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Discuss Assistance on "check Engine" codes P0725 & P0700 in the rec.autos.makers.chrysler forum at Car Dealer Forums; I had some problems on my 98 Ply. Breeze, 63K Miles, 2.0L 4 cyl, auto, ...
  1. #1
    Ralph Shapiro
    Guest

    Default Assistance on "check Engine" codes P0725 & P0700

    I had some problems on my 98 Ply. Breeze, 63K Miles, 2.0L 4 cyl, auto, this
    weekend.
    This is the second time this has happened.
    Decel coming off the freeway, feels like a misfire, or problem W/trans
    hanging in higher gear, then downshifting. Check engine light comes on and
    car goes into limp mode.
    Turn off the car for a while, check engine still on, but now running fine.
    Went to Auto Zone and borrowed their code reader (thanks Auto Zone!) and got
    1 P0725 - engine speed sensor and 2 P0700 ( forget the exact description)
    something like transmission controller.
    I'd like to fix myself but need some assistance.
    Is there actually an "engine speed sensor" that can be replaced? Where might
    it be?
    Anybody else experience this problem? What did you do to fix?
    Any and all topic related posts greatly appreciated!

    --

    Ralph Shapiro
    Rohnert Park, CA 94928





    › See More: Assistance on "check Engine" codes P0725 & P0700

  2. #2
    Bill Putney
    Guest

    Default Re: Assistance on "check Engine" codes P0725 & P0700

    Ralph Shapiro wrote:

    > I had some problems on my 98 Ply. Breeze, 63K Miles, 2.0L 4 cyl, auto, this
    > weekend.
    > This is the second time this has happened.
    > Decel coming off the freeway, feels like a misfire, or problem W/trans
    > hanging in higher gear, then downshifting. Check engine light comes on and
    > car goes into limp mode.
    > Turn off the car for a while, check engine still on, but now running fine.
    > Went to Auto Zone and borrowed their code reader (thanks Auto Zone!) and got
    > 1 P0725 - engine speed sensor and 2 P0700 ( forget the exact description)
    > something like transmission controller.
    > I'd like to fix myself but need some assistance.
    > Is there actually an "engine speed sensor" that can be replaced? Where might
    > it be?
    > Anybody else experience this problem? What did you do to fix?
    > Any and all topic related posts greatly appreciated!


    You likely have a bad transmission input speed sensor - that would be
    consistent with the codes and symptoms. A $15-30 part depending on
    where you get it, and you can replace it yourself (put car up on
    jackstands, crawl under car - screw old sensor out, new sensor in using
    a 1" wrench - open end or socket - either may work, one may give better
    accessibility than the other).

    Bill Putney
    (To reply by e-mail, replace the last letter of the alphabet in my
    address with the letter 'x')

  3. #3
    Ralph Shapiro
    Guest

    Default Re: Assistance on "check Engine" codes P0725 & P0700

    Thanks, Bill. I'll give it a shot.
    "Bill Putney" <bptn@kinez.net> wrote in message
    news:4kvqjdFe2cq9U2@individual.net...
    > Ralph Shapiro wrote:
    >
    >> I had some problems on my 98 Ply. Breeze, 63K Miles, 2.0L 4 cyl, auto,
    >> this weekend.
    >> This is the second time this has happened.
    >> Decel coming off the freeway, feels like a misfire, or problem W/trans
    >> hanging in higher gear, then downshifting. Check engine light comes on
    >> and car goes into limp mode.
    >> Turn off the car for a while, check engine still on, but now running
    >> fine.
    >> Went to Auto Zone and borrowed their code reader (thanks Auto Zone!) and
    >> got 1 P0725 - engine speed sensor and 2 P0700 ( forget the exact
    >> description) something like transmission controller.
    >> I'd like to fix myself but need some assistance.
    >> Is there actually an "engine speed sensor" that can be replaced? Where
    >> might it be?
    >> Anybody else experience this problem? What did you do to fix?
    >> Any and all topic related posts greatly appreciated!

