code 37

Discussion in 'General Motoring' started by jd, Aug 11, 2003.

  1. jd

    jd Guest

    I have a 90 plymouth acclaim--2.5L--3 speed automatic--non turbo. It
    showed a code 37. I guess that is the PTU solenoid. Some info showed
    the PTU solenoid to be on the passenger side fender-well, there are a
    couple of solenoids on that side, they have an electrical connector
    and vacuum lines. I was told the pTU solenoid has no vacuum lines, so
    now I'm confused. Where is the PTU solenoid? I don't think my
    converter is locking-up. thanks
     
    jd, Aug 11, 2003
    #1
  2. jd

    Neil Nelson Guest

    If it had one, the PTU solenoid would be in the transmission.

    Not all FWD 3 speed transaxles had a PTU solenoid, but the
    SMECs used had the programming regardless of whether the
    vehicle was so equiped or not, so it is very possible that
    your code 37 is a false code. Also, there was a TSB issued
    back around 1990 for disabling the PTU circuitry to improve
    driveability (amounted to un-plugging the connector from the
    transaxle).

    If there is an electrical connector behind the dipstick hole
    on the transaxle, it is equiped with a PTU solenoid.
     
    Neil Nelson, Aug 11, 2003
    #2
  3. jd

    jd Guest

    Thanks for the info Neil & Daniel. It does have a connector by the
    transaxle dip-stik. I've only driven the vehicle once and I couldn't
    feel the converter lock or unlock, plus the code. My guess is it never
    locks and I wondered what that would do to the transaxle and gas
    mileage. You folks have answered both questions, so I'm not going to
    worry. There are no driveability issues. thanks
     
    jd, Aug 12, 2003
    #3
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