disable lockup 1999 regal gs

**smokingjoe** · 02-14-2008

i have a shift kit and trans interceptor to increase line pressure, and when ever it goes in to lockup there is an annoying jarring type shudder, but i am very pleased with the rest of the shifts.

i am not worried about gas mileage.
thanks trannyman in advance

Joe Gancos

**Zef_66** · 02-15-2008

Originally Posted by smokingjoe

i have a shift kit and trans interceptor to increase line pressure, and when ever it goes in to lockup there is an annoying jarring type shudder, but i am very pleased with the rest of the shifts.

i am not worried about gas mileage.
thanks trannyman in advance

Joe Gancos

This is auctually quite common from what I have heard. My tranny did it to me when I started changing stuff, increasing line pressure, shift kit, etc. But I solved it by changing the shift points, and lock up points in my trans. And it does not do it anymore.

But I must caution you. Making your tranny not go into lockup can be very bad for your tranny. If you drive like this for any amount of time, your tranny temps will increase A LOT and it will not shift right. On top of this, the increased heat generated can cause the fluid to degrade at an increased rate and cause permanent damage to your transmission. This can happen just if you are driving it easy and not even beating on it. Just think what would happen if you start to drive aggressively. For these reasons, this kind of change is not recommended by anyone.

**Trannyman95** · 02-15-2008

What Zef said is 100% correct. If it is all in town driving then its not really going to make much of a difference, but highway driving is not going to be that good on the trans or fluid as locking up the converter gets rid of the converter slippage which creates heat, not to mention the few mpg you will lose. Out of curiousity have you tried unplugging the Intercepter yet???? I would try that. I have one here that the output transistor that controls the lockup solenoid was burned up and I can see that causing a lot of grief on the circuit and possibly causing what you have going on. Also there is a delay control for TCC in that box, have you tried adjusting that?

**smokingjoe** · 02-15-2008

Originally Posted by Trannyman95

What Zef said is 100% correct. If it is all in town driving then its not really going to make much of a difference, but highway driving is not going to be that good on the trans or fluid as locking up the converter gets rid of the converter slippage which creates heat, not to mention the few mpg you will lose. Out of curiousity have you tried unplugging the Intercepter yet???? I would try that. I have one here that the output transistor that controls the lockup solenoid was burned up and I can see that causing a lot of grief on the circuit and possibly causing what you have going on. Also there is a delay control for TCC in that box, have you tried adjusting that?

the interceptor i have only has an external adjustment for line pressure, i heard the older ones had it for both line pressure and tcc, unless under the box cover the pot for adjustment is still there.