    >
    > You likely have a bad transmission input speed sensor - that would be
    > consistent with the codes and symptoms. A $15-30 part depending on where
    > you get it, and you can replace it yourself (put car up on jackstands,
    > crawl under car - screw old sensor out, new sensor in using a 1" wrench -
    > open end or socket - either may work, one may give better accessibility
    > than the other).
    >
    > Bill Putney
    > (To reply by e-mail, replace the last letter of the alphabet in my address
    > with the letter 'x')




  4. #4
    maxpower
    Guest

    Default Re: Assistance on "check Engine" codes P0725 & P0700


    "Ralph Shapiro" <ralph.shapiro@sonoma.edu> wrote in message
    news:BqEGg.564$N4.42919@okeanos.csu.net...
    > Thanks, Bill. I'll give it a shot.
    > "Bill Putney" <bptn@kinez.net> wrote in message
    > news:4kvqjdFe2cq9U2@individual.net...
    > > Ralph Shapiro wrote:
    > >
    > >> I had some problems on my 98 Ply. Breeze, 63K Miles, 2.0L 4 cyl, auto,
    > >> this weekend.
    > >> This is the second time this has happened.
    > >> Decel coming off the freeway, feels like a misfire, or problem W/trans
    > >> hanging in higher gear, then downshifting. Check engine light comes on
    > >> and car goes into limp mode.
    > >> Turn off the car for a while, check engine still on, but now running
    > >> fine.
    > >> Went to Auto Zone and borrowed their code reader (thanks Auto Zone!)

    and
    > >> got 1 P0725 - engine speed sensor and 2 P0700 ( forget the exact
    > >> description) something like transmission controller.
    > >> I'd like to fix myself but need some assistance.
    > >> Is there actually an "engine speed sensor" that can be replaced? Where
    > >> might it be?
    > >> Anybody else experience this problem? What did you do to fix?
    > >> Any and all topic related posts greatly appreciated!

    > >
    > > You likely have a bad transmission input speed sensor - that would be
    > > consistent with the codes and symptoms. A $15-30 part depending on

    where
    > > you get it, and you can replace it yourself (put car up on jackstands,
    > > crawl under car - screw old sensor out, new sensor in using a 1"

    wrench -
    > > open end or socket - either may work, one may give better accessibility
    > > than the other).
    > >
    > > Bill Putney
    > > (To reply by e-mail, replace the last letter of the alphabet in my

    address
    > > with the letter 'x')

    >
    >

    More then likely as Bill said the input speed sensor. If you are going to
    replace the input sensor you may as well get the output sensor also. They
    are right next to each other and easy to get at.

    Glenn Beasley
    Chrysler Tech



  5. #5
    Ralph Shapiro
    Guest

    Default Re: Assistance on "check Engine" codes P0725 & P0700

    Thanks, guys. Haven't spent any $$$ for the whole ownership of the car.
    Guess its time to throw some to the auto gods.
    "maxpower" <damnnickname@yahoo.com> wrote in message
    news:4eqdnaWZw8D803bZnZ2dnUVZ_tSdnZ2d@comcast.com. ..
    >
    > "Ralph Shapiro" <ralph.shapiro@sonoma.edu> wrote in message
    > news:BqEGg.564$N4.42919@okeanos.csu.net...
    >> Thanks, Bill. I'll give it a shot.
    >> "Bill Putney" <bptn@kinez.net> wrote in message
    >> news:4kvqjdFe2cq9U2@individual.net...
    >> > Ralph Shapiro wrote:
    >> >
    >> >> I had some problems on my 98 Ply. Breeze, 63K Miles, 2.0L 4 cyl,
    >> >> auto,
    >> >> this weekend.
    >> >> This is the second time this has happened.
    >> >> Decel coming off the freeway, feels like a misfire, or problem W/trans
    >> >> hanging in higher gear, then downshifting. Check engine light comes on
    >> >> and car goes into limp mode.
    >> >> Turn off the car for a while, check engine still on, but now running
    >> >> fine.
    >> >> Went to Auto Zone and borrowed their code reader (thanks Auto Zone!)

    > and
    >> >> got 1 P0725 - engine speed sensor and 2 P0700 ( forget the exact
    >> >> description) something like transmission controller.
    >> >> I'd like to fix myself but need some assistance.
    >> >> Is there actually an "engine speed sensor" that can be replaced? Where
    >> >> might it be?
    >> >> Anybody else experience this problem? What did you do to fix?
    >> >> Any and all topic related posts greatly appreciated!
    >> >
    >> > You likely have a bad transmission input speed sensor - that would be
    >> > consistent with the codes and symptoms. A $15-30 part depending on

    > where
    >> > you get it, and you can replace it yourself (put car up on jackstands,
    >> > crawl under car - screw old sensor out, new sensor in using a 1"

