Re: '02 Lerado
Thanks for the info I have one other ? If the TCC is where the lockup takes
place why do you think they pulled the TM after all replacing the TCC was the first thing that they did. "Jerry Newton" <fig@mcttelecom.com> wrote in message news:3fe73906$1_2@newspeer2.tds.net... > Unplugging the TCC (torgque converter clutch) or otherwise disabling it > won't get past the onboard computer, and the light will come back on if that > is what was done. I don't think that the dealer would have done that. > > Further, it is unwise to disconnect or otherwise disable the TCC. A torque > converter that does not lock up produces an enormous amount of heat, which > will ruin the transmission. Your buddy that did that didn't gain anything > except a broken transmission from the inevitable failure due to overheating. > > Jerry > > > "Joe" <joe837@hello.net> wrote in message > news:bs7b1b$acor3$1@ID-130119.news.uni-berlin.de... > > The first thing they tried was replacing the TC.That did not solve the > > problem.Replacing the computer was the second thing they did and pulling > the > > TM and repairing the leaking seal was last month..I must admit this is the > > most comfortable I've been with a service department in fifty years of > > buying cars.My friend has a older car and the 'lockup"would not release > and > > his buddy at the shop told him to pull the plug so it would release and > > drive until it failed completely because of the vehicles age. > > "John Davies" <johnedavies@comcast.net> wrote in message > > news:hp4euvciq1u55mc5j5m8qcqpemvpnbhuii@4ax.com... > > > On Mon, 22 Dec 2003 05:31:24 -0500, "Joe" <joe837@hello.net> wrote: > > > > > > >Had the engine light come on steady and the dealer scan indicated > > something > > > >to do with a"lock up"function of the transmission that is to enable a > few > > > >extra miles per gallon.They could not find any info about the code the > > scan > > > >was giving them.They would clear the computer and after several weeks > it > > > >would come on again same code.After going back 5 times I finally got a > > file > > > >number and told them to fix it or I would invoke the lemon law. > > > > They took the Jeep and pulled the Trans and said a seal was > > leaking > > > >and repaired it.That was 4 wks ago and the light has not come back on.I > > want > > > >to know if it is possible to disable the"lockup" function so the scan > > would > > > >not pick it up?I'm not sure at this time if a drop in mpg has > > occurred.Thank > > > >you. > > > > > > > Why do you think they would do that nasty trick to disable the torque > > > converter lockup? It would only come back to haunt them. Since they > > > removed the tranny it is very likely that they corrected the problem. > > > A functioning lockup TC is very easy to see on a test drive - the > > > engine rpm will drop as you back off on the throttle. It's a more > > > subtle jolt than the normal shift. With a 4 speed auto it acts as if > > > you have several extra gears. If I recall correctly, in the XJ tranny > > > the TC will lock in the three highest gears. > > > > > > There is a computer that controls the shifting and lockup, located > > > underneath the glovebox. That should have been checked early on during > > > the troubleshooting. > > > > > > John Davies > > > Spokane WA USA > > > > > > |
Re: '02 Lerado
Thanks for the info I have one other ? If the TCC is where the lockup takes
place why do you think they pulled the TM after all replacing the TCC was the first thing that they did. "Jerry Newton" <fig@mcttelecom.com> wrote in message news:3fe73906$1_2@newspeer2.tds.net... > Unplugging the TCC (torgque converter clutch) or otherwise disabling it > won't get past the onboard computer, and the light will come back on if that > is what was done. I don't think that the dealer would have done that. > > Further, it is unwise to disconnect or otherwise disable the TCC. A torque > converter that does not lock up produces an enormous amount of heat, which > will ruin the transmission. Your buddy that did that didn't gain anything > except a broken transmission from the inevitable failure due to overheating. > > Jerry > > > "Joe" <joe837@hello.net> wrote in message > news:bs7b1b$acor3$1@ID-130119.news.uni-berlin.de... > > The first thing they tried was replacing the TC.That did not solve the > > problem.Replacing the computer was the second thing they did and pulling > the > > TM and repairing the leaking seal was last month..I must admit this is the > > most comfortable I've been with a service department in fifty years of > > buying cars.My friend has a older car and the 'lockup"would not release > and > > his buddy at the shop told him to pull the plug so it would release and > > drive until it failed completely because of the vehicles age. > > "John Davies" <johnedavies@comcast.net> wrote in message > > news:hp4euvciq1u55mc5j5m8qcqpemvpnbhuii@4ax.com... > > > On Mon, 22 Dec 2003 05:31:24 -0500, "Joe" <joe837@hello.net> wrote: > > > > > > >Had the engine light