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Old 07-19-2005, 08:07 PM
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700R4 won't lock up, what part in the trans?

91 Jimmy, 355 in front of a 700R4. I did the swap a year ago and figured out then that the converter wasn't locking up, probably wasn't before the swap, just never cared or noticed. A lock up kit is correctly installed to replace the computer so I'm figuring it's the transmission. With gas prices the way they are I figure any help in the MPG area is worth the time.

What in the transmission could be bad? It shifts fine otherwise and I don't want to go the rebuild route yet if it is something I can replace and go with till it dies a normal death... I'm not afraid to tear into it if I can do it in the vehicle.

Thanks in advance!

Lance

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Old 07-19-2005, 08:53 PM
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I would retrace the steps of the installation of the lock up kit.

The lock up solenoid could be faulty,

no 12 volts to the tranny?

Faulty brake light switch?

Blown fuse?

what all have you tested?







Quote:
Originally Posted by LanceM
91 Jimmy, 355 in front of a 700R4. I did the swap a year ago and figured out then that the converter wasn't locking up, probably wasn't before the swap, just never cared or noticed. A lock up kit is correctly installed to replace the computer so I'm figuring it's the transmission. With gas prices the way they are I figure any help in the MPG area is worth the time.

What in the transmission could be bad? It shifts fine otherwise and I don't want to go the rebuild route yet if it is something I can replace and go with till it dies a normal death... I'm not afraid to tear into it if I can do it in the vehicle.

Thanks in advance!

Lance
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Old 07-20-2005, 06:21 AM
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Checked the install and have 12V at the tranny, even hot wired the 12v to bypass the install to force lockup and still no lockup, that's why I'm convinced it is in the trans.

Lance
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Old 07-20-2005, 07:12 PM
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I'll repost one item:

Quote:
The lock up solenoid could be faulty,




Quote:
Originally Posted by LanceM
Checked the install and have 12V at the tranny, even hot wired the 12v to bypass the install to force lockup and still no lockup, that's why I'm convinced it is in the trans.

Lance
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Old 07-20-2005, 07:20 PM
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Ok thanks,
I'll buy a book and find out what it will take to change it.

Thanks again,
Lance
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Old 07-20-2005, 07:35 PM
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Well, I am confused.

you stated :

Quote:
A lock up kit is correctly installed to replace the computer so I'm figuring it's the transmission.
Then you posted:

Quote:
Checked the install and have 12V at the tranny, even hot wired the 12v to bypass the install to force lockup and still no lockup, that's why I'm convinced it is in the trans.

You cannot check the complete install of the aftermarket lock up kit without pulling the pan to check the internal wires.

So I would think you did not install the lockup kit? THis was performed by some one else?

All kits I know of include parts that install inside the tranny IE: Wire harness , solenoid & pressure switch.






Quote:
Originally Posted by LanceM
Ok thanks,
I'll buy a book and find out what it will take to change it.

Thanks again,
Lance
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Old 07-20-2005, 09:10 PM
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Sorry,
I got it figured out, thanks for putting up with me, everyone should be good at something, and I think my something is making a fool of myself, oh well practice makes perfect... perfect idiot in this case.... I don't want to point out my mistake otherwise everyone will yell idiot !!! :0

Soon to be head against concrete fixing my F up...

Thanks again,
Lance
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Old 07-21-2005, 07:45 AM
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Quote:
Originally Posted by LanceM
Sorry,
I got it figured out, .... I don't want to point out my mistake otherwise everyone will yell idiot !!! :0
Post what you found to help others in the future, we won't yell idiot, but we will laugh along with you.
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Old 07-21-2005, 08:58 AM
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I am used to the laughter ...... it is when they point at me too!

that I do not like.
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Old 08-16-2005, 07:04 PM
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Quote:
Originally Posted by M&M CUSTOM
Post what you found to help others in the future, we won't yell idiot, but we will laugh along with you.
OK, I'll tell, but in this case it is vehical specific would I guess. In order to make things easy on myself I used the factory wiring as much as possible, the wire to the trans was tan/black, hooked it to ground and good to go, but no go. Found the second damn tan/black, hooked it up good to go. The first tan black was some ignition wire which I'm no longer using so I didn't realize at first that I didn't have a ground going to the tranny... Always hated electrical problems in a car, why with all the colors available would anyone put two wires the same color in a harness that did two different things??? Ah well live and learn, OK, all at one time now, IDIOT!!!
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