    > wrench -
    >> > open end or socket - either may work, one may give better accessibility
    >> > than the other).
    >> >
    >> > Bill Putney
    >> > (To reply by e-mail, replace the last letter of the alphabet in my

    > address
    >> > with the letter 'x')

    >>
    >>

    > More then likely as Bill said the input speed sensor. If you are going to
    > replace the input sensor you may as well get the output sensor also. They
    > are right next to each other and easy to get at.
    >
    > Glenn Beasley
    > Chrysler Tech
    >
    >




  6. #6
    Ralph Shapiro
    Guest

    Default Re: Assistance on "check Engine" codes P0725 & P0700

    Well, I've replaced both input and output trans. sensors, to no avail.
    Problem still exists.
    After searching the internet, I've also cleaned all grounds under the hood.
    I checked the connector to the cam sensor ( at back of head), and found it
    full of oil from a blown head gasket, so I cleaned that out.
    Pulled the connector at the trans, it had trans fluid in it, cleaned that.
    Took to a shop ( non dealer) for a diagnostic, they said may be crank
    position sensor or TCM, but could not say for sure which was bad, or even if
    this would fix.
    Additional research said P0700 indicates that the TCM has to be queried for
    more specific codes. Is this true, can the TCM have codes that can be read?
    So, my additional question, could the TCM be bad? Any service bulletins on
    TCM problems? Reflash the TCM ? Can codes be read from it that will indicate
    more info on the problem?
    Should I have an 'accident' to get rid of this car?

    I also had the trans fluid changed in 3/05 at a non dealer. No description
    of ATF+4 being used on the flush, but additive used. Did I shoot myself in
    the foot on this? Getting the fluid changed again today.

    "Ralph Shapiro" <ralph.shapiro@sonoma.edu> wrote in message
    news:lpZGg.565$N4.40731@okeanos.csu.net...
    > Thanks, guys. Haven't spent any $$$ for the whole ownership of the car.
    > Guess its time to throw some to the auto gods.
    > "maxpower" <damnnickname@yahoo.com> wrote in message
    > news:4eqdnaWZw8D803bZnZ2dnUVZ_tSdnZ2d@comcast.com. ..
    >>
    >> "Ralph Shapiro" <ralph.shapiro@sonoma.edu> wrote in message
    >> news:BqEGg.564$N4.42919@okeanos.csu.net...
    >>> Thanks, Bill. I'll give it a shot.
    >>> "Bill Putney" <bptn@kinez.net> wrote in message
    >>> news:4kvqjdFe2cq9U2@individual.net...
    >>> > Ralph Shapiro wrote:
    >>> >
    >>> >> I had some problems on my 98 Ply. Breeze, 63K Miles, 2.0L 4 cyl,
    >>> >> auto,
    >>> >> this weekend.
    >>> >> This is the second time this has happened.
    >>> >> Decel coming off the freeway, feels like a misfire, or problem
    >>> >> W/trans
    >>> >> hanging in higher gear, then downshifting. Check engine light comes
    >>> >> on
    >>> >> and car goes into limp mode.
    >>> >> Turn off the car for a while, check engine still on, but now running
    >>> >> fine.
    >>> >> Went to Auto Zone and borrowed their code reader (thanks Auto Zone!)

    >> and
    >>> >> got 1 P0725 - engine speed sensor and 2 P0700 ( forget the exact
    >>> >> description) something like transmission controller.
    >>> >> I'd like to fix myself but need some assistance.
    >>> >> Is there actually an "engine speed sensor" that can be replaced?
    >>> >> Where
    >>> >> might it be?
    >>> >> Anybody else experience this problem? What did you do to fix?
    >>> >> Any and all topic related posts greatly appreciated!
    >>> >
    >>> > You likely have a bad transmission input speed sensor - that would be
    >>> > consistent with the codes and symptoms. A $15-30 part depending on

    >> where
    >>> > you get it, and you can replace it yourself (put car up on jackstands,
    >>> > crawl under car - screw old sensor out, new sensor in using a 1"

    >> wrench -
    >>> > open end or socket - either may work, one may give better
    >>> > accessibility
    >>> > than the other).
    >>> >
    >>> > Bill Putney
    >>> > (To reply by e-mail, replace the last letter of the alphabet in my

    >> address
    >>> > with the letter 'x')
    >>>
    >>>

    >> More then likely as Bill said the input speed sensor. If you are going to
    >> replace the input sensor you may as well get the output sensor also. They
    >> are right next to each other and easy to get at.
    >>
    >> Glenn Beasley
    >> Chrysler Tech
    >>
    >>

    >
    >




  7. #7
    Bill Putney
    Guest

    Default Re: Assistance on "check Engine" codes P0725 & P0700

    Ralph Shapiro wrote:
    > ...I also had the trans fluid changed in 3/05 at a non dealer. No description
    > of ATF+4 being used on the flush, but additive used. Did I shoot myself in
    > the foot on this? Getting the fluid changed again today.


