Overdrive

[Diesel Farmer]

How can i make my truck go into overdrive sooner and stay there. Right now it goes into overdrive at 45 and keeps shifting down and then back up.:nail:

 

[CookCR]

You can get a signal conditioner to fix the shuttle from drive to overdrive but it's not going to help it go into overdrive sooner.

 

[Samaras Diesel]

manual overdrive switch like what a manual valvebody has. Simular to how a lock up switch works, when your up to the speed you want flip you overdrive switch. presto! overdrive in second gear.

 

[madmikeismad]

I've been meaning to ask, what wire is it?

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[Samaras Diesel]

I have no idea for overdrive, but on a 47re if you ground the orange wire with black stripe the run a toggle switch/button to it it will lock the t.c. up.

 

[cumminss2000]

It's the brown wire on the middle plug.

 

[Samaras Diesel]

I was prety sure the instructions on tst products seaid orange wire with brown or black stripe. i may be wrong.

 

[cumminss2000]

I was prety sure the instructions on tst products seaid orange wire with brown or black stripe. i may be wrong.

The orange with black stripe is for lockup and the brown one is for the overdrive.

 

[Samaras Diesel]

Ok i understand now, thanks!

 

[Headcase98002]

I'm locked up in OD at 42mph. It's do e with a resistor in the temp signal at the PCM.

 

[madmikeismad]

It's the brown wire on the middle plug.

The orange with black stripe is for lockup and the brown one is for the overdrive.

Solid brown? Gotta ask, my luck there's 6 brown wires.

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[madmikeismad]

I'm locked up in OD at 42mph. It's do e with a resistor in the temp signal at the PCM.

Mine does that anyways unless im getting in her pretty good.

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[mathews8pt]

How can i make my truck go into overdrive sooner and stay there. Right now it goes into overdrive at 45 and keeps shifting down and then back up.:nail:

Are you sure its not the TC locking/unlocking? A bad tps or a ground issue can cause that sometimes

 

[madmikeismad]

Are you sure its not the TC locking/unlocking? A bad tps or a ground issue can cause that sometimes

I didn't catch that mph. Yeah make sure its not the tc.

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[cumminss2000]

Solid brown? Gotta ask, my luck there's 6 brown wires.

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Yup, it's solid brown and there is only one.

 

[Diesel Farmer]

its not the tq locking up that happens at like 40 and it drops into od at 45 then if you dont speed up it it goes back down a gear

 

[Signature600]

Why do you want it in OD sooner than 45? I always HATED that about mine, so I kept messing with it until I got the OD shift at 55-60.

Chris

 

[Diesel Farmer]

because i drive on a lot of back roads that are around 40 and 50 mph and its always shifting up and down

 

[cumminss2000]

because i drive on a lot of back roads that are around 40 and 50 mph and its always shifting up and down

You don't want to be lugging it in high gear a lot though. You burn up the clutches due to low pressure.

 

[BigPapa]

its not the tq locking up that happens at like 40 and it drops into od at 45 then if you dont speed up it it goes back down a gear

I think you have it mixed up here. TC lock-up is the last "shift" you feel or notice. Unless you have the tranny modified or have a TC lock-up switch, it will not shift from 3rd to OD AFTER lock-up.

It's shifting from 3rd to OD at 40 and TC lock-up at 45. Then, everytime you let off the throttle the TC will unlock and then re-lock when you get back in the throttle. The only way around this is a TC lock-up switch, but I don't think you'll like it for the application you've stated. Below 45 in OD with the TC locked you will be turning @ 1400rpm or less depending on rear end gears. You can try it, it's not hard and it's reversible, but I don't think you'll like it.