Will PCM lock the Torque Convertor of a 700R4?
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On The Tree
Joined: Jul 2005
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Will PCM lock the Torque Convertor of a 700R4? Can the PCM be used to lock the torque convertor of a 700R4 when mated to an LS1? If so, does anything need to be done to simulate the sensors that would normally be sent from the trans?
Brian
Brian
Launching!
Joined: Dec 2004
Posts: 274
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From: Kansas City, MO
I am installing a 4l60e and I am connecting the car side wiring into the brake switch that is used to lock up the torque converter.
I suggest you talk to John Spears at SpearTech to learn what needs to be done to make the 700r4 work with the PCM.
I suggest you talk to John Spears at SpearTech to learn what needs to be done to make the 700r4 work with the PCM.
On The Tree
Joined: Sep 2004
Posts: 168
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From: Woodland Hills, Ca
Originally Posted by 914turboford
Can the PCM be used to lock the torque convertor of a 700R4 when mated to an LS1? If so, does anything need to be done to simulate the sensors that would normally be sent from the trans?
Brian
Brian
nick
Thread Starter
On The Tree
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I know there are alternatives to using the PCM but I'd like to have the PCM do it so that I do not have to worry about it like I did when I wired our Diesel K5 Blazer with a manual switch. I'm wondering if the LS1 PCM locks the PCM the same way the 700R4 PCM's did and if the trans info is necessary for the PCM to do it.
Teching In
Joined: Aug 2005
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From: San Antonio
We sell a stand-alone lockup kit for the 700R4 If you are in need of a 700R4 controller, we make a standalone harness that does it all for you. 35.00 . Relay included.
Thread Starter
On The Tree
Joined: Jul 2005
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Originally Posted by Speed Scene Wiring
If you are in need of a 700R4 controller, we make a standalone harness that does it all for you. 35.00 . Relay included.
On The Tree
Joined: Sep 2004
Posts: 168
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From: Woodland Hills, Ca
Originally Posted by Speed Scene Wiring
If you are in need of a 700R4 controller, we make a standalone harness that does it all for you. 35.00 . Relay included.
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On The Tree
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My 700r4 is from a 1986 S10 Blazer 4x4. It only has the two wires for the TC solenoid. So I don't believe it provides any kind of signal to tell when it is in 4th gear. How does this $35 harness know when to lock the TC?
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On The Tree
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NX74LS6,
Are you using a reprogrammed PCM? Or a manual PCM? Or a stock automatic PCM? If you are using a stock 4L60E PCM does it cause problems that the PCM does not get the correct signals from the trans?
BRian
Are you using a reprogrammed PCM? Or a manual PCM? Or a stock automatic PCM? If you are using a stock 4L60E PCM does it cause problems that the PCM does not get the correct signals from the trans?
BRian
Last edited by 914turboford; Aug 25, 2005 at 09:44 AM.
On The Tree
Joined: Sep 2004
Posts: 168
Likes: 1
From: Woodland Hills, Ca
Originally Posted by 914turboford
NX74LS6,
Are you using a reprogrammed PCM? Or a manual PCM? Or a stock automatic PCM? If you are using a stock 4L60E PCM does it cause problems that the PCM does not get the correct signals from the trans?
BRian
Are you using a reprogrammed PCM? Or a manual PCM? Or a stock automatic PCM? If you are using a stock 4L60E PCM does it cause problems that the PCM does not get the correct signals from the trans?
BRian
