If
    that is in fact the case, then my original post about the pressure
    switch/sender unit almost certainly being the problem is probably right
    (IOW - in this case in spite of my not understanding everything, I
    lucked out and possibly gave the right answer). :)

    Bill Putney
    (To reply by e-mail, replace the last letter of the alphabet in my
    address with the letter 'x')
     
    Bill Putney, Mar 30, 2006
    #16
  17. toth.zoltan

    maxpower Guest

    --

    Then more then likely the OP means check gauge lite comes on which more then
    likely is the oil sending unit/lubrication problems. The check engine lite
    is not tied into it at all.

    Glenn Beasley
    Chrysler Tech
     
    maxpower, Mar 30, 2006
    #17
  18. toth.zoltan

    toth.zoltan Guest

    HI All!

    Thanks for the answers!

    So...My man changed the motor oil and the oil filter in the car.
    The CHECK ENGINE and oil pressure light turns on yet.
    Only when the car (and i think the oil) is hot. After i go about 15-20
    mile
    and i stop at a traffic light. The transmission is in "D". The RPM
    falls down to 500-600
    and the two light turns on. I change gear to "N" and that are off.
    No overheating! A water tempareture about 90 celsius.

    Is the oil pump or crankshaft bearings can cause this problem???
    Should i see any other sign if there are oil pump or shaft bearing
    problem??

    Thanks!
     
    toth.zoltan, Apr 3, 2006
    #18
  19. toth.zoltan

    maxpower Guest

    The first thing to do is check the oil pressure with a manual gauge, if it
    is ok, replace the oil sending unit. Then you need to find out what fault
    code is set (if any) by connecting a scan tool to the vehicle.
     
    maxpower, Apr 3, 2006
    #19
  20. toth.zoltan

    toth.zoltan Guest

    Ok!
    I will see that first...
    but...where is the oil pressure switch and sending unit? Where can i
    find them?

    thx
    Sands
     
    toth.zoltan, Apr 3, 2006
    #20
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