SES light just came on
#1
10-23-2012, 05:41 PM
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#2
10-24-2012, 08:39 AM
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A quick update - I did some research on the P0741 code and it seems to be related to the transmission?
I had the transmission serviced (fluid/filter replaced) about 1,000 miles ago & the transmission is running perfectly....no hard shifting, revving, slipping, stalling when downshifting, etc.
Any suggestions as to what this might be?
Thanks.
I had the transmission serviced (fluid/filter replaced) about 1,000 miles ago & the transmission is running perfectly....no hard shifting, revving, slipping, stalling when downshifting, etc.
Any suggestions as to what this might be?
Thanks.
#3
10-24-2012, 08:52 AM
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#4
10-24-2012, 09:02 AM
Super Moderator
P0741 * Torque converter lock-up clutch fault
I'd be inclined to take it back to the tranny service shop and have them resolve it on their nickle. Type of fluid used, quantity replaced, filter O ring, these things could make quite a difference.
From shop manual:
Torque converter lock-up
The EAT ECU energises the lock-up solenoid valve to engage the lock-up clutch. Lock-up clutch operation is dependent on throttle position, engine speed, operating mode and the range selected on the transfer box.
The EAT ECU energises the lock-up solenoid valve to engage the lock-up clutch. Lock-up clutch operation is dependent on throttle position, engine speed, operating mode and the range selected on the transfer box.
and - it is not possible to check torque converter lockup while the vehicle is stationary,
Attached are pages from the RAVE shop manual. Average DIY for tranny filter replace, replace O-rings, don't re-use old ones, don't tear or twist them. If you are more determined, or if the tranny shop needs it, there are also pages attached to get to the lockup solenoid. May just be they need to unplug and replug the electrical cable connection to tranny. Also note that you must fill tranny until fluid runs out.
1590 is part of the 3 Amigos. Separate problem.
#5
10-24-2012, 09:13 AM
#6
10-24-2012, 09:23 AM
Administrator
#7
10-24-2012, 09:24 AM
What is the service history of the transmission??
Fluid ever been changed??
Changing fluid may not help a torque convertor lockup condition - but then it may.
If the frictional components of the fluid in your transmission are way off, then the torque convertor lockup clutch was not designed for that.
If you put in clean fluid and Lukas Stop slip as Mike recommends, then
you may get lucky with the torque lock problem.
You may also want to trace the wiring and make sure any electrical
connections to the transmission are free of dirt or salt.
The act of engaging the torque clutch is probably a few amps at 12 volts.
make sure the FUSE for this current is in good condition and is seated in the fuse block well.
Fluid ever been changed??
Changing fluid may not help a torque convertor lockup condition - but then it may.
If the frictional components of the fluid in your transmission are way off, then the torque convertor lockup clutch was not designed for that.
If you put in clean fluid and Lukas Stop slip as Mike recommends, then
you may get lucky with the torque lock problem.
You may also want to trace the wiring and make sure any electrical
connections to the transmission are free of dirt or salt.
The act of engaging the torque clutch is probably a few amps at 12 volts.
make sure the FUSE for this current is in good condition and is seated in the fuse block well.
#8
10-24-2012, 09:45 AM
Super Moderator
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