    If they used an additive, there's a 99.9999% chance that they did not
    use ATF+4. Most likely Dexron plus an additive. Can't say for sure if
    it's your problem, but it's not good.

    Bill Putney
    (To reply by e-mail, replace the last letter of the alphabet in my
    address with the letter 'x')

  8. #8
    philthy
    Guest

    Default Re: Assistance on "check Engine" codes P0725 & P0700

    did you disconnect the battery to erase the codes???
    the computer will still be in limpin mode if you did not

    Ralph Shapiro wrote:

    > Well, I've replaced both input and output trans. sensors, to no avail.
    > Problem still exists.
    > After searching the internet, I've also cleaned all grounds under the hood.
    > I checked the connector to the cam sensor ( at back of head), and found it
    > full of oil from a blown head gasket, so I cleaned that out.
    > Pulled the connector at the trans, it had trans fluid in it, cleaned that.
    > Took to a shop ( non dealer) for a diagnostic, they said may be crank
    > position sensor or TCM, but could not say for sure which was bad, or even if
    > this would fix.
    > Additional research said P0700 indicates that the TCM has to be queried for
    > more specific codes. Is this true, can the TCM have codes that can be read?
    > So, my additional question, could the TCM be bad? Any service bulletins on
    > TCM problems? Reflash the TCM ? Can codes be read from it that will indicate
    > more info on the problem?
    > Should I have an 'accident' to get rid of this car?
    >
    > I also had the trans fluid changed in 3/05 at a non dealer. No description
    > of ATF+4 being used on the flush, but additive used. Did I shoot myself in
    > the foot on this? Getting the fluid changed again today.
    >
    > "Ralph Shapiro" <ralph.shapiro@sonoma.edu> wrote in message
    > news:lpZGg.565$N4.40731@okeanos.csu.net...
    > > Thanks, guys. Haven't spent any $$$ for the whole ownership of the car.
    > > Guess its time to throw some to the auto gods.
    > > "maxpower" <damnnickname@yahoo.com> wrote in message
    > > news:4eqdnaWZw8D803bZnZ2dnUVZ_tSdnZ2d@comcast.com. ..
    > >>
    > >> "Ralph Shapiro" <ralph.shapiro@sonoma.edu> wrote in message
    > >> news:BqEGg.564$N4.42919@okeanos.csu.net...
    > >>> Thanks, Bill. I'll give it a shot.
    > >>> "Bill Putney" <bptn@kinez.net> wrote in message
    > >>> news:4kvqjdFe2cq9U2@individual.net...
    > >>> > Ralph Shapiro wrote:
    > >>> >
    > >>> >> I had some problems on my 98 Ply. Breeze, 63K Miles, 2.0L 4 cyl,
    > >>> >> auto,
    > >>> >> this weekend.
    > >>> >> This is the second time this has happened.
    > >>> >> Decel coming off the freeway, feels like a misfire, or problem
    > >>> >> W/trans
    > >>> >> hanging in higher gear, then downshifting. Check engine light comes
    > >>> >> on
    > >>> >> and car goes into limp mode.
    > >>> >> Turn off the car for a while, check engine still on, but now running
    > >>> >> fine.
    > >>> >> Went to Auto Zone and borrowed their code reader (thanks Auto Zone!)
    > >> and
    > >>> >> got 1 P0725 - engine speed sensor and 2 P0700 ( forget the exact
    > >>> >> description) something like transmission controller.
    > >>> >> I'd like to fix myself but need some assistance.
    > >>> >> Is there actually an "engine speed sensor" that can be replaced?
    > >>> >> Where
    > >>> >> might it be?
    > >>> >> Anybody else experience this problem? What did you do to fix?
    > >>> >> Any and all topic related posts greatly appreciated!
    > >>> >
    > >>> > You likely have a bad transmission input speed sensor - that would be
    > >>> > consistent with the codes and symptoms. A $15-30 part depending on
    > >> where
    > >>> > you get it, and you can replace it yourself (put car up on jackstands,
    > >>> > crawl under car - screw old sensor out, new sensor in using a 1"
    > >> wrench -
    > >>> > open end or socket - either may work, one may give better
    > >>> > accessibility
    > >>> > than the other).
    > >>> >
    > >>> > Bill Putney
    > >>> > (To reply by e-mail, replace the last letter of the alphabet in my
    > >> address
    > >>> > with the letter 'x')
    > >>>
    > >>>
    > >> More then likely as Bill said the input speed sensor. If you are going to
    > >> replace the input sensor you may as well get the output sensor also. They
    > >> are right next to each other and easy to get at.
    > >>
    > >> Glenn Beasley
    > >> Chrysler Tech
    > >>
    > >>

