Code 37 help for 1993 b350
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Amateur
Joined: Jul 2010
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From: Franklin, IN
Code 37 help for 1993 b350
http://www.allpar.com/fix/80s-codes.html
http://www.allpar.com/fix/codes/faults/code-37.html
So does anyone have any experience with this?????
http://www.allpar.com/fix/codes/faults/code-37.html
So does anyone have any experience with this?????
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Joined: Aug 2007
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The PTU relay on my '89 is the top most relay. closest to the passenger side.
It is missing on mine. I get no codes. Find it and unhook it, see what happens.
I believe it is designed to unlock the Lock up torque converter when you take your foot completely off the gas at highway speeds.
It is missing on mine. I get no codes. Find it and unhook it, see what happens.
I believe it is designed to unlock the Lock up torque converter when you take your foot completely off the gas at highway speeds.
Thread Starter
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Amateur
Joined: Jul 2010
Posts: 25
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From: Franklin, IN
The PTU relay on my '89 is the top most relay. closest to the passenger side.
It is missing on mine. I get no codes. Find it and unhook it, see what happens.
I believe it is designed to unlock the Lock up torque converter when you take your foot completely off the gas at highway speeds.
It is missing on mine. I get no codes. Find it and unhook it, see what happens.
I believe it is designed to unlock the Lock up torque converter when you take your foot completely off the gas at highway speeds.
Hmmm...what would maybe by some symptoms of this you think?
The band is going on tour again, and this is the only code i get. So id like to get it figured out before we leave!
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Amateur
Joined: Jul 2010
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From: Franklin, IN
also, if you look on this page at code 37 it doesnt even fit the year of our vehicle.... so i dunno...
http://www.allpar.com/fix/80s-codes.html
http://www.allpar.com/fix/80s-codes.html
Record Breaker
Joined: Aug 2007
Posts: 1,146
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First let me say I am no tranny expert.
?IF? the PTU relay is designed to unlock the torque converter at highway speed when there is no throttle applied, and for whatever reason it is not working, It ?MIGHT? be possible that your torque converter is staying locked up, or locking up in each gear as it downshifts.
I could see this, if possible, and occuring, stalling the engine as one slows down.
Go on the highway at 65 mph take your foot off the gas, and see if you can feel the TC unlock. Then put your foot back on it and see if it locks up again. Mine is pretty subtle on th unlock, but the lock up is less so.
Try it again with the relay removed, and see what happens. Unplug the battery to reset the Ecm and see of the code 37 is reset, or absent afterward.
But also follow the wires that lead down to the transmission, inspect them closely, remove the connections at the tranny, and inspect those.
?IF? the PTU relay is designed to unlock the torque converter at highway speed when there is no throttle applied, and for whatever reason it is not working, It ?MIGHT? be possible that your torque converter is staying locked up, or locking up in each gear as it downshifts.
I could see this, if possible, and occuring, stalling the engine as one slows down.
Go on the highway at 65 mph take your foot off the gas, and see if you can feel the TC unlock. Then put your foot back on it and see if it locks up again. Mine is pretty subtle on th unlock, but the lock up is less so.
Try it again with the relay removed, and see what happens. Unplug the battery to reset the Ecm and see of the code 37 is reset, or absent afterward.
But also follow the wires that lead down to the transmission, inspect them closely, remove the connections at the tranny, and inspect those.
Thread Starter
|
Amateur
Joined: Jul 2010
Posts: 25
Likes: 0
From: Franklin, IN
First let me say I am no tranny expert.
?IF? the PTU relay is designed to unlock the torque converter at highway speed when there is no throttle applied, and for whatever reason it is not working, It ?MIGHT? be possible that your torque converter is staying locked up, or locking up in each gear as it downshifts.
I could see this, if possible, and occuring, stalling the engine as one slows down.
Go on the highway at 65 mph take your foot off the gas, and see if you can feel the TC unlock. Then put your foot back on it and see if it locks up again. Mine is pretty subtle on th unlock, but the lock up is less so.
Try it again with the relay removed, and see what happens. Unplug the battery to reset the Ecm and see of the code 37 is reset, or absent afterward.
But also follow the wires that lead down to the transmission, inspect them closely, remove the connections at the tranny, and inspect those.
?IF? the PTU relay is designed to unlock the torque converter at highway speed when there is no throttle applied, and for whatever reason it is not working, It ?MIGHT? be possible that your torque converter is staying locked up, or locking up in each gear as it downshifts.
I could see this, if possible, and occuring, stalling the engine as one slows down.
Go on the highway at 65 mph take your foot off the gas, and see if you can feel the TC unlock. Then put your foot back on it and see if it locks up again. Mine is pretty subtle on th unlock, but the lock up is less so.
Try it again with the relay removed, and see what happens. Unplug the battery to reset the Ecm and see of the code 37 is reset, or absent afterward.
But also follow the wires that lead down to the transmission, inspect them closely, remove the connections at the tranny, and inspect those.
ya i think first im going to unplug and clean some of the wires going into the tranny first, take it for a spin, and un hook the battery and check the code again.