come on steady and the dealer scan indicated > > something > > > >to do with a"lock up"function of the transmission that is to enable a > few > > > >extra miles per gallon.They could not find any info about the code the > > scan > > > >was giving them.They would clear the computer and after several weeks > it > > > >would come on again same code.After going back 5 times I finally got a > > file > > > >number and told them to fix it or I would invoke the lemon law. > > > > They took the Jeep and pulled the Trans and said a seal was > > leaking > > > >and repaired it.That was 4 wks ago and the light has not come back on.I > > want > > > >to know if it is possible to disable the"lockup" function so the scan > > would > > > >not pick it up?I'm not sure at this time if a drop in mpg has > > occurred.Thank > > > >you. > > > > > > > Why do you think they would do that nasty trick to disable the torque > > > converter lockup? It would only come back to haunt them. Since they > > > removed the tranny it is very likely that they corrected the problem. > > > A functioning lockup TC is very easy to see on a test drive - the > > > engine rpm will drop as you back off on the throttle. It's a more > > > subtle jolt than the normal shift. With a 4 speed auto it acts as if > > > you have several extra gears. If I recall correctly, in the XJ tranny > > > the TC will lock in the three highest gears. > > > > > > There is a computer that controls the shifting and lockup, located > > > underneath the glovebox. That should have been checked early on during > > > the troubleshooting. > > > > > > John Davies > > > Spokane WA USA > > > > > > |
Re: '02 Lerado
Thanks for the info I have one other ? If the TCC is where the lockup takes
place why do you think they pulled the TM after all replacing the TCC was the first thing that they did. "Jerry Newton" <fig@mcttelecom.com> wrote in message news:3fe73906$1_2@newspeer2.tds.net... > Unplugging the TCC (torgque converter clutch) or otherwise disabling it > won't get past the onboard computer, and the light will come back on if that > is what was done. I don't think that the dealer would have done that. > > Further, it is unwise to disconnect or otherwise disable the TCC. A torque > converter that does not lock up produces an enormous amount of heat, which > will ruin the transmission. Your buddy that did that didn't gain anything > except a broken transmission from the inevitable failure due to overheating. > > Jerry > > > "Joe" <joe837@hello.net> wrote in message > news:bs7b1b$acor3$1@ID-130119.news.uni-berlin.de... > > The first thing they tried was replacing the TC.That did not solve the > > problem.Replacing the computer was the second thing they did and pulling > the > > TM and repairing the leaking seal was last month..I must admit this is the > > most comfortable I've been with a service department in fifty years of > > buying cars.My friend has a older car and the 'lockup"would not release > and > > his buddy at the shop told him to pull the plug so it would release and > > drive until it failed completely because of the vehicles age. > > "John Davies" <johnedavies@comcast.net> wrote in message > > news:hp4euvciq1u55mc5j5m8qcqpemvpnbhuii@4ax.com... > > > On Mon, 22 Dec 2003 05:31:24 -0500, "Joe" <joe837@hello.net> wrote: > > > > > > >Had the engine light come on steady and the dealer scan indicated > > something > > > >to do with a"lock up"function of the transmission that is to enable a > few > > > >extra miles per gallon.They could not find any info about the code the > > scan > > > >was giving them.They would clear the computer and after several weeks > it > > > >would come on again same code.After going back 5 times I finally got a > > file > > > >number and told them to fix it or I would invoke the lemon law. > > > > They took the Jeep and pulled the Trans and said a seal was > > leaking > > > >and repaired it.That was 4 wks ago and the light has not come back on.I > > want > > > >to know if it is possible to disable the"lockup" function so the scan > > would > > > >not pick it up?I'm not sure at this time if a drop in mpg has > > occurred.Thank > > > >you. > > > > > > > Why do you think they would do that nasty trick to disable the torque > > > converter lockup? It would only come back to haunt them. Since they > > > removed the tranny it is very likely that they corrected the problem. > > > A functioning lockup TC is very easy to see on a test drive - the > > > engine rpm will drop as you back off on the throttle. It's a more > > > subtle jolt than the normal shift. With a 4 speed auto it acts as if > > > you have several extra gears. If I recall correctly, in the XJ tranny > > > the TC will lock in the three highest gears. > > > > > > There is a computer that controls the shifting and lockup, located > > > underneath the glovebox. That should have been checked early on during > > > the troubleshooting. > > > > > > John Davies > > > Spokane WA USA > > > > > > |
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