Lexus cars and trucks

December 31, 2009

RX 300: Transmission fix led to check engine lights on

Filed under: Uncategorized — admin @ 5:01 pm

Hi,

I have a 99 RX300, i just had my transmission fixed. The car just stop
working – and i have realized that these transmission problems are
common in RX300s. But the real problem now is that right after i picked
it up from the shop, the check engine lights came on, also the trac off
lights come on after few miles – since it was saturday the aamco shop
where i had my transmission fixed was closed and i was travelling. when
i took it to the aamco shop near my house they said it was some oxygen
sensor code. I never had the check engine lights come on at all before.
My question is how could fixing the transmission lead to check engine
lights on?

I tried to reset it by unplugging the battery, but after i plugged it
back in, the lights came on after few miles.

Please help me with whatever you can!!!

3 Comments »

  1. "Bhavik Shah" <bhav…@gmail.com> wrote in message

    news:1108661968.365710.102410@o13g2000cwo.googlegroups.com…

    - Hide quoted text — Show quoted text -

    > Hi,

    > I have a 99 RX300, i just had my transmission fixed. The car just stop
    > working – and i have realized that these transmission problems are
    > common in RX300s. But the real problem now is that right after i picked
    > it up from the shop, the check engine lights came on, also the trac off
    > lights come on after few miles – since it was saturday the aamco shop
    > where i had my transmission fixed was closed and i was travelling. when
    > i took it to the aamco shop near my house they said it was some oxygen
    > sensor code. I never had the check engine lights come on at all before.
    > My question is how could fixing the transmission lead to check engine
    > lights on?

    > I tried to reset it by unplugging the battery, but after i plugged it
    > back in, the lights came on after few miles.

    > Please help me with whatever you can!!!

    It is possible that a connection between the transmission and electronic
    control unit is loose, and that would cause a check engine light to
    illuminate.

    If Aamco shop checked the codes in the computer and an oxygen sensor
    malfunction is indicated, then it is probably a coincidence that the sensor
    failed so soon after the transmission repair.

    You can clear the code with an OBD II scan tool that you can borrow at some
    parts stores or you can clear the code by leaving the battery disconnected
    for at least a couple of minutes.  If the computer still detects a fault in
    the system, then the check engine light will keep coming on until the fault
    is fixed.

    Ray O
    correct the return address punctuation to reply

    Comment by admin — December 31, 2009 @ 5:01 pm

  2. - Hide quoted text — Show quoted text -

    Ray O wrote:
    > "Bhavik Shah" <bhav…@gmail.com> wrote in message
    > news:1108661968.365710.102410@o13g2000cwo.googlegroups.com…
    > > Hi,

    > > I have a 99 RX300, i just had my transmission fixed. The car just
    stop
    > > working – and i have realized that these transmission problems are
    > > common in RX300s. But the real problem now is that right after i
    picked
    > > it up from the shop, the check engine lights came on, also the trac
    off
    > > lights come on after few miles – since it was saturday the aamco
    shop
    > > where i had my transmission fixed was closed and i was travelling.
    when
    > > i took it to the aamco shop near my house they said it was some
    oxygen
    > > sensor code. I never had the check engine lights come on at all
    before.
    > > My question is how could fixing the transmission lead to check
    engine
    > > lights on?

    > > I tried to reset it by unplugging the battery, but after i plugged
    it
    > > back in, the lights came on after few miles.

    > > Please help me with whatever you can!!!

    > It is possible that a connection between the transmission and
    electronic
    > control unit is loose, and that would cause a check engine light to
    > illuminate.

    > If Aamco shop checked the codes in the computer and an oxygen sensor
    > malfunction is indicated, then it is probably a coincidence that the
    sensor
    > failed so soon after the transmission repair.

    > You can clear the code with an OBD II scan tool that you can borrow
    at some
    > parts stores or you can clear the code by leaving the battery
    disconnected
    > for at least a couple of minutes.  If the computer still detects a
    fault in
    > the system, then the check engine light will keep coming on until the
    fault
    > is fixed.
    > —
    > Ray O
    > correct the return address punctuation to reply

    Comment by admin — December 31, 2009 @ 5:01 pm

  3. ok sometimes removal of exhaust is required to remove or replace a
    transmission the O2 sensor can be found on the exhaust system and most
    vehicles have anywhere from 1-4 O2 sensors on them if any are unplugged or
    wires not properly routed could be against exhaust and melted or shorted.
    the fix most the time is looking at exhaust system and locate O2 sensors
    make sure all are plugged in and do not look broken.broken O2 sensors are
    common in transmission repair facilities since most exhaust sytems are
    routed either beside or under the transmission itself.aamco is national
    company although independantly owned the warranty on work is good at any
    aamco.have them rack the car up and check the oxygen sensors are plugged in
    and not shorted against the exhaust… if you dont get satisfaction there is
    an 800 number to corporate aamco HQ customer relations .call them and set a
    complaint rolling aamco corporate will see to it that your problem is
    resolved<number can be found on your aamco repair order or warranty booklet>
    hope that helps you some. K Mcreynolds Aamco certified master rebuilder
    A.S.E. certified transmisssion tech
    "Jer" <Jerry11.Durret…@gmail.com> wrote in message

    news:1109108178.075267.102400@o13g2000cwo.googlegroups.com…

    - Hide quoted text — Show quoted text -

    > Ray O wrote:
    > > "Bhavik Shah" <bhav…@gmail.com> wrote in message
    > > news:1108661968.365710.102410@o13g2000cwo.googlegroups.com…
    > > > Hi,

    > > > I have a 99 RX300, i just had my transmission fixed. The car just
    > stop
    > > > working – and i have realized that these transmission problems are
    > > > common in RX300s. But the real problem now is that right after i
    > picked
    > > > it up from the shop, the check engine lights came on, also the trac
    > off
    > > > lights come on after few miles – since it was saturday the aamco
    > shop
    > > > where i had my transmission fixed was closed and i was travelling.
    > when
    > > > i took it to the aamco shop near my house they said it was some
    > oxygen
    > > > sensor code. I never had the check engine lights come on at all
    > before.
    > > > My question is how could fixing the transmission lead to check
    > engine
    > > > lights on?

    > > > I tried to reset it by unplugging the battery, but after i plugged
    > it
    > > > back in, the lights came on after few miles.

    > > > Please help me with whatever you can!!!

    > > It is possible that a connection between the transmission and
    > electronic
    > > control unit is loose, and that would cause a check engine light to
    > > illuminate.

    > > If Aamco shop checked the codes in the computer and an oxygen sensor
    > > malfunction is indicated, then it is probably a coincidence that the
    > sensor
    > > failed so soon after the transmission repair.

    > > You can clear the code with an OBD II scan tool that you can borrow
    > at some
    > > parts stores or you can clear the code by leaving the battery
    > disconnected
    > > for at least a couple of minutes.  If the computer still detects a
    > fault in
    > > the system, then the check engine light will keep coming on until the
    > fault
    > > is fixed.
    > > —
    > > Ray O
    > > correct the return address punctuation to reply

    Comment by admin — December 31, 2009 @ 5:01 pm

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