Attention: TDR Forum Junkies Here are some operating guidelines that I hope will help people with the understanding of how these work & their limitations.
The difference between the AutoLoc and the TorqLoc is that the Torqloc will force the converter clutch to lock up & the Autoloc will only hold, an already locked up converter clutch. When you ask for an overdrive to third gear shift, the Torqloc doesn’t wait for the computer to lock up the clutch, it sends its own signal to the converter clutch, and as long as you are A) above the set speed and B) the transmission is hydraulically correct [ throttle pressure is applied] , the TorqLoc will force a lock up.
The AutoLoc cannot force a lock up only hold one on deceleration. The Chrysler transmission does not lock up in third gear, unless the overdrive is turned off. Also the Chrysler transmission won’t allow an overdrive to third gear downshift if the torque converter clutch is locked up. This holds true not matter what system you are using to hold the converter clutch locked up.
While driving with the overdrive turned off, and the AutoLoc is turned on, the transmission shifts from first to second to third, and then locks up. Anytime after the lock up has occurred and you take your foot off the accelerator, the AutoLoc will turn the exhaust brake on and hold the torque converter clutch locked until about 25mph when it will then turn off the torque converter clutch. When driving on the freeway in overdrive, the torque converter clutch will be locked up and the AutoLoc turned on, if you release the throttle the AutoLoc will apply the brake and hold the torque converter clutch locked up. To increase the amount of retarding horsepower, turn off the overdrive and the AutoLoc will sense this signal and cut the signal that’s holding the torque converter clutch applied, the transmission will then downshift into third gear. At this point you should apply throttle pressure until the factory computer says everything is okay and locks up the torque converter clutch. As soon as that happens you should remove throttle pressure and the AutoLoc will turn the exhaust brake on and keep the torque converter clutch applied until you get down to about the 25mph mark. The set speed is adjustable, one can set it for a higher mph, so you don’t have to worry about remembering to turn off the overdrive or lower if one has 4:10 gears.
Now suppose you’re driving along, overdrive is on, the AutoLoc is on and you need to make a stop or slow down, but don’t need the extra retarding horsepower of third gear or; you don’t have time to wait for the downshift, applying throttle and waiting for lockup, (this would all take about 4-6 seconds) and you don’t want the shuddering that would occur when you have a locked up torque converter clutch & you’re going to be doing less than 35 mph in overdrive. You can do any of the four following actions to cancel out the system: turn off the AutoLoc switch, turn off the overdrive, lightly step on the throttle pedal, or pull the gearshift lever down into second gear. Turning off the overdrive or the AutoLoc are the best of the four options.
Now enters the Torqloc, it should only be used under light throttle applications. No matter whose torque converter you are using, the converter clutch has only so much holding power & if you exceed this you will start to slip the clutch, thereby starting the demise of your converter clutch.
An example of when one would use the Torqloc position would be when one is on a winding road. Where one is on and off the throttle a lot & you don’t want to keep locking & unlocking the converter clutch. The Torqcloc will hold the converter clutch locked up, preventing that from happening. You must keep in mind while doing this that if you apply too much throttle pressure, especially at the lower rpm band you may start to slip the converter clutch. A general rule of thumb when holding the converter clutch locked up is no more that 1 lb of boost for every 100 engine rpm.
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The difference between the AutoLoc and the TorqLoc is that the Torqloc will force the converter clutch to lock up & the Autoloc will only hold, an already locked up converter clutch. When you ask for an overdrive to third gear shift, the Torqloc doesn’t wait for the computer to lock up the clutch, it sends its own signal to the converter clutch, and as long as you are A) above the set speed and B) the transmission is hydraulically correct [ throttle pressure is applied] , the TorqLoc will force a lock up.
The AutoLoc cannot force a lock up only hold one on deceleration. The Chrysler transmission does not lock up in third gear, unless the overdrive is turned off. Also the Chrysler transmission won’t allow an overdrive to third gear downshift if the torque converter clutch is locked up. This holds true not matter what system you are using to hold the converter clutch locked up.
While driving with the overdrive turned off, and the AutoLoc is turned on, the transmission shifts from first to second to third, and then locks up. Anytime after the lock up has occurred and you take your foot off the accelerator, the AutoLoc will turn the exhaust brake on and hold the torque converter clutch locked until about 25mph when it will then turn off the torque converter clutch. When driving on the freeway in overdrive, the torque converter clutch will be locked up and the AutoLoc turned on, if you release the throttle the AutoLoc will apply the brake and hold the torque converter clutch locked up. To increase the amount of retarding horsepower, turn off the overdrive and the AutoLoc will sense this signal and cut the signal that’s holding the torque converter clutch applied, the transmission will then downshift into third gear. At this point you should apply throttle pressure until the factory computer says everything is okay and locks up the torque converter clutch. As soon as that happens you should remove throttle pressure and the AutoLoc will turn the exhaust brake on and keep the torque converter clutch applied until you get down to about the 25mph mark. The set speed is adjustable, one can set it for a higher mph, so you don’t have to worry about remembering to turn off the overdrive or lower if one has 4:10 gears.
Now suppose you’re driving along, overdrive is on, the AutoLoc is on and you need to make a stop or slow down, but don’t need the extra retarding horsepower of third gear or; you don’t have time to wait for the downshift, applying throttle and waiting for lockup, (this would all take about 4-6 seconds) and you don’t want the shuddering that would occur when you have a locked up torque converter clutch & you’re going to be doing less than 35 mph in overdrive. You can do any of the four following actions to cancel out the system: turn off the AutoLoc switch, turn off the overdrive, lightly step on the throttle pedal, or pull the gearshift lever down into second gear. Turning off the overdrive or the AutoLoc are the best of the four options.
Now enters the Torqloc, it should only be used under light throttle applications. No matter whose torque converter you are using, the converter clutch has only so much holding power & if you exceed this you will start to slip the clutch, thereby starting the demise of your converter clutch.
An example of when one would use the Torqloc position would be when one is on a winding road. Where one is on and off the throttle a lot & you don’t want to keep locking & unlocking the converter clutch. The Torqcloc will hold the converter clutch locked up, preventing that from happening. You must keep in mind while doing this that if you apply too much throttle pressure, especially at the lower rpm band you may start to slip the converter clutch. A general rule of thumb when holding the converter clutch locked up is no more that 1 lb of boost for every 100 engine rpm.
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