    > >
    > >



  9. #9
    duty-honor-country
    Guest

    Default Re: Assistance on "check Engine" codes P0725 & P0700


    Ralph Shapiro wrote:
    > I had some problems on my 98 Ply. Breeze, 63K Miles, 2.0L 4 cyl, auto, this
    > weekend.
    > This is the second time this has happened.
    > Decel coming off the freeway, feels like a misfire, or problem W/trans
    > hanging in higher gear, then downshifting. Check engine light comes on and
    > car goes into limp mode.
    > Turn off the car for a while, check engine still on, but now running fine.
    > Went to Auto Zone and borrowed their code reader (thanks Auto Zone!) and got
    > 1 P0725 - engine speed sensor and 2 P0700 ( forget the exact description)
    > something like transmission controller.
    > I'd like to fix myself but need some assistance.
    > Is there actually an "engine speed sensor" that can be replaced? Where might
    > it be?
    > Anybody else experience this problem? What did you do to fix?
    > Any and all topic related posts greatly appreciated!
    >
    > --
    >
    > Ralph Shapiro
    > Rohnert Park, CA 94928


    Don't try to diagnose a modern computer controlled car yourself. You
    may get lucky and find the problem, once in a while, but very rarely.
    The machine used to diagnose these new cars quickly and effectively
    costs $40,000 I have a close friend I went to high school with, that
    has one and is in the repair business. If you saw that machine work
    and knew how complicated the engines controls really are, you would not
    even bother trying to fix that car. Your problems with the car can be
    a multitude of things.

    The basic diagnosis procedure should always include fuel
    pressure/volume, exhaust backpressure, and scan all the sensors. Then
    the ignition and plugs and timing. Then the computer and proms are
    checked. If the problem still is not found, then it may be an
    electrical connection in the harnesses somewhere. Very rarely is it an
    engine mechanical problem.


  10. #10
    bicycle, The Fifth Wheel King
    Guest

    Default Re: Assistance on "check Engine" codes P0725 & P0700


    duty-honor-country aka Limp Dick Charlie Nudo wrote:
    > Ralph Shapiro wrote:
    > > I had some problems on my 98 Ply. Breeze, 63K Miles, 2.0L 4 cyl, auto, this
    > > weekend.
    > > This is the second time this has happened.
    > > Decel coming off the freeway, feels like a misfire, or problem W/trans
    > > hanging in higher gear, then downshifting. Check engine light comes on and
    > > car goes into limp mode.
    > > Turn off the car for a while, check engine still on, but now running fine.
    > > Went to Auto Zone and borrowed their code reader (thanks Auto Zone!) and got
    > > 1 P0725 - engine speed sensor and 2 P0700 ( forget the exact description)
    > > something like transmission controller.
    > > I'd like to fix myself but need some assistance.
    > > Is there actually an "engine speed sensor" that can be replaced? Where might
    > > it be?
    > > Anybody else experience this problem? What did you do to fix?
    > > Any and all topic related posts greatly appreciated!
    > >
    > > --
    > >
    > > Ralph Shapiro
    > > Rohnert Park, CA 94928

    >
    > Don't try to diagnose a modern computer controlled car yourself. You
    > may get lucky and find the problem, once in a while, but very rarely.
    > The machine used to diagnose these new cars quickly and effectively
    > costs $40,000 I have a close friend I went to high school with, that
    > has one and is in the repair business. If you saw that machine work


    Your story sounded legit until you got to the part about having a close
    friend, that's when people realized it was total bullshit.


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