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Code 37 on 1990 Dodge Spirit with 3 Speed automatic
When I check for codes on my 1990 Dodge Spirit, I am getting a "37."
According to the info on Allpar.com, it could be one of the following: 37 Shift indicator light failure, 5-speed OR part throttle lock/unlock solenoid driver circuit (87-89) OR solenoid coil circuit (85-89 Turbo I-IV) OR Trans temperature sensor voltage low (1995 and on; see NOTE 2) Since it is not a 5 speed, and does not have a turbo, I am guessing it is the second one, although mine is a 1990 and not a 1989. It was however, assembled in September of 1989. Could it have anything to do with the torque converter not locking? Thanks in advance, -Kirk Matheson |
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Code 37 on 1990 Dodge Spirit with 3 Speed automatic
Yep, you've got an open or shorted condition in your torque converter
lockup clutch solenoid circuit. This could be due to a fault, or it could be because a particular TSB has been applied, which calls for the deliberate unplugging of the lockup solenoid to eliminate a road-load surging effect. The only detrimental effect of an unplugged or nonfunctional torque converter lockup clutch is a loss of approximately 7% fuel economy at speeds over 45mph. If getting back that fuel economy is worthwhile to you, plug the torque converter clutch back in or find and fix the problem. The plug is located right next to the transmission fluid dipstick. If you find it plugged in, try unplugging it, cleaning the contacts on both the transmission and the socket, and plugging it back in. Clear the trouble codes by disconnecting the main feed disconnect (located in the positive battery cable about 7" down from the battery) for a few minutes -- this is a good opportunity to check and clean that connection -- and then plugging it back in. |
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Code 37 on 1990 Dodge Spirit with 3 Speed automatic
-- > wrote in message ups.com... > When I check for codes on my 1990 Dodge Spirit, I am getting a "37." > According to the info on Allpar.com, it could be one of the following: > > 37 Shift indicator light failure, 5-speed > OR > part throttle lock/unlock solenoid driver circuit (87-89) > OR > solenoid coil circuit (85-89 Turbo I-IV) > OR > Trans temperature sensor voltage low (1995 and on; see NOTE 2) > > Since it is not a 5 speed, and does not have a turbo, I am guessing it > is the second one, although mine is a 1990 and not a 1989. It was > however, assembled in September of 1989. > > Could it have anything to do with the torque converter not locking? > > Thanks in advance, > > -Kirk Matheson > Before you start looking for open or shorted condition in the lock up torque converter make sure you have a lock up solenoid. not all transmissions have this option. sorta like not having cruise control or a/c. If your vehicle does not have those options and you did the key cycle fault code check you would get faults for cruise control and a/c. Mr Lite bulb Stern could have you running is circles if yours is not equipped. If the vehicle does have it, there is a TSB to jump the connector which will not allow the Trans to lock up, the only purpose of the jumper is to keep the fault code from setting. Glenn Beasley Chrysler Tech |
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Code 37 on 1990 Dodge Spirit with 3 Speed automatic
maxpower wrote: > -- > > > wrote in message > ups.com... > > When I check for codes on my 1990 Dodge Spirit, I am getting a "37." > > According to the info on Allpar.com, it could be one of the following: > > > > 37 Shift indicator light failure, 5-speed > > OR > > part throttle lock/unlock solenoid driver circuit (87-89) > > OR > > solenoid coil circuit (85-89 Turbo I-IV) > > OR > > Trans temperature sensor voltage low (1995 and on; see NOTE 2) > > > > Since it is not a 5 speed, and does not have a turbo, I am guessing it > > is the second one, although mine is a 1990 and not a 1989. It was > > however, assembled in September of 1989. > > > > Could it have anything to do with the torque converter not locking? > > > > Thanks in advance, > > > > -Kirk Matheson > > > > Before you start looking for open or shorted condition in the lock up > torque converter make sure you have a lock up solenoid. not all > transmissions have this option. sorta like not having cruise control or a/c. > If your vehicle does not have those options and you did the key cycle fault > code check you would get faults for cruise control and a/c. Mr Lite bulb > Stern could have you running is circles if yours is not equipped. > If the vehicle does have it, there is a TSB to jump the connector which will > not allow the Trans to lock up, the only purpose of the jumper is to keep > the fault code from setting. > > Glenn Beasley > Chrysler Tech Thank you both for the information. The vehicle did have the lock-up when it was new. It would usually kick in around 60 MPH. Last October, a used transmission was installed to replace the original which was a victim of a botched rebuild job, (not by the same shop). Anyway, the used one works fine except for the code being set. The shop checked the numbers to ensure that it would be compatible. If it has the connector near the dipstick previously described, does it most likely support converter lock-up? Thanks, Kirk Matheson |
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Code 37 on 1990 Dodge Spirit with 3 Speed automatic
-- > wrote in message oups.com... > > maxpower wrote: > > -- > > > > > wrote in message > > ups.com... > > > When I check for codes on my 1990 Dodge Spirit, I am getting a "37." > > > According to the info on Allpar.com, it could be one of the following: > > > > > > 37 Shift indicator light failure, 5-speed > > > OR > > > part throttle lock/unlock solenoid driver circuit (87-89) > > > OR > > > solenoid coil circuit (85-89 Turbo I-IV) > > > OR > > > Trans temperature sensor voltage low (1995 and on; see NOTE 2) > > > > > > Since it is not a 5 speed, and does not have a turbo, I am guessing it > > > is the second one, although mine is a 1990 and not a 1989. It was > > > however, assembled in September of 1989. > > > > > > Could it have anything to do with the torque converter not locking? > > > > > > Thanks in advance, > > > > > > -Kirk Matheson > > > > > > > Before you start looking for open or shorted condition in the lock up > > torque converter make sure you have a lock up solenoid. not all > > transmissions have this option. sorta like not having cruise control or a/c. > > If your vehicle does not have those options and you did the key cycle fault > > code check you would get faults for cruise control and a/c. Mr Lite bulb > > Stern could have you running is circles if yours is not equipped. > > If the vehicle does have it, there is a TSB to jump the connector which will > > not allow the Trans to lock up, the only purpose of the jumper is to keep > > the fault code from setting. > > > > Glenn Beasley > > Chrysler Tech > > Thank you both for the information. The vehicle did have the lock-up > when it was new. It would usually kick in around 60 MPH. Last October, > a used transmission was installed to replace the original which was a > victim of a botched rebuild job, (not by the same shop). > > Anyway, the used one works fine except for the code being set. The shop > checked the numbers to ensure that it would be compatible. > > If it has the connector near the dipstick previously described, does it > most likely support converter lock-up? > > Thanks, > > Kirk Matheson > Yes, if there is a male connector coming out of the trans it has it. Glenn Beasley Chrysler Tech |
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